### As Big As Can Be

The introductory videos introduce students to a complete unit of work, a study of quadratic functions. The unit starts with a geometric optimisation problem (paper folding) that prompts students to ask the question “is that as big as can be?” …

**Category:** Replacement Units, Videos for Learning

**Technology:** CLASSPAD 300/330, CLASSPAD FXCP400, FX100AU, FX82AU, FX9860GAU, FXCG20/50AU

### CG115 Performing trigonometric calculations

This short video shows how to perform trigonometric calculations using the Run-Matrix app of a CASIO fx-CG series graphics calculator in order to solve simple trigonometric equations. CG20 AU and CG50 AU versions are presented.

### Working with Ellipses – Explore and Think – with the fx-CG20 AU

This Explore and Think activity focusses on an ellipse-based diagram that claims to represent the percentage of green space in some of the world’s cities.

A study of this diagram suggests that something is not right – and then leads to an analysis involving length and area, measurement and ratio.

EAT activities include student worksheets accompanied by solutions/teacher notes that feature step-by-step support for the use of the CASIO fx-CG20 AU

### Working with nested radicals – Explore and Think – with the fx-CG20 AU

In this Explore and Think activity students work with surds in different and fruitful ways. The idea of nested radicals leads students from the evaluation of some funny-looking surd expressions through to the making of conjectures. These conjectures can be proved via the solution of a quadratic equation.

EAT activities include student worksheets accompanied by solutions/teacher notes that feature step-by-step support for the use of the CASIO fx-CG20 AU.

### CG515 Changing a graph’s View Window

This short video shows how to change a graph’s View Window, using the Graph app of a CASIO fx-CG series graphics calculator, and discusses some of the advantages and disadvantages of different View Window settings. CG20 AU and CG50 AU versions are presented.

### CG514 Finding x and y values using a graph

This short video shows how to determine a function’s x and y values from its graph, using the Graph app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG601 Drawing a ‘dynamic’ graph

This short video shows how to draw an animated ‘dynamic’ graph showing the effect of changing a parameter upon the graph of a function, using the Dyna Graph app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented. In particular, the effect of changing the gradient value “m” in a linear function of the form y=mx+c is addressed.

### Working with measurement in 3D – Explore and Think – with the fx-CG20 AU

This Explore and Think activity presents a different take on the measurement of volume and the study of solids. Inspired by some of Australia’s most iconic scultures, cones and cylinders take on a whole new dimension.

These simple shapes lead to some complex and interesting analysis involving trigonometry and, ultmately, to the errors and issues that arise in the interaction between two and three dimensions.

EAT activities include student worksheets accompanied by solutions/teacher notes that feature step-by-step support for the use of the CASIO fx-CG20 AU.

### Continued fractions – Explore and Think – with the fx-CG20 AU

In this Explore and Think activity students go on a journey through their investigation of continued fractions. This journey has the potential to feature such highlights as recursion and convergence, the fibonacci sequence and phi, quadratic equations and similarity. It could be a short stroll or an epic adventure, depending on its treatment.

EAT activities include student worksheets accompanied by solutions/teacher notes that feature step-by-step support for the use of the CASIO fx-CG20 AU.

### Simulating a random process – Explore and Think – with the fx-CG20 AU

In this Explore and Think activity students utilise the ability of handheld technology to easily model random processes. In this case the generation of random integers lets students explore the likely outcomes of two conflicting strategies in a game of chance. The evaluation of the desirability of these strategies can be based on experimental probability values, or can lead into an analysis of the probability of compound events.

EAT activities include student worksheets accompanied by solutions/teacher notes that feature step-by-step support for the use of the CASIO fx-CG20 AU.

### Stacked Exponents – Explore and Think – with the fx-CG20 AU

This Explore and Think activities looks at truly BIG numbers, and explores the idea of a “stacked exponent”, how big such numbers are and how they are calculated.

EAT activities include student worksheets accompanied by solutions/teacher notes that feature step-by-step support for the use of the CASIO fx-CG20 AU.

### Working with gradient – Explore and Think – with the fx-CG20 AU

In this Explore and Think activity students apply the mathematics of gradient to the world’s steepest street! Different representations of gradient are included, average gradient is calculated and, via a quadratic function of best fit, calculator derivative calculations and some manual calculus, a maximum gradient is found.

EAT activities include student worksheets accompanied by solutions/teacher notes that feature step-by-step support for the use of the CASIO fx-CG20 AU.

**Category:** Lesson Activities (EAT)

**Technology:** FX9860GAU, FXCG20/50AU

### CGC11 Calculating loan repayments

This short video shows how to calculate loan repayments on a reducing balance, compound interest loan using the Financial app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CGA21 Finding the roots of polynomials

This short video shows how to find the roots of a polynomial function up to degree 6, using the Equation app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### Developing and using regression models – Explore and Think – with the fx-CG20 AU

In this Explore and Think activity students utilise the ability of handheld technology to readily develop regression models for bivariate data. The data at hand is of atmospheric carbon dioxide and global temperature in the current era – a context within which modeling and extrapolation is both meaningful and relevant.

EAT activities include student worksheets accompanied by solutions/teacher notes that feature step-by-step support for the use of the CASIO fx-CG20 AU.

### Mental-jaunt #1 (Feb 14, 2013)

To students (of all ages):

**jaunt (noun)**

a short excursion or journey for pleasure

**mental-jaunt (noun)**

a short mental excursion or mental journey for pleasure, nothing too heavy!

Have a go at mental-jaunt #1 – a wee journey with numbers.

### Mental-jaunt #2 (February 4, 2014)

jaunt (noun) a short excursion or journey for pleasure mental-jaunt (noun) a short mental excursion or mental journey for pleasure, nothing too heavy! Mental-jaunts are trails that will evoke certain ways of thinking that are very helpful both in understanding more complex …

### Generosity – an approach to fractions and percentages.

This unit uses the context of generosity to introduce a need to have a fractional way of thinking about something.

It develops a way of thinking about fractions – the for-every idea – that is the elusive multiplicative model.

Developed over about 5 years, this approach has been tried and seems to work. 🙂

**Category:** General Resources

**Technology:** CLASSPAD 300/330, CLASSPAD FXCP400, FX100AU, FX82AU, FX9860GAU, FXCG20/50AU

### DOGBALL

Below you can access: DOGBALL.pdf – a currently-brief but mostly complete summary of the activity you experienced. vdbcgraw.csv – the csv file of the data we used in the activity – which is a subset of the data that was …

**Category:** General Resources

**Technology:** CLASSPAD 300/330, CLASSPAD FXCP400, FX9860GAU, FXCG20/50AU

### Logarithms – when adding is multiplying (9860)

This unit aims to provide a simple/useful way to thing about logarithms when first meting them.

We use two examples of “hard” to graph data (due to the extreme range in the values) to alert students to the idea of thinking about a number as its power, as opposed to its absolute value.

The rest of the unit aims to establish a way to think about calculating with logarithms that will set a sound foundation for later on and that builds on their knowledge of ‘indices’ from previous years.

### Flow – Ideas that underpin Differential Calculus

Presented here is a tried and proven three to five lesson sequence that begins with an engaging real-world context and grows students from the idea of average rate of change to instantaneous rate of change.

It is accessible to any student who has an understanding of average and gradient.

In this collection of resources you will find: a) a three-part introductory video (I, IIa and IIb), which structures the sequence of learning, b) two support video that shows “how to” do the technical stuff on the CG 20 AU.

### Pigs, Pens and Mathematics

Pigs, pens and mathematics is a two to four lesson, tried and proven, activity that moves students from measurement-thinking to functional-thinking with the help a simple but rarely used idea – do not evaluate a calculation.

A small, but authentic and enlightening use of electronic technology is made.

It would fit perfectly in a measurement topic at any of the years 8 to 11.

In this collection of resources you will find:

a) a two-part introductory video, that can be played to the class to kick things off,

b) one support video that shows “how to” do the technical stuff on the CG 20 AU,

c) one support video that explores the mathematical ideas that can be developed with the help of the technology,

d) one ‘task sheet’ for students to work on after watching the videos or being instructed by the teacher,

e) a complete ‘unit of work’ that allows students to consolidate the mathematical ideas and skills they have learned.

### Cup Snakes – Describing Linear Change

A video introduction presents the mathematics of cup snakes, a hands on phenomena involving additive change that gives rise to a way to think about linear growth. Modeling this phenomena theoretically, with the help of two cups, and through data, with the help of many, many cups, these videos give rise to some of the big ideas around developing and using linear algebraic models to describe additive bi-variate change. These ideas are then unpacked in the accompanying ‘chapter replacement’ booklet.

**Category:** Videos for Learning

**Technology:** CLASSPAD 300/330, CLASSPAD FXCP400, FX100AU, FX82AU, FX9860GAU, FXCG20/50AU

### The Confidence Interval for a Proportion

https://youtu.be/HzyxRPIIOH0

### Developing ways-of-thinking about the ideas that form calculus

This video and documents outline a 4 session course that aim to assist students to develop the optimal ways-of-thinking about the ideas that underpin calculus.

### A quick list of sample means.

Download a program that will creates the number of samples you desire, of a size you define from a normal population with standard deviation and mean you define.

### Exponential and trigonometric functions

A selection of documents that share some nice ideas about exponential functions, trigonometric functions and a lovely context where both concepts come together.

**Category:** General Resources

**Technology:** CLASSPAD 300/330, CLASSPAD FXCP400, FXCG20/50AU

### ACMSP250 (Year 10) – Compare shapes of box plots ….

A selection of test questions and solutions for ACMSP250 (Year 10).

### ACMNA241 (Year 10) – Solve simple quadratic equations ….

A selection of test questions and solutions for ACMNA241 (Year 10).

### ACMMG244 (Year 10) – Apply logical reasoning ….

A selection of test questions and solutions for ACMMG244 (Year 10).

### ACMNA240 (Year 10) – Solve linear equations …. alg. fractions ….

A selection of test questions and solutions for ACMNA240 (Year 10).

### ACMSP253 (Year 10) – Evaluate statistical reports in ….

A selection of test questions and solutions for ACMSP253 (Year 10).

### ACMSP252 (Year 10) – Investigate and describe bivariate ….

A selection of test questions and solutions for ACMSP252 (Year 10).

### ACMMG242 (Year 10) – Solve problems involving surface area ….

A selection of test questions and solutions for ACMMG242 (Year 10).

### ACMMG245 (Year 10) – Pythagoras and trigonometry

A selection of test questions and solutions for ACMMG245 (Year 10).

### ACMNA229 (Year 10) – Money and financial mathematics

A selection of test questions and solutions for ACMNA229 (Year 10).

### ACMNA233 (Year 10) – Expand binomial products ….

A selection of test questions and solutions for ACMNA233 (Year 10).

### ACMNA236 (Year 10) – Solve linear inequalities ….

A selection of test questions and solutions for ACMNA236 (Year 10).

### ACMNA237 (Year 10) – Solve linear simultaneous ….

A selection of test questions and solutions for ACMNA237 (Year 10).

### ACMNA238 (Year 10) – Solve problems involving parallel ….

A selection of test questions and solutions for ACMNA238 (Year 10).

### ACMNA239 (Year 10) – Explore the connection between ….

A selection of test questions and solutions for ACMNA239 (Year 10).

### ACMSP246 (Year 10) – Describe the results of two- and three-step ….

A selection of test questions and solutions for ACMSP246 (Year 10).

### ACMSP247 (Year 10) – Use the language of ‚Äòif ….then, ‚Äògiven‚Äô ….

A selection of test questions and solutions for ACMSP247 (Year 10).

### ACMSP251 (Year 10) – Use scatter plots to investigate ….

A selection of test questions and solutions for ACMSP251 (Year 10).

### ACMSP249 (Year 10) – Construct and interpret box plots ….

A selection of test questions and solutions for ACMSP249 (Year 10).

### ACMNA234 (Year 10) – Substitute values into ….

A selection of test questions and solutions for ACMNA234 (Year 10).

### ACMMG243 (Year 10) – Formulate proofs involving congruent ….

A selection of test questions and solutions for ACMMG243 (Year 10).

### ACMNA231 (Year 10) – Simplify algebraic products ….

A selection of test questions and solutions for ACMNA231 (Year 10).

### ACMNA232 (Year 10) – …. simple algebraic fractions with numerical denominators ….

A selection of test questions and solutions for ACMNA232 (Year 10).

### ACMNA235 (Year 10) – Solve problems involving linear ….

A selection of test questions and solutions for ACMNA235 (Year 10).

### ACMSP248 (Year 10) – Determine quartiles ….

A selection of test questions and solutions for ACMSP248 (Year 10).

### ACMNA230 (Year 10) – Factorise algebraic expressions ….

A selection of test questions and solutions for ACMNA230 (Year 10).

### CG215 Drawing multiple boxplots of list data

This short video shows how to enter lists of data, and how to duplicate and edit these lists, using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

* This video stands alone but also can be viewed as Part 5 of a 5-part series of videos on working with univariate data.

* These videos cover entering and editing data, obtaining a 1-variable analysis, drawing histograms and box plot(s).

* The 5 videos are numbered CG211, CG212, … , CG215

### CG214 Drawing a boxplot of list data

This short video shows how to draw a boxplot for list data using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

* This video stands alone but also can be viewed as Part 4 of a 5-part series of videos on working with univariate data.

* These videos cover entering and editing data, obtaining a 1-variable analysis, drawing histograms and box plot(s).

* The 5 videos are numbered CG211, CG212, … , CG215

### CG213 Drawing a histogram of lists data

This short video shows how to draw a histogram of list data using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

* This video stands alone but also can be viewed as Part 3 of a 5-part series of videos on working with univariate data.

* These videos cover entering and editing data, obtaining a 1-variable analysis, drawing histograms and box plot(s).

* The 5 videos are numbered CG211, CG212, … , CG215

### CG212 Obtaining a 1-variable analysis of list data

This short video shows how to obtain a one variable analysis for list data, including values such as mean, median, standard deviation etc, using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

* This video stands alone but also can be viewed as Part 2 of a 5-part series of videos on working with univariate data.

* These videos cover entering and editing data, obtaining a 1-variable analysis, drawing histograms and box plot(s).

* The 5 videos are numbered CG211, CG212, … , CG215

### CG211 Entering and editing data in lists

This short video shows how to enter lists of data, and how to duplicate and edit these lists, using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

* This video stands alone but also can be viewed as Part 1 of a 5-part series of videos on working with univariate data.

* These videos cover entering and editing data, obtaining a 1-variable analysis, drawing histograms and box plot(s).

* The 5 videos are numbered CG211, CG212, … , CG215

### CG221 Drawing a scatterplot for bivariate data

This short video shows how to draw a scatterplot for bivariate data using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG112 Calculating recursively using Ans

This short video shows how to perform recursive calculations, in this case involving compound interest, using the Ans command in the Run.Mat app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG113 Converting units of measurement

This short video shows how to convert measurement values like temperature and area between different units of measurement using the Run-Matrix app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG111 Calculating with fractions

This short video shows how to operate with fractions using the Run.Mat app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG116 Calculating GCD and LCM

This short video shows how to calculate the Greatest Common Divisor (GCD) and Lowest Common Multiple (LCM) of two integers using the Run-Matrix app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CGI11 Fitting a function to a picture

This short video shows you how to fit a quadratic function to a picture of the Sydney Harbour Bridge using the Picture Plot app of a CASIO fx-CG20AU.

### CGA32 Solving for unknowns in formulae

This short video shows how to find the value of an unknown, via the substitution of known values into a formula and the use of the numerical Solver in the Equation app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CGA31 Solving an equation

This short video shows how to solve ‘any’ equation using the numerical solver in the Equation app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented. Changing the ‘seed’ to obtain an alternative solution, and the graphical representation of multiple solutions, is included.

### CG223 Fitting a regression model to bivariate data

This short video shows how to generate a regression model of “best fit” for bivariate data via a scatterplot drawn using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CGA11 Solving a system of simultaneous equations

This short video shows how to solve a system of linear simultaneous equations using the Equation app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG114 Working with angles – converting to and from degrees, mins and secs

This short video shows how to convert angles measured in degrees minutes and seconds to and from angles expressed as decimals using the Run-Matrix app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG712 Generate and plot a table of values

This short video shows how to generate a table of values, along with a plot of the table, for a function using the Table app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG222 Finding a linear model of ‘best fit’ for bivariate data

This short video shows how to determine a line of best fit for bivariate data via a scatterplot drawn using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG713 Using a table of values

This video shows how to use a table of values to investigate the behaviour of a function, in particular when it takes a zero value, using the Table app of a CASIO fx-CG20 AU.

### CG711 Making a table of values

This short video shows how to generate a table of values for a function using the Table app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG411 Building a spreadsheet

This short video shows you how to build a spreadsheet to hunt for Pythagorean Triads on a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CGF12 Resetting calculator memory

This short video shows you some ways to reset the memory of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG151 Displaying numbers in different ways

This short video shows you how to change the setting of a CASIO fx-CG series graphics calculator so that numerical values are displayed in different ways.CG20 AU and CG50 AU versions are presented.

### CG124 Investigating the sums of random numbers

This short video shows how to generate and sum two lists of (pseudo) random numbers, simulating the rolling of two six-sided dice many times, as well as how to graph this output, using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG123 Generating and graphing lists of random numbers

This short video shows how to populate a list with (pseudo) random numbers, simulating the rolling of a six-sided die many times, as well as how to graph this output, using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG122 Generating (pseudo) random numbers

This short video shows how to generate (pseudo) random numbers, both integer and otherwise, using the Run-Matrix app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG811 Use a recursive formula to create a table

This short video shows how to use a recursive relationship to generate a table of values using the Recursion app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG511 Drawing a graph

This short video shows how to draw the graph of function using the Graph app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG512 Obtaining graphical information

This short video shows how to obtain graphical information like x intercepts and turning points from the graph of a function drawn using the Graph app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG132 Evaluating a definite integral

This short video shows how to a definite integral using the Run.Mat app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

**Category:** 'How to' on Graphics/Non-CAS

**Technology:** FX9860GAU, FXCG20/50AU

### CG233 Calculating a value from a proportion of a normal distribution

This short video shows how to calculate a “cut off” value for a given proportion of a normal distribution, sometimes called an “inverse normal” calculation, using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG142 Single calculations with matrices

This short video shows how to define an augmented matrix and then reduce it to reduced row echelon form using the Run-Matrix app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG143 Reducing an augmented matrix to reduced row echelon form

This short video shows how to perform single calculations, like finding matrix inverses and determinants, using the Run-Matrix app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG232 Calculating a probability from a normal distribution

This short video shows how to calculate probabilities associated with a normal distribution using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG513 Sketching a tangent to a curve

This short video shows how to sketch the tangent to a curve using the Graph app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG234 Calculating a confidence interval for p

This short video shows how to calculate a confidence interval for p using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG231 Calculating Binomial Probabilities

This short video shows how to calculate probabilities associated with a binomial distribution using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG121 Calculating with nCr

This short video shows how to perform calculations involving the Combinations function nCr using the Run.Mat app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### Describing change (9860)

This replacement unit introduces algebraic models (linear and simple exponential) to describe change in the world around us. The fitting of models to bivariate data is approached via the underlying properties of constant additive or multiplicative change. The unit contains a wealth of data drawn from a range of aspects of the modern world. Extensive notes are provided on the use of 9860 technology. All of unit’s data is provided it g1m files, ready for file transfer.

### The wind in your sails (9860)

This is a replacement unit to facilitate the teaching and learning of right-angle triangle trigonometry. The students begin by ‘learning’ how to sail a boat and then engage with various aspects of sailing and as a result learn about the fundamental trigonometric ratios. The unit comes with pre-made 9860 Geometry files that enable the students to sail virtual boats, collect data on their sailing and through this learn about trigonometric ratios. The unit includes traditional learning and problems as well as some not so traditional learning.

### Seeing double (9860)

This is a replacement unit introducing algebraic identities including the distributive law, perfect squares and the difference of two squares, general binomial expansion and factorisation and completing the square. The unit exploits the world of animation to reinforce student’s notion of variable. The unit comes with pre-made 9860 files that sequentially build up animated paddocks that confront student’s notions of equivalence. They are then challenge to express this equivalence symbolically and from this the algebraic identities flow. The unit also includes ‘drill’ sections to assist students in the automation of these most important algebraic skills.

### CGF11 Transferring Memory Content

This short video shows you how to transfer memory content between the Main and Storage Memory of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

### CG516 Finding areas between graphs

This short video shows you how to find the area of a region between two graphs using the Graph app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

**Category:** 'How to' on Graphics/Non-CAS

**Technology:** FX9860GAU, FXCG20/50AU

### CG141 Defining and calculating with matrices

This short video shows how to define and calculate with matrices using the Run-Matrix app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

**Category:** 'How to' on Graphics/Non-CAS

**Technology:** FX9860GAU, FXCG20/50AU

### CG131 Calculating the value of a derivative

This short video shows how to determine a derivative value, i.e. the value of a derivative function for a given x value, using the Run.Mat app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.

**Category:** 'How to' on Graphics/Non-CAS

**Technology:** FX9860GAU, FXCG20/50AU

### Optimisation (9860)

When studying quadratic functions/calculus, do too many of your students find ‘optimisation questions’ hard? Have you ever wondered why? The booklet you can download here is the unit of work that supports the ideas presented in a number of workshops during 2011 and 2012 that outlined why students find the ideas hard. Basically, traditional teaching-and-doing approaches fail to focus on what is really happening: the measurement on one dimension and the subsequent calculation of other dimensions. Also, algebraic simplification turns out to be the devil – the patterns in the symbols are lost and so generalisation is not ‘seen’! The approach in the booklet supports the idea of each student developing a calculation and then comparing and contrasting to it other’s calculations – it is in this that the symbolic patterns appear and the generalisation literally reveals itself.

### Video Solutions – 2019 VCE Methods Exam 2 (feat. efficient ClassPad use) – Section A – Q1 to Q10.

These two videos present an approach or approaches to the 2018 VCE Mathematical Methods Examination 2 – Section A, Q1 to Q10. These approaches incorporate the use of CAS as well as ‘by hand’ solution methods. At times, two alternative methods are presented. The providing of two solutions is intended to encourage a conversation between teachers and students about the most discerning and efficient way to tackle the mathematics presented in this form of assessment.

**Category:** VCE Resources

**Technology:** CLASSPAD FXCP400, FXCG20/50AU

### Programs referred to in the “How Do I CODE …” book for the fx-CG50 AU

Download the programs that accompany the book How Do I CODE on a CASIO fx-CG50AU.

### Video Solutions – QCE Methods Sample 2020 Paper 2 – Q18 to Q20

This video presents an approach or approaches to the QCE Mathematical Methods Sample 2020 Paper 2, Questions 18 to 20. These approaches incorporate the use of a Casio fx-CG50 AU as well as ‘by hand’ solution methods. At times, two alternative methods are presented. The providing of two solutions is intended to encourage a conversation between teachers and students about the most discerning and efficient way to tackle the mathematics presented in this form of assessment.

**Category:** QCE Resources

**Technology:** FX9860GAU, FXCG20/50AU

### Video Solutions – QCE Methods Sample 2020 Paper 2 – Q15 to Q17

This video presents an approach or approaches to the QCE Mathematical Methods Sample 2020 Paper 2, Questions 15 to 17. These approaches incorporate the use of a Casio fx-CG50 AU as well as ‘by hand’ solution methods. At times, two alternative methods are presented. The providing of two solutions is intended to encourage a conversation between teachers and students about the most discerning and efficient way to tackle the mathematics presented in this form of assessment.

**Category:** QCE Resources

**Technology:** FX9860GAU, FXCG20/50AU

### Video Solutions – QCE Methods Sample 2020 Paper 2 – Q11 to Q14

This video presents an approach or approaches to the QCE Mathematical Methods Sample 2020 Paper 2, Questions 11 to 14. These approaches incorporate the use of a Casio fx-CG50 AU as well as ‘by hand’ solution methods. At times, two alternative methods are presented. The providing of two solutions is intended to encourage a conversation between teachers and students about the most discerning and efficient way to tackle the mathematics presented in this form of assessment.

**Category:** QCE Resources

**Technology:** FX9860GAU, FXCG20/50AU

### Video Solutions – QCE Methods Sample 2020 Paper 2 – MC – Q1 to Q10

These two videos present an approach or approaches to the QCE Mathematical Methods Sample 2020 Paper 2, Multiple Choice, Questions 1 to 10. These approaches incorporate the use of a Casio fx-CG50 AU as well as ‘by hand’ solution methods. At times, two alternative methods are presented. The providing of two solutions is intended to encourage a conversation between teachers and students about the most discerning and efficient way to tackle the mathematics presented in this form of assessment.

**Category:** QCE Resources

**Technology:** FX9860GAU, FXCG20/50AU

### Using a 9860 in the SACE Maths Studies examination.

The full title of this document is

Do you know all there is to know about using your graphics calculator in the SACE Mathematical Studies examination? – specifically the CASIO fx-9860G AU PLUS

As this suggests, this document outlines the functionality of the 9860 that is likely to be of use within the SACE Mathematical Studies examination. Featuring exam-style questions, screen shots and key strokes, it is comprehensive and detailed; easy to read and a handy reference.

**Category:** General Resources

**Technology:** FX9860GAU

### Using a 9860 in the SACE Maths Methods examination.

The full title of this document is

Do you know all there is to know about using your graphics calculator in the SACE Mathematical Methods examination? – specifically the CASIO fx-9860G AU PLUS

As this suggests, this document outlines the functionality of the 9860 that is likely to be of use within the SACE Mathematical Methods examination. Featuring exam-style questions, screen shots and key strokes, it is comprehensive and detailed; easy to read and a handy reference.

**Category:** General Resources

**Technology:** FX9860GAU

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