This is a complete unit to facilitate the teaching and learning of algebraic identities at an introductory level (approximately Year 9). 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 (The additional document provides some information on how you use and share these files). They are then challenged 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.