The Year 11 Mathematics EAS 1.6 booklet is designed for use by Year 11 students studying the external achievement standard Geometric Reasoning for NCEA Level 1 Mathematics. The EAS 1.6 booklet comprises full notes and worked examples for each concept within the standard with space for key points to be highlighted. Each concept is followed by a number of problems, which are identified as either Achievement, Merit or Excellence. At the end of the booklet there is an original practice External Achievement Standard. The answers at the back of the book often include some of the setting out required to solve the problems so students can see the correct approach.