Eureka Math A Story of Units Eureka Math is based on the theory that mathematical knowledge is conveyed most clearly and effectively when it is taught in a sequence that follows the "story" of mathematics itself. In A Story of Units, our elementary curriculum, this sequencing has been joined with methods of instruction that have been proven to work, in this nation and abroad. These methods drive student understanding beyond process to deep mastery of mathematical concepts. The goal of Eureka Math is to produce students who are not merely literate, but fluent, in mathematics. This teacher edition is a companion to Eureka Math online and EngageNY. Sequence of Grade 1 Modules Module 1: Sums and Differences to 10 Module 2: Introduction to Place Value Through Addition and Subtraction Within 20 Module 3: Ordering and Comparing Length Measurements as Numbers Module 4: Place Value, Comparison, Addition and Subtraction to 40 Module 5: Identifying, Composing, and Partitioning Shapes Module 6: Place Value, Comparison, Addition and Subtraction to 100