Illustrative Mathematics K-5 MathTM is an IM Certified product providing trusted, highly rated materials to ensure students thrive in mathematics. Each Illustrative Mathematics lesson has four phases, from pre-unit practice modules to cool downs, focusing students’ attention on definitions, notations, and graphical conventions contributing to the development of real numbers.
The big ideas in grade 1 include: developing understanding of addition, subtraction, and strategies for addition and subtraction within 20; developing understanding of whole-number relatio
In this unit, students explore algebra as a system of concepts used to represent relationships. They learn to express these relationships using words, equations, tables, and graphs. By exploring world records, some of the most astonishing feats ever achieved, they see algebra in action and even start imagining their own record-breaking possibilities. They also learn about algebra as a style of mathematical thinking for formalizing patterns of change. They extend their notion of variable from a letter in an equation that represents a number to a broader definition, that of a qu