Curriculum Library

Operations & Algebraic Thinking Unit 5: Addition and Subtraction Equations

Key Concept: An expression is equivalent to another expression if they have the same value.

Lesson Sequences

O.5-1-5 Equivalence Within Equations  |
View Teacher-Facilitated Lesson Students determine whether given expressions are equivalent.  (35-45 min)
O.5-1-6 Making Equivalence Within Equations  |
View Teacher-Facilitated Lesson Students use strategies to create equivalent expressions.  (35-45 min)