Unit 8, Lesson 10
Write Expressions and Equations to Represent Arrays
Grade 2
Preparation
Lesson Narrative
In a previous lesson, students matched arrays to expressions with equal addends. In this lesson, students write equations with equal addends to represent an array as the sum of the number of objects in each row or the sum of the number of objects in each column.
- Action and Expression
- MLR2
- Create arrays and represent the objects in the array with an equation with equal addends.
- Let’s write equations to represent arrays.
Required Preparation
None
Teacher Reflection Questions
What connections did students make between the structure of an array and the structure of the addition expressions and equations they wrote? What questions did you ask to help make the connections more visible?