DLI 1st grade guide

Operations and Algebraic Thinking

Core Guide

Grade 1

Suggested Models

Suggested Strategies

• Counting on method • Making ten method; ten-frames • Decomposing a number leading to a ten • Use the relationship between addition and subtraction • Create equivalent but easier or known sums (doubles, doubles plus/minus one)

Problem: Julie has 5 apples. Lucy has 3 apples. How many more apples does Julie have than Lucy?

• Create their own word problems verbally • Use drawings, objects, and equations • Use a bar model • Use Part/Part/Whole

OR

How many fewer apples does Lucy have than Julie?

1.OA.1

ADA Compliant 1/13/2020