Curated OER
Part-Part-Whole
First graders work with partners, using cubes to make addition sentences. In this math lesson, 1st graders separate cubes into 2 parts and discuss the relationship to addition sentences. Students practice separating cubes. Students make...
Curated OER
Part Part Whole
First graders solve number sentences. In this problem solving lesson, 1st graders construct addition sentences using a part part whole mat. Students demonstrate problem solving strategies using cubes.