Curated OER
Commutative Property
First graders use various models to learn the Commutative Property of Addition. In this Commutative Property instructional activity, 1st graders use other students, counters, balances, and dominoes to apply the addition property....
Curated OER
Do it With Dominoes
Students explore modes for addition. In this K-2 mathematics lesson, students investigate the four models of addition (counting, sets, number line, and balanced equations) using dominoes. Students examine the relationship...
Curated OER
Commutative Property
First graders investigate the Commutative Property of Addition. It is introduced using models such as students, counters, balances and dominoes. They discover the order of the numbers in an addition sentence does not change the result...