Count the Gum! Creating Sets With One Less

by Dandelion Dreams

Price: 150 points or $1.5 USD

Subjects: counting,cardinality,comparisons

Grades: 14,13,1

Description: Yum, Yum! Count the Gum! In this deck, students will create sets that are one less than the original set. After identifying how many gumballs are in the first gumball machine, they will drag and drop gumballs into the other gumball machine to create a set that has one less. Students will be creating sets from 1 - 9. Less can be a tricky concept for kids. Using 1 - 1 matching as a counting strategy is encouraged.