Get with your partner and take turns taking one or two counters from the pile of 18. How many counters do you each have? You should each have 9 counters. What multiplication fact can we make from this? 2 x n = 18 n = 9
In this example, you knew: • The total number of counters. • The number of groups. This is called Equal Sharing.
You and your partner count out 16 counters. Set the other remaining counters to the side. Count out 4 counters per group. How many groups are there? You should each have 4 groups. What multiplication fact can we make from this? n x 4 = 16 n = 4
In this example, you knew: • The total number of counters. • The number counters in each group. This is called Equal Grouping.
Sharing Equal _______: Total number of objects and number of groups are known, but number of objects in each group is unknown. Grouping Equal _______: Total number of objects and number of objects in each group are known, but number of groups is unknown.
1. ______ x 3 = 21 Did you do equal sharing or equal grouping?
“I Can” Statement: I can tell the difference between equal sharing and equal grouping and apply it to multiplication facts.