## Lesson: Dividing Two-Digit and Three-Digit Numbers

Developing the Concept

After showing students how to model division problems with base-ten blocks, have them work together in groups to model division problems with play money.

**Materials:** play money, paper and pencil for each student

**Preparation:** Divide the class into small groups. Designate a “banker” for each group. Give each banker a bag of 30 pennies to be used for regrouping only. Then give each group 4 one-dollar bills, 3 dimes, and 2 pennies.

**Wrap-Up and Assessment**

Review with students when it is necessary to place a zero in the quotient. Reinforce that after every subtraction in the division algorithm, the difference must be less than the divisor. If division is not possible after bringing down the next digit, then a zero must be placed as the next digit in the quotient.

You may wish to give students another division problem to model by using money or base-ten blocks. Have students use the model to complete the division algorithm. As you assess students, check to see whether they have a clear understanding of the division algorithm, the regrouping process, and the placement of zeros in the quotient. Note also those students who have not mastered the division facts.