Areas and Multiplication

Materials: Handouts, grid paper

Step 1:

¨ Actively read about the multiplication algorithm in base 10 on pp. 143-6 of Bassarear.

¨ Do problems 14 and 15 on pp. 161-2 of Bassarear.

¨ Complete Activity Set 3.3: Multiplying with Multibase Pieces from Mathematics for Elementary Teachers: An Activity Approach.

¨ Actively read about multiplying with decimals on pp. 187-8 of Bassarear.

¨ Explain how one diagram can illustrate many different multiplications and how those multiplications are related to each other.

¨ Explain the connections between the algorithm (i.e., the partial products) and different regions in the diagram.

¨ Do problem 9 on p. 300 of Bassarear.