Multiplication Part 1

Teaching/reviewing the concept of multiplication

• 1. Concrete: students use various objects (dried beans, tiles, etc.) to explore/review the “grouping” idea of multiplication  (Jo had 3 colors of jelly beans.  He had 4 green, 4 orange, and 4 red.  How many jelly beans did Jo have in all?)

  2. Pictorial: students draw groups (usually squares or circles); often called the “make groups” multiplication strategy

1. Abstract: students add groups of numbers (also called the “repeat addition” multiplication strategy).  Relate the concrete, pictorial and abstract steps to multiplication number sentences.  (4 x 3 = 12)  Introduce vocabulary: “factors” (4 and 3) and “product” (12).

Making Groups strategy

5 x 7 means five groups of seven smileys