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Beginning Multiplication

This presentation addressing the concept of multiplication for second or third graders. It connects addition and multiplication to teach the concept using a previously known concept

Kelly Schiess

on 19 April 2010

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Transcript of Beginning Multiplication

Multiplication Adding:
We have already talked about adding in class.
3 apples plus two more apples equals 5 apples. Adding groups
If Katie has two apples, Adam has two apples, and Eric has 2 apples
How many apples do they have together?
Adding Groups
3 groups of 2 apples equals 6 apples
3 (groups) x (of) 2 (apples) = 6
3 x 2=6 3 Groups of 2 apples = ? 3 groups of 2 apples = 6 apples
3 x 2 = 6 2 groups of 3 pencils
3 x 2 = 6
2 x 3 = 6

How are these the same? Multiplication goes both directions
3 x 2 is the same as 2 x 3
both equal 6 Try this problem:
Jill has 4 groups of 2 apples.
How many apples does she have?
Draw a picture to help you solve the problem Jill has 4 groups of 2 apples.

2 + 2 + 2 + 2 = 4 x 2 =8

Here are tallies to show the groups

Full transcript