## Sunday, October 21, 2012

### Mysterious Multiplication

This week we will be learning about the Mystery of Multiplication.

When we were young, we only had to memorize our multiplication facts, and we usually did not do that until 4th or 5th grade. Now, not only do third graders have to memorize their facts, they also have to be able to show why.

They can not just say that 3 x 4=12. They have to be able to prove that 3 x 4 = 12 because if you have 3 groups of 4 there are 12 total or if you add 4 three times you will get to 12 or if you count by four three times you will get to 12. They must be able to Prove It Not Just Choose It.

Here are the notes that should be in your child's notebook on Monday:

This is a graphic organizer that really helps show the Meanings of Multiplication:

Here are some examples of the tasks students will be asked to complete during class:

This is the PowerPoint Presentation I will use in class throughout the week:

### The Meaning of Multiplication

Here are some of my favorite videos that really illustrate the Meaning of Multiplication: