Students, teach each of the strategies we learned (**multiplication strategies 8**) to your parents or someone older. Poll them to find out which strategy people think is the best one for multiplying two digit numbers.

Students, teach each of the strategies we learned (**multiplication strategies 8**) to your parents or someone older. Poll them to find out which strategy people think is the best one for multiplying two digit numbers.

So we flipped the math class today folks! Your division four teachers wanted to know if you guys really understand some of the useful strategies for multiplication that we’ve been exploring. So we flipped the class. You are the teachers! Show us how to use these strategies!

Here’s some strategies for the uglies! The uglies are the multiplication facts that we sometimes struggle with or are slow to do. The fact is that you really only have to know your 1x, 2x, 3x, 4x, 5x and 10x (… and maybe 7x…) and you can multiply almost anything.

Here’s the big idea:

**GAME CARD: Sqrs 4s 3s CONNECTION**

Here’s two games for practicing your fours and threes, and your squares. Use the strategies you learned to multiply these numbers using mental math.

Rules:

- Three squares in a row in any direction = one point.
- If you get it wrong, the square remains unclaimed. Use a calculator to check answers.
- You can’t re-use squares in a new row of three.

Practice: multiplication strategies 6

STRATEGY: **When multiplying by 5, use 10 and split the product in half. **

STRATEGY: **When multiplying by 10, use 1 and move the product one place value to right.**

A “square” is the product of any number multiplied by itself. When you hear someone say “25 square feet” what it means is that 25 squares of 1 foot x 1 foot fit into the area. We say “square” because a number multiplied by itself can create a square if you draw it out on a grid.

**Here’s two challenges**:

**How many different squares can you fit on this grid multiplication strategies 5a?****How can you use different squares to fill as much space as possible on the grid?**

Great work students! Your performance was fantastic. Everyone played an important role as writers, prop artists, painters, and performers. A special thanks to Michael’s mom who provided and delivered all the cardboard we used to create the props.

We are busy getting ready for the spring performance… Preparing props, practicing our lines, polishing our performances. This year’s intermediate celebration of learning will feature divisions 1-7 **sharing what they’ve learned about Science** in a **“Magic School Bus”** themed performance. Don’t miss it!

The PRODUCT of a number multiplied by itself is called the SQUARE. A number multiplied by itself is called a square because it makes a square. **multiplication strategies 5**

- eg. 1 x 1 = a square with one square
- eg. 3 x 3 = a square with nine squares
- eg. 4 x 4 = a square with sixteen squares