Maths+Strategies

http://www.mathtrain.tv/ http://www.teachertools.co.nz/lessons-more/ http://www1.teachertube.com/ http://sketchup.google.com/ http://wildaboutmath.com/2007/12/01/mathcast-2-quick-multiplication-of-two-2-digit-numbers/ Check these maths animations out made by Room 10 students.
 * Maths** **Modelling** **Examples.**

Made by Sean.

media type="custom" key="4929627" Made by Lily

Made by Jaymie media type="custom" key="4351595" media type="custom" key="8845162" Look at my division animation.

This week students have been changing division sums to multiplication sums.

media type="custom" key="9611662" Example:

12 divided by 3 is the same as 12=3 x ? 15 divided by 5 is the same as 15=5 x?

media type="custom" key="6363717" Students have been learning how to solve sums such as 3 x 356 by breaking up 356 into hundreds 300, Tens 50 and Ones 6.

Strategies

Example

I want to know what 8X7 equals. So try 7X7 or 9X7. If you use 7X7, you work out square numbers. Square numbers are like this: 2X2

3X3
4X4

5X5
and so on

7X7=49. If you use 9X7, think of 10X7. 10X7=70. -7=63

The answer you have is 56

7X7=49 9X7=63 2X7=14 4X7=28 8X5=40+16=56