Nelson Education > School > Mathematics K-8 > Mathematics 2 > Teacher Centre > Surf for More Math > Chapter 4 Lesson 5

Surf for More Math

Lesson 5 - Adding and Subtracting Sides

Use this interactive activity to encourage students to have fun on the Web while learning about adding and subtracting sides. Students can try this activity on their own or in pairs.



Add with multiple addends.

Solve a problem by using objects.


Instructions for Use

Pattern Blocks lets students solve addition and subtraction problems using objects.


To use Pattern Blocks, click on a shape and drag it onto the workspace. Select a shape by clicking on it. Once selected, the shape can be moved to any location on the workspace. Click on the other tools on the top panel to select and drag, rotate, find more information about the shape, or to clear the workspace. To remove a shape, drag it to the recycling bin. Have students solve addition and subtraction problems with the pattern blocks.