# Negative Numbers

## Piñata Fever

In this math game you’re the host of a crazy piñata party. To keep the party pumping you need to keep the candy jar topped up – and the only way to get more candy is by smashing piñatas!

These colourful, goody-stuffed toys descend slowly from the top of the play area. You must move quickly to intercept them by adding and subtracting positive and negative numbers. Once in position, smash open the piñatas to release their tasty treats! Think fast because if you run out of candy, the party’s over!

## Pearl Diver

Navigate the number line while diving among shipwrecks and sunken ruins. Will you find a pearl, or an old boot? Watch out for the electric eel! Pearl Diver teaches properties of numbers, how to plot numbers, how to visualize quantity on the number line, how to order numbers, and how to use the number line as a visual model for mathematical operations.

## Slopes: That's a Bit Steep! (2002)

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Key concepts explained: horizontal and vertical lines, positive and negative slopes, calculating a slope by measuring its rise and run, and calculating a slope by using two points on a coordinate plane.

Middle
High
Length:
00:24

## Integer Operations: Into the Negative Zone, Part 2 Multiplying and Dividing (2002)

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Our young presenter ventures fearlessly into the negative zone to learn how to add, subtract, multiply and divide positive and negative numbers. A variety of highly visual tools are presented in a fun format to help students make sense of the rules for integer operations. Plugs removed from a wood block represent positive quantities and the remaining holes, negative quantities.