Topic: Graphs and Graph Theory

1. Stock the Shelves
http://www.mrnussbaum.com/stockshelves.htm

Maths topic: Coordinate Plane, Graphing

• The objective is to put the soda bottles in their correct places on the coordinate plane.
• Pupils can learn to read coordinates (in the Cartesian plane) with this activity.
• Alternatively, it can be used for reinforcement and practice.

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2. Algebra vs Cockroaches
http://hotmath.com/hotmath_help/games/kp/kp_hotmath_sound.swf

Maths topic: Algebra, Graphs (Secondary)

• The objective is to kill the cockroaches that run across the grid. To do that, pupils enter the equation.
• In Round 1: The activity can be used to introduce terms like y-intercept – as the first part requires pupils to able to read the y-intercepts of lines
• In Round 2: Linear equations passing through the origin are introduced. Pupils learn how to find gradient of a straight line. However, it’s only limited to positive gradients; however, gradients could be whole numbers or fractions.
• In Round 3: Pupils apply and combine what they learnt in rounds 1 & 2 to write down equations of straight lines.
• Alternatively, the activity can serve as a practice.

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3. Planarity
http://www.planarity.net/#

Topic: Graph Theory [Upper Secondary/JC]