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◊ 30 traditional K'NEX challenges
◊ 58 Real-life K'NEX challenges
- Activity 2 - K'NEX connectors
- Activity 3 - Five sizes of K'NEX triangle
- Activity 4 - Learning about triangles
- Activity 30 - Counting rods and connectors
- Activity 38 - Costing with K'NEX
- Activity 44 - Estimating with K'NEX
- Activity 52 - Ten-pin skittles
- Activity 67 - Weighing scales
- Activity 74 - Speed investigation
- Activity 82 - Organisation chart
- Activity 90 - Four-sided spinner
- Activity 95 - Coding machine
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Activity 90 - Four-sided spinner
Make the four sided K’NEX spinner opposite.
The spinner is used by spinning it, and then waiting until it stops on one edge.
Q1. Predict how often the spinner will show a 2 if you spin it 20 times. Now actually spin it 20 times. If your prediction is wrong, can you explain why?
Q2. Make a second four-sided spinner. How many different ways can you achieve a total of 5 with two spinners? What is the probability of you getting 5 if you spin both spinners at once?
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