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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
Have you seen...
Activity 95 - Coding machine
The Enigma machine was used in the second world war as a coding machine to keep messages secret. You can make a simple coding machine out of K’NEX, as shown opposite.
The top section slides backwards and forwards, to allow you to change the code as often as you want.
There are more photos showing how to build this model in the Guide.
Q1. Can you use your coding machine to send secret messages to a friend?
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