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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 44 - Estimating with K'NEX
Build the two-level tower shown opposite:
Q1. How many yellow rods and double-purple connectors would you need to add a third level to the tower?
Now build the tower to check whether you were right. The process of thinking how many extra rods and connectors are needed is called "estimating".
Q2. Estimate how many blue rods and white connectors you would need to build a large K’NEX square which contains 9 smaller squares.
Q3. Estimate how many of each rod and connector you would need to build a roundabout. Check your estimates by building the models, and counting the rods and connectors you have used.
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