3 out of 3
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Can you draw perpendicular lines without using a protractor? Investigate how this is possible.
1 out of 3
Investigate how avalanches occur and how they can be controlled
2 out of 3
Explore the shape of a square after it is transformed by the action of a matrix.
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These pictures were made by starting with a square, finding the half-way point on each side and joining those points up. You could investigate your own starting shape.
Investigate factors and multiples using this interactive Excel spreadsheet. Use the increment buttons for experimentation and feedback.
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Investigate the sequences obtained by starting with any positive 2 digit number (10a+b) and repeatedly using the rule 10a+b maps to 10b-a to get the next number in the sequence.
