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rLogo puzzleFiled in Maths on April 25th 05 . rLogo is a Java based implementation of the Logo programming language. I used a simple ‘starter’ in a recent Maths lesson where students had to learn about the exterior and interior angles of a polygon and learn to solve problems along the lines of ‘can a regular polygon have an interior angle of 125 degrees?’. On paper, I had the following questions / tasks…
Challenges included
After some pairs work and some ‘walking through’ solutions (a rare use of ‘kinetic intelligence’ in Maths) I introduced the Logo primitives for forward and right turn, and used the rLogo tutorial page on a projector to draw solutions. I mentioned the ‘repeat 4 [fd 100 rt 90] approach as well. Finally, I suggested that crop circles might be drawn the same way… It all seems to have stuck but it will come as no suprise that people had problems setting up and solving the equation to show that a regular polygon can’t have an interior angle of 125 degrees… This is filed under Maths. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are closed for this post. |
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