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Coding · Ages 10+ · Set A
Tilly draws the poster
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Goal: 15 min
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Remember: A loop draws the sides, and the turns share one full circle of 360 degrees: each turn is 360 divided by the number of sides.

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Tilly and the squareTilly is a little turtle robot with a pen underneath, so wherever she walks a line appears. Mina types forward one hundred, and a straight line grows behind her. She types right ninety, and Tilly turns a quarter circle on the spot, like the corner of a book. A square needs eight lines, forward and turn four times, so Teo says that is a loop job. A loop with range of four draws the four sides and the four turns in three lines. Teo wants a triangle next, but range of three with a turn of ninety leaves a hook that never closes. Walking all the way round is one full circle, three hundred sixty degrees, and the turns share it out. Three turns get one hundred twenty each, and four turns get ninety each.
1
How many sides does this loop draw?
3 sides4 sides90 sides
2
A full circle is degrees.
3
Which shape has a turn of 72 degrees?
trianglepentagonhexagon
4
With fewer sides, each turn has to be bigger.
TrueFalse
5
Mina runs this loop. What does Tilly draw?
A closed triangleA hook that never closesA square
6
A turn of 60 degrees, six times, draws a .
squarehexagontriangle

Match, order and fix

7
Join each turn to the shape it draws when the loop runs enough times.
  1. 1a turn of 90
  2. 2a turn of 120
  3. 3a turn of 72
  4. 4a turn of 60
  • Ahexagon
  • Bsquare
  • Cpentagon
  • Dtriangle
8
Mina makes the square shorter. Put the story in order.
  • Teo says that is a loop job
  • Mina types the square in eight lines
  • Mina writes for with range of four
  • Eight lines become three
9
Mina wants a hexagon, but this loop has a mix-up to fix. What is it?
Range should be 4The forward should be 60The turn should be 60
10
A shape has 8 equal sides. Each turn is 360 divided by 8, so each turn is degrees.
11
Write the numbers Mina changes in the loop to draw a triangle.
12
Draw Tilly's path for forward 100 and right 90, four times.
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