Stars and Spirals
What happens when the turn does not divide 360 neatly
About 40 minutesMediumTurtle and Code
What your child can do at the end
Draw a five pointed star and explain the 144 degree turn
The brief
Turn 72 degrees five times and you get a pentagon. Turn 144 degrees five times and you get a five pointed star, because the turtle goes round the circle twice before it comes home. Change one number and the shape changes character completely.
Skills it develops
loopsvariablespattern recognition
How it is assessed
3 graded challenges inside the lab, and 7 questions at the end that check the idea rather than the clicks. Every attempt is saved, so a retry after a mistake counts as the learning it is.