For use with the NRICH activity at: https://nrich.maths.org/6919 Click on the green flag to reset the drawing and use the buttons to control the pen. Alternatively, press SPACE to move forward and T to turn. A good way to start is to take a number sequence that you like, for example square numbers or the 3 times table. Just keep the ones (units) of those numbers, for example 1,4,9,6,5,6,9,4,1,0,1,4 etc. or 3,6,9,2,5,8,1,4,7,0,3,6 etc. You may notice that with these, and perhaps your own sequences, they go to a 0 and then repeat. For this challenge, you just need the numbers that go as far as just before the zero, for example 1,4,9,6,5,6,4,1 or 3,6,9,2,5,8,1,4,7. Now to draw ... Using squared paper and starting somewhere in the middle, take each of the numbers in turn to tell you how long to draw the line and turn a right angle to the left after you've drawn each line.
