To day was the colour sensor challenge.
With the colour sensor you have to make it a colour (ours was red) and when it sees that colour it stops. We tested it with coloured paper first.
The next challenge was following the line around the paper I used port view to do the challenge to go straight. What I did is that I used degrees to measure straight (which was 695 degrees) then when I turned it the other way.
This is a degrees’ block
This is a colour sensor