Look over your explanation about how your contraption works and begin to improve on it. Use the poster from Tuesday which is your success criteria. You need to write it out again.
1) Check if it makes sense or not. If not change it.
2) Have you written enough.
3) Check your sentences. Do they have capital letters and full stops? Are your sentences written in the present tense?
4) Presentation- neat handwriting please and drawing.