Resources: lots of plastic straws!
A fully differentiated Geometry project on making optimum straw aeroplanes. Easy to carry it out in any way you wish. Can do it over 2 lessons or do it over 5. Three levels of difficulty are indicated by the colour of the straws in the slides.
Different difficulties assume different understanding of various topics. Use the example to see what knowledge is assumed.
Easy (green): Measurements, circumference (not calculating), area of rectangles, Mean
Medium (yellow): above plus area of circles and area of triangles
Hard (red): above plus volumes of cylinders and areas of trapeziums.
Recommended for 11 to 14 year olds at the end of the year.