Develop and use the formulas to find the circumferences of circles in terms of the diameter d or radius r: Circumference of a circle = pi x d Circumference of a circle = 2 x pi x r

1. The Flying Frenchman - calculate number of wheel rotations given length of journey and wheel diameter
2. The Secret Formula 2 - select correct expression for the perimeter of circle and calculate
3. Pond-er with Percibald - calculate circumference given radius
4. Go Go Grand-mobile - perimeter of circle
5. Wheelies! - perimeter of a circle
6. Knights Round The Table - perimeter of a circle
7. The Point of the Circle is... 2 - perimeter of a circle
8. The Point of the Circle is... 1 - perimeter of a circle
9. The Space Race 3 - perimeter of a circle
10. Knights Round The Table 2 - perimeter of a circle