Derive and illustrate properties of triangles, quadrilaterals, circles, and other plane figures [for example, equal lengths and angles] using appropriate language and technologies
| 1. | Shapes, Anyone? - area of circle in a square | |
| 2. | Triangularea- area of triangle in circle | |
| 3. | No Sphere - surface area of a sphere | |
| 4. | Circular Logic 9 - chords of the same length | |
| 5. | Circular Logic 8 - perpendicular to chord through centre | |
| 6. | Circular Logic 7 - radius perpendicular to chord | |
| 7. | Circular Logic 6 - radius through the midpoint of a chord | |
| 8. | Circular Logic 4 - identify correct circle geometry theorem | |
| 9. | Circular Logic 3 - angle at circumference of circle | |
| 10. | Circular Logic 2 - angle in a semicircle | |
| 11. | Circular Logic 1 - identify correct circle geometry theorem | |
| 12. | Around in Circles 12 - circle geometry | |
| 13. | Around in Circles 7 - circle geometry | |
| 14. | Around in Circles 6 - circle geometry | |
| 15. | Around in Circles 5 - circle geometry | |
| 16. | Around in Circles 4 - circle geometry | |
| 17. | Around in Circles 3 - circle geometry | |
| 18. | Around in Circles 2 - circle geometry | |
| 19. | Around in Circles 1 - circle geometry | |
| 20. | Another Dimension 3 - name cube from description | |
| 21. | Duck Dimensional Diversions 7 - polygons and polyhedra, true or false | |
| 22. | Swiss Formula 5 - relationship between vertices, edges and faces | |
| 23. | Careful Categorising 2 - cone/polyhedron | |
| 24. | 3D Dreams 2 - faces and vertices of a cube | |
| 25. | Making The Cut - truncating a cube | |
| 26. | 3D Dreams 1 - faces and vertices of a cube | |
| 27. | DJ Icosidodecahedron - faces of Archimedean solids | |
| 28. | DJ Truncated Octahedron - faces of Archimedean solids | |
| 29. | DJ Great Rhombicosidodecahedron - faces of Archimedean solids | |
| 30. | DJ Snub Dodecahedron- faces of Archimedean solids | |
| 31. | DJ Lesser Rhombicosidodecahedron - faces of Archimedean solids | |
| 32. | Cubin' Cubes 6 - corner unit cubes in larger cube | |
| 33. | Cubin' Cubes 5 - centre edge unit cubes in larger cube | |
| 34. | Cubin' Cubes 4 - unpainted unit cubes in larger cube | |
| 35. | Cubin' Cubes 3 - unpainted centre face unit cubes in larger cube | |
| 36. | Cubin' Cubes 2 - number of painted faces on unit cubes making larger cube |