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- 06:31, 13 September 2013 diff hist +508 Puzzles and Projects Circles
- 06:23, 13 September 2013 diff hist +1,649 Puzzles and Projects Circles
- 05:52, 13 September 2013 diff hist -49 The longest chord passes through the centre of the circle →Concept #1 construction of chords
- 05:51, 13 September 2013 diff hist +1,146 The longest chord passes through the centre of the circle →Concept #
- 05:43, 13 September 2013 diff hist -776 Sector of a circle →Concept #10
- 05:37, 13 September 2013 diff hist +51 Conic sections
- 05:34, 13 September 2013 diff hist +532 Conic sections
- 05:32, 13 September 2013 diff hist -1,005 Conic sections
- 05:28, 13 September 2013 diff hist -1 Conic sections →Activity No #
- 05:26, 13 September 2013 diff hist -1,885 Conic sections
- 05:02, 13 September 2013 diff hist +4,581 Conic sections →Concept Map
- 04:02, 13 September 2013 diff hist +553 Conic sections →Activity No #
- 10:40, 12 September 2013 diff hist 0 Quadrilaterals →Teaching Outlines
- 10:38, 12 September 2013 diff hist -10 Quadrilaterals →Activity No #
- 08:42, 12 September 2013 diff hist +21 Sector of a circle →Concept #7 ARC
- 08:40, 12 September 2013 diff hist -55 Sector of a circle →Concept #7 ARC
- 07:36, 12 September 2013 diff hist -146 Sector of a circle →Activity No #1
- 08:49, 10 September 2013 diff hist +4 Sector of a circle →Activity No #1
- 08:47, 10 September 2013 diff hist +26 Sector of a circle →Learning objectives
- 03:56, 4 September 2013 diff hist +1,324 Sector of a circle →Concept #7