JHS3 Mathematics · Term 2, Week 10
Shapes and Space
Full lesson notes coming
Notes for this lesson are being prepared. The curriculum details below are complete and ready to use for your planning.
Curriculum details
- Strand
- Geometry and Measurement (Strand 3)
- Sub-strand
- Shapes and Space (3.1)
- Content standard
- B9.3.1.1 - Apply the properties of angles at a point, angles on a straight line, vertically opposite angles, corresponding, angles to` solve problems.
- Indicator
- B9.3.1.1.1 - Derive the formula for calculating the sum of angles in any polygon and use this to calculate the value of missing angles in polygons
- Suggested placement
-
Term 2, Week 10
(Week 22 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
- Curriculum reference
-
Mathematics, Common Core Programme (JHS1-JHS3), 2023, p. 196
Transcribed from the official NaCCA publication. Check this page against the source.
Exemplars (from the NaCCA curriculum)
E.g.1. Identify and name the various polygons such as a triangle, quadrilaterals, pentagons, and hexagons, etc.
E.g.2. Derive and use the
formula (n - 2) × 180 ° and calculate the value of x (interior and angles of a triangle).
E.g.3. Derive and use the formula (n - 2) × 180 ° and calculate the interior angles of a quadrilateral. E.g.4. Derive and use the formula (n - 2) × 180 ° and
calculate the interior angles of polygons, pentagons, hexagons, etc. (i) Find the value of x and the various angles in the hexagon.