JHS3 Mathematics · Term 3, Week 6

Position and Transformation

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
Position and Transformation (3.3)
Content standard
B9.3.3.1 - Demonstrate understanding of how to perform an enlargement on a geometrical shape given a scale factor and describe the properties of the image under the transformation (i.e. congruence, similarity, etc.)
Indicator
B9.3.3.1.2 - Understand enlargement and identify real-life situations involving enlargement.
Suggested placement
Term 3, Week 6 (Week 30 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. 210

Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1. Draw an enlargement of shapes using a given scale factor.
i. State the single transformation that maps triangle P onto Q.
ii. State the single transformation that maps triangle P onto R.
Figure from the jhs3 mathematics curriculum, printed page 210
iii. Investigate the characteristics of enlargements under the following conditions of scale factor:
• if the scale factor (K) is negative
• if the scale factor (K) is greater than 1 or less than -1
• if the scale factor (K) is between -1 and 1 (i.e., fraction)
E.g. 2. Using an object, and its image, determine the scale factor in a transformation?