Similarity
Why this, why now
In this unit, pupils investigate the effect of an enlargement on the perimeter and area of a 2-D shape and the volume of a 3-D shape.
Prior knowledge requirements
- Ardaydu waa inay yaqaanaan aasaaska maadada.
- Ardaydu waa inay awoodaan inay raacaan tilmaamo fudud.
Unit 17 / 21
Similarity
In this unit, pupils investigate the effect of an enlargement on the perimeter and area of a 2-D shape and the volume of a 3-D shape.
12 lessons- Checking and securing understanding of congruent triangles (SAS)
- Problem solving with similarity
- Using the scale factor for enlarging an area
- Checking and securing understanding of direct proportion in context
- Using the scale factor for enlarging a volume
- The effect of enlargement on the area of a shape
- Problem solving with advanced similarity knowledge
- Checking and securing understanding of congruent triangles (SSS)
- Checking and securing understanding of congruent triangles (RHS)
- Checking and securing understanding of congruent triangles (ASA)
- The effect of enlargement on the perimeter of a shape
- The effect of enlargement on the volume of a 3D shape