YEAR 10 · HIGH SCHOOL MATHEMATICS
Measurement and scale.
Model composite solids, connect similarity factors and evaluate measurement decisions.
8 lessons3 practice tests
Work through the topic
Learn the method, follow the examples, then try the worksheet.
- 01
Surface area of composite solids
Calculate only the exposed skin when familiar solids are joined.
- 02
Volume of composite solids
Add non-overlapping component volumes and subtract actual cavities.
- 03
Proportion/scaling of objects
Use corresponding lengths to connect a scale drawing and its real object.
- 04
Related length/area/volume factors
Connect the length, area and volume factors of similar figures.
- 05
Measurement error
Describe rounded measurements using bounds and compare their errors.
- 06
The effect of rounding and repeated approximations
Retain exact quantities and guard digits until the final calculation.
- 07
Practical design models
Build a practical measurement model and compare feasible designs.
- 08
Evaluating assumptions and suitable precision
Evaluate assumptions and report only precision supported by a model.
AFTER THE LESSONS
Review & tests Topic review
Revisit the key ideas, then choose a practice paper.