Number, Fractions and Proportion Repair Library
When later Mathematics breaks down, the useful repair may be a specific relationship in number, fractions, decimals, percentages, ratio, rate or proportion—not a wholesale return to earlier school years.
- Rebuild magnitude and equivalence when notation is masking meaning.
- Use visual or concrete representations where part-whole relationships are unclear.
- Distinguish additive from multiplicative comparison.
- Reconnect unit rate and scale to current problems.
- Verify the repair with a different-looking question.
The detailed repair catalogue and routing rules are private; this page describes the reader-facing teaching principle.