Test

Why heuristics matter

PSLE problem sums rarely fall to memorised formulas. Students must choose a heuristic—a thinking strategy—to unlock the question.

Draw a model: Bar models reveal hidden relationships and part–whole structures.
Work backwards: Start from the final condition when questions give results after changes.
Guess & check (systematically): Vary one quantity at a time to converge quickly.
Restate the problem: Paraphrase long sentences into math statements.
Look for patterns: Useful for sequences, calendars, and factors/multiples.
Make a systematic list: Ensures you don’t miss cases in arrangement/combinatorics.
Before–After concept: Track transfers and comparisons with a before/after table.

Pick three questions per night. For each, write the chosen heuristic and one sentence explaining why it fits. Over time, this builds metacognition.

Tip: Keep a personal list of solved “types” so recognition becomes automatic.