Your child aces Tuesday's Ting Xie, then blanks on the same words two weeks later. Sound familiar?
You're not alone. This is the most common frustration Singapore parents share about Chinese learning — and it's not your child's fault. It's how their brain is designed to work.
The Forgetting Curve Is Real
In 1885, psychologist Hermann Ebbinghaus learnt lists of nonsense syllables by heart and timed how long it took to relearn them. One day later he needed about two thirds of the original effort; after six days, about three quarters (his results). His "forgetting curve" came out the same shape when it was repeated in 2015 (Murre and Dros).
For Chinese vocabulary, the effect is even more pronounced. Unlike English words that share Latin roots and visual patterns, Chinese characters are largely arbitrary — each one is its own little picture that must be memorised independently.
When your child crams 20 words the night before Ting Xie, they're loading everything into short-term memory. It works for the test. But without reinforcement, those words fade within days.
How Spaced Repetition Works
Spaced repetition is the antidote to cramming. Instead of reviewing everything at once, you review each word just before you're about to forget it.
Here's the key insight: every time you successfully recall a word at the point of forgetting, the memory gets stronger and lasts longer. The intervals between reviews grow exponentially:
- Day 1: Learn the word
- Day 3: First review
- Day 7: Second review
- Day 14: Third review
- Day 30: Fourth review
- Day 60+: The word is locked in long-term memory
After 5-6 successful reviews, most children can recall the word months later without any additional practice.
Why It Matters for MOE Chinese
The MOE Chinese syllabus is cumulative. P3 builds on P2 vocabulary. P4 builds on P3. By the time your child reaches PSLE, they need roughly 1,500 characters.
If they're cramming and forgetting each term, they're essentially relearning the same words every year. Spaced repetition breaks this cycle — words learned in P1 stay learned through P6.
Putting It Into Practice
The easiest way to use spaced repetition is with digital flashcards. Apps like Anki have a built-in spaced repetition algorithm that automatically schedules reviews at the optimal interval for each word.
The trick is consistency over intensity. Ten minutes a day beats an hour the night before the test, every single time.
Your child doesn't need to study more. They need to study smarter.