Why should practice become harder only after the current work is becoming secure?
Practice that is permanently easy gives little new information, while practice that is consistently beyond reach can create noise rather than useful learning. Performance data can help keep the task closer to the learner’s current needs.[1]
How Toku uses this
Toku can raise difficulty after consistently strong results rather than treating one correct answer as proof that a skill is secure.
What research shows
Formative assessment research supports using evidence of current understanding to modify subsequent learning activity.[1]
Mastery-learning evidence supports the broader idea of checking security and responding before moving on, while also showing that implementation details matter.[2]
Feedback is more useful when it can redirect future activity rather than merely report a result.[3]
Why this can matter for your child
Practice can keep stretching your child while reducing long runs of work that have already become too easy.
The aim is simple: use what your child just showed to make the next practice choice more sensible.
Questions this helps answer
- adaptive difficulty maths
- personalised maths practice
- why practice gets harder
- how adaptive learning works
References
- Paul Black & Dylan Wiliam (1998). Assessment and classroom learning. Assessment in Education.
- Chen-Lin C. Kulik, James A. Kulik & Robert L. Bangert-Drowns (1990). Effectiveness of mastery learning programs: a meta-analysis. Review of Educational Research.
- Education Endowment Foundation (2026). Feedback. Teaching and Learning Toolkit.