Step Size Science
The learning-science research behind adaptive difficulty pacing — Vygotsky to Bayesian Knowledge Tracing, explained for KS3 parents.
The Zone of Proximal Development: Vygotsky's Idea Behind Every Good Tutor's Instinct
Lev Vygotsky's 1930s Zone of Proximal Development explains why the best learning happens neither at what a child can already do alone, nor far beyond it. Here's what it means for KS3.
The Flow Zone: Why 'Too Easy' Fails Your Child as Quietly as 'Too Hard'
Psychologist Mihaly Csikszentmihalyi's flow research shows boredom and frustration are two failure modes of the same problem — and boredom is the one parents rarely notice.
Scaffolding, Not Spoon-Feeding: What 1970s Research Says About the Right Amount of Help
Wood, Bruner and Ross's 1976 scaffolding study identified exactly how good support should fade as a child's competence grows. Here's what it means for helping with KS3 homework.
Confidence Isn't Built by Praise — It's Built by Real Wins
Psychologist Albert Bandura's self-efficacy research found genuine mastery experiences build lasting confidence far better than encouragement does. Here's what that means for a KS3 student's confidence in maths.
Why Your Child 'Gets It' in the Lesson but Not on the Test: The Interleaving Paradox
A 2010 study found mixed, harder practice produced roughly double the test scores of easy, blocked repetition a day later. Here's why 'it felt easy' during revision is a warning sign, not reassurance.
Carroll's Model of School Learning: Why 'Time Needed' Beats 'Time in Class'
John Carroll's 1963 model of school learning reframed ability as time needed to learn, not a fixed ceiling. It's the quiet idea underneath every mastery-based tutoring system.
What Getting 85% Right Actually Means for Learning
A 2019 Nature Communications paper found learning algorithms progress fastest at roughly 85% accuracy — not 100%. Here's what the 'Eighty Five Percent Rule' says, and why full marks can be a warning sign.
How Does the App Actually Know What's Hard for Your Child? A Parent's Guide to Adaptive Learning Tech
Item Response Theory, Bayesian Knowledge Tracing, and knowledge spaces are the real mechanisms behind adaptive difficulty — not magic, and not the same as each other. Plain-English guide for parents.
The 'Adaptive Learning' Market Shakeout: What It Taught Us About Fake Personalisation
Several edtech companies branded 'adaptive learning' were shut down or absorbed after failing to deliver on the label. Here's what happened, and what it means for evaluating any AI tutor today.
Points, Streaks and Badges: When Gamification Helps — and When It Quietly Backfires
A meta-analysis of 128 studies found tangible rewards for engagement-contingent tasks reliably undermine intrinsic motivation. Here's when gamification helps KS3 learning, and when it works against it.