Season Two, Episode 7: Everyone can learn mathematics with John Mighton

SummaryIn this episode of Chalk Dust, Rebecca Birch and Nathaniel Swain are joined by renowned mathematician, educator and founder of JUMP Math, John Mighton. Drawing on classroom footage from Canadian primary classrooms, John shares the instructional principles that underpin his work: breaking complex ideas into manageable steps, ensuring every student experiences success, and building confidence through carefully sequenced learning.The discussion explores the relationship between motivation and achievement, challenging the idea that some students are simply “maths people” while others are not. John argues that confidence is not a prerequisite for success but a consequence of it. Through examples from lessons on place value and long division, he demonstrates how micro-scaffolding, structured inquiry, and deliberate practice can help students tackle sophisticated mathematical ideas while remaining engaged and optimistic.Throughout the episode, Rebecca, Nathaniel and John discuss the role of challenge, the importance of maintaining students in an optimal learning zone, micro-scaffolding, and how effective teachers create classrooms where every learner can participate in meaningful thinking. The conversation extends beyond mathematics into broader questions about motivation, differentiation, classroom culture and what it means to teach with both precision and humanity.Mentioned resources and explainersJohn MightonJohn Mighton is a mathematician, playwright and educator best known as the founder of JUMP Math. His work focuses on making mathematics accessible to all students through carefully sequenced instruction, micro-scaffolding and high expectations. His books can be found here, here and here. JUMP MathJUMP Math is an instructional approach and curriculum developed by John Mighton. The model emphasises breaking learning into small achievable steps while maintaining conceptual understanding and challenge.The 85% RuleA principle discussed by John suggesting that learners are most motivated when they are successful most of the time, but still experience enough challenge to stretch their thinking. The goal is to avoid both frustration and boredom.Structured InquiryRather than choosing between explicit instruction and discovery learning, structured inquiry carefully guides students towards important insights through well-designed questions, examples and prompts.Micro-ScaffoldingA teaching approach that breaks complex concepts into very small, manageable components so that students experience repeated success while building towards sophisticated understanding.Collective ConfidenceJohn discusses how confidence can become a collective classroom phenomenon. When students repeatedly experience success and see their peers succeeding, expectations about who can learn begin to change.Deliberate PracticeThe idea that expertise develops through carefully designed practice targeting specific areas for improvemen