Built on the research

The design is built on peer-reviewed studies and national practice guides. Where the evidence is thin, or a number is a starting value still to be tuned, the plan says so. The reviews set it out:

• How 9-year-olds become fluent in math facts, and how to practice without inducing math anxiety
• Teaching Math Concepts to 9-Year-Olds with Visual Models, Animation and Explanation: Evidence Review
• Making a Math App Genuinely Fun for a 9-Year-Old: Literature Review
• Adaptive Learning, Mastery, Knowledge Tracing and Feedback for a Solo-Built Math App (age 9)
• Competitive Landscape: Math Learning Apps for Ages 8-11 (Grades 3-5)
• Attention, ADHD, and math practice: what the evidence says for a fluency and learning app
• General learning science for Numberkit (how people learn and remember, beyond games and apps)
• How people learn mathematics: evidence from cognition and classrooms, and what an app can take from it
• What Effective Human Teaching and Tutoring Do, and What an App Can Take From Them
• Motivation, Emotion, and Habits in Learning Mathematics
• Calibrating and evaluating Numberkit with very few learners