Built on how learning actually sticks
Four well-studied ideas do the heavy lifting — and we're honest about the edges.
Varied practice
The same idea in many costumes builds flexible understanding, not a single brittle memory.
Spaced retrieval
Concepts return days later — day 1, 3, 8, 21, 55 — so they stick instead of fade.
Self-explanation
Teaching Lume back is the protégé effect: explaining is where the learning happens.
Transfer is the test
Spotting the idea off-screen, in the real world, is the only proof that counts.
Where the evidence stops
These mechanisms are well supported in the learning-science literature. We have not run a peer-reviewed trial of this specific product with two-to-seven-year-olds, and we won't claim outcomes we haven't measured. We build on the science, report exactly what your child does, and let you judge.