Today’s puzzles require you to roll up your sleeves and wrestle with a square piece of paper.
Because this is the best way to become brilliant at a maths. Or so concludes a recent study by developmental psychologists at Surrey, Toronto and Maryland universities.
The report – a meta-analysis that combined the results of 29 separate studies involving almost 4,000 children – says that activities that train spatial reasoning like paper folding, building with blocks, and solving three-dimensional puzzles are by far the most effective way for young people to raise their maths performance.