Magnetic number and letter sets give kids the tools they need to visualize words and figure out math equations. Here are the best on Amazon.

The highly rated Crayola 3-in-1 Magnetic Double Easel with Letters and Numbers is on sale for only $29.99 (50% off) at the Walmart website right now!

Magnetic Letters Taught Us More Than How to Spell The toy was popular, but researchers wonder if it affected children's brains.