What age range are these educational toys best for?

The picks here span roughly 18 months through 12 years. LeapFrog's My First Learning Tablet skews to toddlers 1–3, the LeapTop Touch and marble runs hit the 2–6 sweet spot, and STEM kits like ThinkFun Gravity Maze and Brain Flakes are aimed at 5–12 with real replay value into the teen years.