When was the last time you put together a good old fashioned cardboard puzzle? You should do it and your kids should too. Puzzles help kids develop spatial skills - which they need for tackling STEM subjects. Building puzzles also improves short-term memory as well as visual perception and coordination. And since you use both sides of your brain when you build puzzles, you pretty much get a full-brain workout. Yet at the same time, it can be quite relaxing and therapeutic. A relaxing workout? We’re in!