This book is “for babies” but it’s probably just about right for a 3yo. It is the best “STEM for babies” book I have ever seen, maybe the only one I really like: https://computerengineeringforbabies.com/
This book is “for babies” but it’s probably just about right for a 3yo. It is the best “STEM for babies” book I have ever seen, maybe the only one I really like: https://computerengineeringforbabies.com/