This site has online classes for kids ages 3 to 18, on every topic imaginable. Classes range from one-time to multiweek or semester sessions. It’s the perfect way to give your kid a cheap and low-stakes introduction to a topic.

https://outschool.com/

Pioneers of digital learning, Khan Academy started when Salman Khan’s cousin needed a little extra help with math. Now it has courses covering a wide range of grades and school subjects. It’s safe for kids, effective, and free.

https://www.khanacademy.org/

With quirky videos at a rapid-fire pace, Crash Course covers numerous subjects and manages to convey important info and deep insights in the shortest possible time.

https://thecrashcourse.com/

A podcast that’s a blast for elementary kids, with fascinating stories drawn from scientific research and technology.

https://www.npr.org/podcasts/510321/wow-in-the-world/

Stunning imagery to explore our planet from the comfort of home.

https://earth.google.com/web/

A great gift from the government to families of 4th graders. Sign up online and get a free parks pass!

https://everykidoutdoors.gov/index.htm

There are more weird and wonderful museums than you can imagine. Find a new one to explore.

https://en.wikipedia.org/wiki/List_of_museums_in_the_United_States