Did you sign up to keep your brain in shape this summer — and learn 31 new ideas in the month of July? If so, you’re in great company. Around the world, more than 10,000 of you signed up to take [...]

Want to keep your brain fit this summer — and learn 31 new ideas in the month of July? Do both by signing up below to take the second annual TED-Ed July Challenge! Here’s how it works: Beginning on July [...]