Hearing your munchkin's first words is magical. Hearing her 1,000th word can be even more fun. Record it all courtesy of My Baby Compass, a series of books designed to help parents record their child's development through a series of checklists. Written by Kathy Gruhn, a speech pathologist who worked with United Cerebral Palsy, the books aim to empower parents to indentify and track developmental milestones. They're also chock full of fun tips & fast facts like this one:

How many times does a baby need to hear a word before he recognizes it?

1. 20 
2. 75  
3. 200
4. 800

Got a guess? Answer our Facebook quiz - we'll answer the question Friday, Oct 14. In the meantime, you can check out & purchase the My Baby Compass series (birth to 2 years, 2-4 years, 4-7 years) here.