1. Chloe S. – Notre Dame Academy Elementary - Kindergarten
Key Helper
Chloe S. – Notre Dame Academy Elementary - Kindergarten

2. Think It!
I wanted to solve the problem of a key left in the front door of a home because my parents do this a lot.
The Key Helper is made of wood and makes a loud sound if you leave it in the lock.

3. Explore It!
Keys were first invented 6,000 years ago in ancient Babylon and Egypt.
In ancient Rome, keys were made of iron and bronze.
Modern “flat keys” were first made by Linus Yale, Sr and Jr. in mid 1800s.

4. Sketch It!

5. Sell It!
Everyone will want the Key Helper because families will always be safe from strangers.
NEVER again forget your key in the front door of your home!