About ThinkLeo

Friendly, printable learning for young children, made for the grown-ups who teach them.

ThinkLeo is a library of original printable worksheets for children from Early Childhood to Middle School. Every worksheet is designed to be printed at home or in class, done with a pencil and crayons, and checked in minutes with its answer key.

Our mascot is Leo, a curious giraffe who loves books. You will find him cheering younger children on across our worksheets; for older children he steps back to a small badge, and Middle School sheets have a clean, grown-up look.

How ThinkLeo is different

We would rather have a smaller library that is carefully sequenced than thousands of loose PDFs. Every worksheet is written for its place in a learning path, has one clear goal, and comes with what a grown-up needs to check it. All of our worksheets, pictures and characters are made by us.

What you will find

Who it is for

ThinkLeo is for parents, homeschooling families and teachers. Grown-ups create the account, choose the worksheets and keep track of progress. Children do not need their own accounts.

Tools for grown-ups

Our promise on privacy

We collect as little as we can, especially about children. A child’s profile holds a nickname rather than a full name, and a birth month rather than a full date of birth. You can delete it at any time. Read our Privacy Policy for the details.

Say hello

We would love to hear what your children enjoy and what you would like us to make next. Write to us at hello@thinkleo.org or visit our contact page.