What has teeth but no mouth? Find out the answer to this and more riddles in this Riddles and Codes worksheet.

Before you dress up and go trick-or-treating, try a problem-solving challenge full of cool Halloween costumes!

To complete this worksheet your first grader will need to match the different animals with their homes.

Challenge your third grader to this heart matching game! Beware: It's more difficult than you'd think!

This worksheet will help your first grader with his sorting skills. He will need to carefully look at the pictures and decide where the missing items go.

Try your luck with this picture-based sudoku for kindergarteners and first graders!

Prepare for the school day with this engaging sudoku puzzle for kindergarteners and first graders!

Gather your supplies for the start of the school year with this sudoku for first, second, and third graders!

Solve a sweet sudoku puzzle in this Valentine’s Day-themed worksheet for first and second graders!

First and second graders will LOVE finding the missing numbers in this adorable Valentine’s Day math puzzle!

Challenge learners with a delicious game of Pie Picture Sudoku with this engaging cut-and-paste worksheet!

Give learners an extra delicious challenge with level 2 of this Pie Picture Sudoku worksheet!

Have some fun with vocabulary words using a Valentine's Day word scramble for first, second, and third graders!

Teach your 1st grader about bees with this fun fact worksheet. Play Sudoku to challenge her logic puzzle skills!

Solve the mystery of who's who in this puzzle full of spooky, cute, and creative Halloween costumes! 

Use your logic skills to out what each kid at the costume contest dressed up as! 

Your students will need their addition facts and a bit of logic to solve this KenKen® math puzzle.

What do eyeballs, pumpkins, and candy corn have in common? This medium level puzzle will have your students scratching their heads. It's nothing they can't handle!

Crack the code in this printable phonics worksheet all about words ending in -ng and -nd.

It's never too early to introduce your student to Sudoku, especially when it involves Halloween cupcakes! Challenge your student with this easy game of Sudoku.

This hard level worksheet will allow your child to enjoy Halloween pictures while challenging her to solve the Sudoku puzzle!

Celebrate the wackiness of April Fools' Day with your little learner, and find all the things that are wrong with this picture.

Put your child's cartographic skills to the test by having him assemble this puzzle that features the 50 U.S. states.

Practice addition and subtraction within 20 with this sweet Valentine’s Day math puzzle!