With four levels of difficulty, this online jigsaw puzzle is a great brain-teaser for students of any age.

It's a number conga line! Kids flex cognitive skills and learn numbers with this puzzle.

Solve a picture puzzle and practice math skills at the same time in this online puzzle showing our favorite Brainzy characters.

Puzzles are a great way to work on math skills like shapes and organizing -- and this online puzzle is a great tool for kids of all ages and skill levels.

Kids must piece together this artsy puzzle, featuring painter Floyd and his muse.

Kids learn all about taking away in this interactive puzzle with a subtraction image.

Kids must compose a square from smaller shapes in this tangram game.

Students click on all the things that look wildly out of place in this classroom scene.