Which One Doesn’t Belong

Website dedicated to providing thought-provoking puzzles for math teachers and students. There are no answers provided as there are many different and correct ways of choosing which one doesn’t belong.

Estimation 180

Building number sense one day at a time through activities you can do at home. There are lessons for grades 4-8, in addition to daily estimation activities for the family.


Estimation meets mystery: wonder what number is represented by an image. Clues require math to narrow possibilities. Students use estimation skills to solve the mystery and find the missing number.

Turner’s GOW

Graph of the Week is one way to improve math literacy skills. Students will become sharper, analytical thinkers in today’s world analyzing current-day graphs.

ASAP Science

ASAP Science YouTube video series on a mission of “Making science make sense.” Check out the Periodic Table Song, challenges such as which is better Paper Towels or Hand Dryers.


Vanessa Hill is your friendly neighborhood science educator and psychology specialist. She makes videos about your brain, body and behavior to help you better understand yourself and the world.

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Access grade level curriculum and learn to code with support. Students’ critical and creative thinking skills improve as they solve lessons on their own or in collaboration with others.

CDC: Solve The Outbreak

Play Solve the Outbreak on the CDC website. In this interactive app try becoming a Disease Detective. Travel the world chasing outbreaks like ones real-life CDC Disease Detectives help fight.

It’s Okay To Be Smart

Solve mysteries like How an Igloo Keeps You Warm and Why Salt & Pepper Ended Up On Every Table.This channel has videos sorted into different science topics, most 5-10 minutes.

Physics Girl

Physics Girl is a YouTube channel created by Dianna Cowern that adventures into the physical sciences with experiments, demonstrations, and cool new discoveries. Most videos are between 5-10 minutes long and begin with a question or riddle. These would be great to enhance science lessons or share to stimulate curiosity.