20 Questions: Can You Stump the Machine?

Use the 20 Questions game to practice math vocabulary and number properties! Project a hundreds chart and hand one out to learners. Ideally, give them counters (beans would work well) to mark off the chart so you can play multiple times....

A video posits the question of how to identify the one poisoned bottle of wine from 1,000 bottles by getting 10 rats to drink the wine. Hint: Binary numbers become very useful in this situation.

Your rich uncle just died and left all of his money to you. However, your evil relatives want some of the prize. Luckily, your uncle taught you everything you need to know about riddles, and has hidden his money. Can you solve the riddle...

You've been abducted by aliens! The good news: they don't eat collaborative and logical beings. The bad news: You need to prove that you are capable of working together with your fellow captives to solve a logic riddle. Enjoy a video...

Is it a coincidence that fingers are called digits? Did you know that one finger can represent one digit or even six parts? Watch a somewhat confusing video that explains the possibilities of counting to numbers higher than 10 on your...

Hey, diddle diddle. Here's a great riddle. But you need to use conditional probability, not a fiddle, to help you pick the right frog in this riddle.

A vicious airborne virus is about to leak out of your lab, and it is up to you to stop it. Once entering a contaminated room, you destroy it, preventing you from leaving the room the same way you entered. Challenge your class to solve...

Do not let the pressure get to you. The first lesson in a unit of 22 introduces the concept of air pressure. Using background knowledge, the resource gives teachers the information they need to discuss how people measure air pressure and...

It's important to be grateful. Budding techies apply conditionals and loops in the Scratch coding language to build thank you projects for the computer science gurus and others who have helped them throughout the unit.

A Rube Goldberg machine does not really look like it would make work easier. Introduce your class to Rube Goldberg with a resource that shows how his inventions make simple tasks harder to complete.