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Playlist: Math

Place Value (Beyond Base 10)

Place value is something we cover in elementary school. It seems simple, but I’d wager that very few adults really understand the topic. I sure didn’t until I worked with non-base-10 number systems in college. Your students can get a taste of this mind-boggling experience by imagining what it would be like if we didn’t have the number 9. What would each digit represent then?

Grouping Quadrilaterals In A Hierarchy

Can we classify quadrilaterals like we classify living things?

Finding The Volume of Laptops

How has the volume of laptops changed over time? You know you want to check out how huge those first versions were!

What Does it Cost to Fill a Car with Other Liquids

Is gas actually that expensive? What if we filled a car up with… orange juice?

Math Curiosity: Odds & Squares

Why does the sum of the first 5 odds also equal 5 squared?

What Do Mean and Median Mean?

When will mean and median give us different results?

Fraction Puzzlers: Add and Subtract Fractions To Reach A Number

You only have six digits to form three fractions. Can you combine them to get to 0?

A Visual Guide To Dividing By Fractions

Have you ever wondered what it looks like to divide by a fraction, man?

A Nutrition-Based Math Project

Let’s create a parody ad attacking a surprisingly calorie-rich meal.

Furnishing A Hotel

Design and furnish hotel rooms on a budget. Real math, real constraints, real decisions. Then pitch your hotel to investors.

An Inductive Exploration Of Geometry

★ Bookmarked • For Teachers

With inductive thinking, students will work from parts to whole, discovering big ideas along the way!