Playlist: liv
Bad Graphs: Mr. Boid’s Fair Share
Mr. Boid says the juice is split fairly. So why do three kids have empty cups?
How Many Ways: Ratios of 1 to 3
Build ratios of exactly 1 to 3, using each digit just once.
Broken Calculator: Simplifying Fractions
This calculator simplifies fractions with a rule that sometimes works. What is it doing wrong?
Order, Chaos, and the Holiday Season
Let’s write a holiday song about order and chaos!
Polar Weather Report
The North Pole hits -40°. The South Pole hits -60°. Calculate the averages, graph the data, and deliver your polar weather report.
The Heaviest Pumpkin
How heavy is the world’s heaviest pumpkin when measured in Mr. Byrds?
How Many Will There Be? Chip Off The Block
Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.
Create Your Own Operation
The commutative and associative properties are a whole lot more interesting when you apply them to a mathematical operation that you created!
Numerator or Denominator: Which has more power in a fraction?
What do you do with students who already get their fraction operations? Give them a contrived project about recipes or pizza slices? Make them solve annoyingly hard practice problems? Please. Here, we get students thinking in a whole new way, pondering which has more power, the numerator or denominator.
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?
Investigating Cost of Living
Would you save money if you lived in Las Vegas and commuted every day to San Francisco?
A Caffeine Investigation – Part 2
What do people know about the amount of caffeine in common beverages?
What Do Mean and Median Mean?
When will mean and median give us different results?
Percents and Credit Cards
Let’s buy something expensive with a credit card and then make only the minumum payments!
A Visual Guide To Dividing By Fractions
Have you ever wondered what it looks like to divide by a fraction, man?