Playlist: luke
How Many Ways: Add Fractions to a Decimal
Three fractions must add to exactly 1.07.
Broken Calculator: Simplifying Fractions
This calculator simplifies fractions with a rule that sometimes works. What is it doing wrong?
Introducing Order and Chaos
Introduce Order by exploring “written” vs “unwritten” rules.
Factors and Codes: First Names (Episode 2)
Scrambled up somewhere in 161,000 is a first name. Can you find it!?
Factors and Codes (Episode 1)
Let’s use factors to encode and decode words.
How Many Ways: Fraction Subtraction Equals 1/2
How many different ways can you make this math statement true using only the digits zero through nine?
Fractions: Decompose and Recompose
What if we took a fraction apart, then took those pieces apart, then recombined them, and then recombined those, arriving back to the original fraction?
Subtraction: 3 Digits Minus 2 Digits (Multiple Solutions)
Typical practice problems don’t move students up Bloom’s Taxonomy. With this framework, you’ll see kids stop and really think about how to approach multi-digit subtraction.
What If There Were No Hundreds Place?
Imagine a world with no hundreds place. We’d have to call it ten tens instead. But then, what would we call the thousands place? How would we read 9999? What if we added one more?
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.
Same Perimeter, Different Area For Rectangles
Can two rectangles have the same perimeter but… different areas!?
Undoing Multiplication With Division
Multiplication and division, natural foes, are constantly seeking to undo each other. Students will attempt to reverse the effects of multiplication by dividing once, twice, or even thrice!
Why Is Our Calendar So Weird!?
Why are there 12 months? Why don’t weeks fit into months evenly? Why don’t weeks fit into the year evenly? What’s going on with the calendar!
What Do Mean and Median Mean?
When will mean and median give us different results?
Depth and Complexity: Patterns
Can your students spot anything that repeats? Or that has stopped repeating?
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?