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Grade 7

Arizona Math Standard: 7.NS.A.1.d

Apply properties of operations as strategies to add and subtract rational numbers.

Racetrack – Race Around A Graph
Racetrack – Race Around A Graph
How fast do you get your mathematical car going without crashing?
Gr 5-7
Evens and Odds – Addition and Subtraction
Evens and Odds – Addition and Subtraction
When we’re adding and subtracting, do evens make odds into evens? Do odds make evens odd? Which one has… more power!?
Gr 1, 2, 3, 4, 7
Create Your Own Operation
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!
Gr 1-7
Numerator or Denominator: Which has more power in a fraction?
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.
Gr 2-6
Fraction Puzzlers: Add and Subtract Fractions To Reach A Number
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?
Gr 3, 4, 5, 7
Math Curiosity: Collatz Conjecture
Math Curiosity: Collatz Conjecture
The Collatz Conjecture: start with any number and get to 1 using just two rules. It seems to always work…
Gr 1-6