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Arizona Math Standard: 4.OA.A.1

Represent verbal statements of multiplicative comparisons as multiplication equations. Interpret a multiplication equation as a comparison (e.g., 35 is the number of objects in 5 groups, each containing 7 objects, and is also the number of objects in 7 groups, each containing 5 objects).

Spring Math Worksheets: Multiplication and Division
Spring Math Worksheets: Multiplication and Division
Sets of multiplication and division practice problems. But the unknown isn’t where you expect it to be!
Gr 1, 3, 4
How Many Will There Be? Earthworm
How Many Will There Be? Earthworm
Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.
Gr 3-5
How Many Will There Be? Courtyard
How Many Will There Be? Courtyard
Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.
Gr 2-6
How Many Will There Be? Checkerboard
How Many Will There Be? Checkerboard
Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.
Gr 3-5
How Many Will There Be? Squares in Squares
How Many Will There Be? Squares in Squares
Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.
Gr 2-5
How Many Ways: Multiply Fractions Equal 1/4
How Many Ways: Multiply Fractions Equal 1/4
One equation. Digits one through nine. How many ways can you make it work?
Gr 3, 4, 5, 7
How Many Will There Be? Xs and Os
How Many Will There Be? Xs and Os
Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.
Gr 1-7
How Many Will There Be? Flowers
How Many Will There Be? Flowers
These flowers sure are getting bigger faster! How large will they be in step 10? What about step 50?
Gr 1-6
Measurement: An Elephant
Measurement: An Elephant
What if I told you that an elephant weighed a back-breaking 176,000? Could you figure out the unit I’m using? But… how many corgis would that be?
Gr 3-8
Measurement: How Old Is Mr. Byrd?
Measurement: How Old Is Mr. Byrd?
What if I told you that I’m 341,640 old? Could you figure out what unit I’m using? Hint: it’s not years!
Gr 3-8
Math Curiosity: Goldbach’s Conjecture
Math Curiosity: Goldbach’s Conjecture
Can any even number be written as the sum of two primes? Goldbach thought so, but we haven’t proven it… yet!
Gr 1-5
How Many Ways: Times Equals Times
How Many Ways: Times Equals Times
How many different ways can you make this math statement true using only the digits one through nine?
Gr 3, 4, 6
How Many Ways: 2 Digit ÷ 1 Digit = 1 Digit
How Many Ways: 2 Digit ÷ 1 Digit = 1 Digit
How many different ways can you make this math statement true using only the digits one through nine?
Gr 2-6
Undoing Multiplication With Division
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!
Gr 3-7
Why Is Our Calendar So Weird!?
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!
Gr 3-6
Math Curiosity: Odds & Squares
Math Curiosity: Odds & Squares
Why does the sum of the first 5 odds also equal 5 squared?
Gr 1, 2, 3, 4, 6
A Donut Investigation
A Donut Investigation
In this cross-curricular investigation, students will look into an intriguing question: do donuts or salads have more sugar? They’ll grapple with misleading information, bias, and use their math skills to create a visual representation of sugar in popular foods.
Gr 1, 2, 3, 4, 6, 7
Math Curiosity: Waring’s Conjecture
Math Curiosity: Waring’s Conjecture
So, can you write every odd (greater than 3) as the sum of three primes?
Gr 1-5
A Nutrition-Based Math Project
A Nutrition-Based Math Project
Let’s create a parody ad attacking a surprisingly calorie-rich meal.
Gr 3, 4, 6, 7, 8