Activity
Illustrative Mathematics

Origami Stars

For Teachers 4th - 6th Standards
This one problem concentrates on the important concept of dividing a whole number by a unit fraction. Here, young mathematicians use pictures they draw to help answer this problem. Insight into the connection between multiplication and...
Lesson Plan
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Illustrative Mathematics

Above and below sea level

For Teachers 5th - 7th Standards
Using the real-world example of elevation, above or below sea level, young mathematicians interpret expressions using negative signs, and absolute value. This task provides a good opportunity to discuss the notion of magnitude and...
Lesson Plan
Illustrative Mathematics

Sugar in Six Cans of Soda

For Teachers 3rd - 5th Standards
Understanding how to multiply a whole number by a fraction is the key concept. Young mathematicians create a visual model of this real-world example and find the solution. Extensions are possible for making this an even richer activity....
App
Little White Bear Studios

TanZen - Relaxing Tangram Puzzles

For Students 3rd - 12th
An ancient puzzle game meets a modern implementation. Challenge mathematicians of all ages with this mind-bending geometric puzzle game. 
Lesson Plan
Illustrative Mathematics

It's Warmer in Miami

For Teachers 5th - 7th Standards
Brrrr it's cold in Alaska! When given the temperatures of Anchorage and Miami in the winter, your mathematicians will calculate how much warmer it is in Miami. Answer key provides two different solution choices. Great as a warm-up for...
Lesson Plan
Illustrative Mathematics

The Escalator, Assessment Variation

For Teachers 5th - 7th Standards
A great way to practice with unit rates, the activity gives your mathematicians an opportunity to compare different statements and select which are true. They can practice with "choose all that apply" by setting each statement into its...
Lesson Plan
Illustrative Mathematics

Riding at a Constant Speed, Assessment Variation

For Teachers 5th - 7th Standards
Practice ratios and unit rates with tracking how long Lin took to ride her bike. Provided with different questions, your mathematicians can assemble their answers using a chart or setting up ratios. The activity is included in a set of...
Lesson Plan
Curated OER

Find 1

For Teachers 3rd - 5th Standards
Extend your class's ability to represent unit fractions on a number line with this challenging worksheet. Given two number lines, one labeled with zero and 1/4, the other with zero and 5/3, students must accurately locate the number one...
Lesson Plan
Curated OER

Find 2/3

For Teachers 3rd - 5th Standards
This short problem with representing fractions on a number line is more than meets the eye. Labeled only with the numbers zero and 1/4, a number line is used to locate the fraction 2/3. A solution can be found in multiple ways, but young...
Lesson Plan
Curated OER

Locating Fractions Greater than One on the Number Line

For Teachers 3rd - 5th Standards
Supplement your lesson on improper fractions with this simple resource. Working on number lines labeled with whole numbers between 0 and 5, young mathematicians represent basic improper fractions with halves and thirds. The fractions...
Lesson Plan
Illustrative Mathematics

Interpreting a Division Computation

For Teachers 5th - 7th Standards
Mathematicians show their understanding of a division problem. If a student can apply long division to a pair of numbers and determine a quotient, what other factors and multiples become apparent? The example illustrates a simple...
Lesson Plan
Illustrative Mathematics

Voting for Three, Variation 1

For Teachers 5th - 7th Standards
This is an opportunity for young mathematicians to apply reasoning to solve real-world problems with ratios. Even though there are three candidates for class president, students will only consider two at a time, making the first problem...
Lesson Plan
Illustrative Mathematics

Overlapping Squares

For Teachers 5th - 7th Standards
The objective of this activity is to find the percent of the area of a two squares overlapping. Mathematicians find the ratio of area for the part that overlaps to the rectangle formed. The final answer is a percent as a rate per 100....
Lesson Plan
Illustrative Mathematics

Are These Right?

For Teachers 3rd - 5th Standards
Is that a right triangle or a wrong triangle? Young mathematicians look at eleven different shapes and use a measuring tool of their choice to determine which triangles have right angles. Consider cutting out sets of the shapes to...
Lesson Plan
Illustrative Mathematics

Comparing Two Different Pizzas

For Teachers 3rd - 5th Standards
What better way to learn about fractions than with a couple pizzas? Help Jessica figure out how much of the pizza she has eaten, while teaching your class that fractions refer to a specific whole amount. This problem will be challenging...
Lesson Plan
Illustrative Mathematics

Lines of Symmetry for Quadrilaterals

For Teachers 3rd - 5th Standards
Explore how lines of symmetry help define different categories of quadrilaterals. Looking at a square, rectangle, trapezoid, and parallelogram, young mathematicians discover that each shape has its own, unique symmetry. Encourage your...
Lesson Plan
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Illustrative Mathematics

Numbers in a Multiplication Table

For Teachers 3rd - 5th Standards
Identifying patterns is a crucial skill for all mathematicians, young and old. Explore the multiplication table with your class, using patterns and symmetry to teach about square numbers, prime numbers, and the commutative and identity...
Lesson Plan
Illustrative Mathematics

Explaining Fraction Equivalence with Picture

For Teachers 3rd - 5th Standards
Visual models are a great tool for demonstrating the concept of equivalent fractions. Given two pictures, young mathematicians first identify each fraction and then write an explanation for why they are equivalent. Use as a guided...
Interactive3:32
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Scholastic

Study Jams! Decimal & Fraction Equivalents

For Students 4th - 7th Standards
If a candy bar costs 3/4 of a dollar, can your mathematicians figure out the cost in cents? After watching this animated video, your learners will see that every fraction can be a decimal and every decimal can be a fraction. The video...
Interactive3:47
Scholastic

Study Jams! Relate Multiplication & Division

For Students 5th - 7th Standards
Sometimes the easiest way to understand division is to look at it as multiplication. Show your mathematicians that every problem can be written backward to make it easier for them. The video explains how the relationship between...
Activity
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Curated OER

Activity: An Experiment with Dice

For Teachers 3rd - 7th Standards
Roll the dice with this activity and teach young mathematicians about probability. Record outcomes for rolling two number cubes in order to determine what is most likely to happen. Graph the data and investigate patterns in the results,...
Interactive
Scholastic

Study Jams! Distributive Property

For Students 4th - 7th Standards
The distributive property is a foundational skill taught two ways in this interactive web page. Your young mathematicians can practice their order of operations by solving distributive problems working from inside out. They then move on...
Interactive
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Scholastic

Study Jams! Finding a Fraction of a Set

For Students 5th - 7th Standards
Finding a fraction of a number is just multiplication in disguise. Young mathematicians can interact with this lesson to practice using multiplication to find a percent of a whole number. The narrator goes over how to put the number over...
Interactive
Scholastic

Study Jams! Tree Diagrams

For Students 4th - 7th Standards
With so many toppings to chose from, make the ice cream truck combinations a fun math problem that teaches your learners about outcomes. The video introduces a tree diagram that allows your mathematicians to see how to create...

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