Activity
Illustrative Mathematics

Building toward fluency

For Teachers 2nd - 3rd Standards
Here is a great learning task that focuses on the development of areas in computational fluency including strategies in mental math. Young learners are guided through a list of addition expressions that help them visually understand the...
Lesson Plan
Rational Number Project

Initial Fraction Ideas Lesson 18: Overview

For Teachers 3rd - 6th Standards
Develop young mathematicians' ability to compare fractions with investigation into the number 1/2. After brainstorming a list of fractions equivalent to 1/2, children identify a pattern in the numerators and...
Lesson Plan
Kentucky Educational Television

The Road to Proportional Reasoning

For Teachers 6th - 8th Standards
Just how big would it really be? Young mathematicians determine if different toys are proportional and if their scale is accurate. They solve problems relating scale along with volume and surface area using manipulatives. The...
Activity
Education Development Center

Finding Parallelogram Vertices

For Teachers 5th - 7th Standards
Four is the perfect number—if you're talking about parallelograms. Scholars determine a possible fourth vertex of a parallelogram in the coordinate plane given the coordinates of three vertices. They read a conversation...
Lesson Plan
Illustrative Mathematics

How Many _______ Are In. . . ?

For Teachers 5th - 7th Standards
Help your learners gain meaningful understanding of dividing fractions using fraction models. The activity includes nine problems which are sequenced to show how the fraction division algorithm evolves. Have students use graph paper or...
Lesson Plan
Curated OER

Partial Quotient

For Teachers 5th - 7th
Students study what occurs in the division process, rather than just following prescribed steps. They expand number sense to include integers and perform operations with whole numbers, simple fractions, and decimals. They write a word...
Worksheet
DK Publishing

Learning 6 - Write the Word

For Students Pre-K - K Standards
Which plate has six cookies? Focus on the number six with novice counters as they solidify single-digit number concepts. Keep in mind pre-readers may have trouble with this, as there are written instructions they will need to...
Lesson Plan
Illustrative Mathematics

Animal Populations

For Teachers 9th - 12th Standards
Assume all you know is that the variable Q represents a value that is bigger than the value represented by the variable P. Which is larger P + Q or 2P? The problems in this activity get more complex than...
Lesson Plan
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American Statistical Association

A Sweet Task

For Teachers 10th - 12th Standards
Candy is always an effective motivator! A fun math activity uses M&M's and Skittles to explore two-way frequency tables and conditional probability. The candy can serve a dual purpose as manipulatives and experimental data.
Lesson Plan
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Kenan Fellows

Weight and Balance of an Airplane

For Teachers 9th - 12th Standards
A career in aeronautics might be calling your class members. Building from the previous two lessons in the series, learners continue analyzing the mathematics of aeronautics. Groups create a paper airplane using paperclips for balance....
Worksheet
Maths Blog

Make 20

For Students 1st - 3rd Standards
There are quite a few ways to make the number 20 through addition. Learners fill in missing addends to reach the sum of 20 then answer additional related questions. This is a good resource because it has the class both add to 20 and...
Lesson Plan
Curated OER

Get in Shape with Geometry

For Teachers K - 4th Standards
Using geoboards, computer programs, and hands-on manipulative materials, elementary schoolers engage in a study of two and three-dimensional geometric shapes. This lesson is chock full of good teaching ideas on the subject, and the...
Lesson Plan
Statistics Education Web

What Does the Normal Distribution Sound Like?

For Teachers 9th - 12th Standards
Groups collect data describing the number of times a bag of microwave popcorn pops at given intervals. Participants discover that the data fits a normal curve and answer questions based on the distribution of this data.
Lesson Plan
Illustrative Mathematics

Sharing Prize Money

For Teachers 6th - 8th Standards
When three classrooms are to split up prize money, your mathematicians must find the percentage that each class deserves and calculate the total amount. There is an option to use a calculator and practice rounding. 
Assessment
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California Education Partners

Bake Sale

For Students 5th Standards
Work with fractional cookies. The three-part assessment task checks the pupils' ability to find the product of fractions and whole numbers, mixed numbers, or fractions. Learners determine the amount of ingredients needed and how many of...
Activity
Education Development Center

Word Problem with Rational Numbers—Balancing Bars of Soap

For Teachers 4th - 5th Standards
Here's a resource teachers won't want to wash their hands of. Given a task where a full bar of soap is on one side of a balance and 3/4 of a bar of soup and a 3/4-ounce weight is on the other side, young mathematicians must determine the...
Lesson Plan
American Statistical Association

Scatter It! (Predict Billy’s Height)

For Teachers 8th Standards
How do doctors predict a child's future height? Scholars use one case study to determine the height of a child two years into the future. They graph the given data, determine the line of best fit, and use that to estimate the height in...
Activity
Illustrative Mathematics

Sand Under the Swing Set

For Teachers 7th - 9th Standards
Help the local elementary school fix their playground by calculating the amount of sand needed near the swing set. The problem practices setting up proportions and ratios with three different options for solving. You can chose the option...
Lesson Plan
Mathematics Assessment Project

Deducting Relationships: Floodlight Shadows

For Teachers 9th - 12th Standards
Try to figure out what happens with shadows as a person moves between two light sources. A formative assessment lesson has individuals work on an assessment task based on similar triangles, then groups them based on their...
Activity
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Agile Mind

Isabella’s Credit Card

For Teachers 8th - 12th Standards
An in-depth activity that involves a real-world problem about credit card debt. Learners are given a scenario in which Isabella plans to stop using her credit card and pay off the balance by paying a fixed amount each month. The first...
Assessment
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California Education Partners

Animals of Rhomaar

For Students 7th Standards
Investigate the growth rates of alien animals. Pupils study fictional animals from another planet to determine how much they grow per year. The investigators plot the growth of their animals over a period of time and then compare...
Activity
Howard County Schools

Generous Aunt

For Teachers 9th - 11th Standards
Witness the power of exponential growth with an activity that investigates two different savings plans. Class members create tables of values to see how and when a savings plan increasing exponentially exceeds one increasing linearly.
Lesson Plan
Mathematics Assessment Project

Representing Inequalities Graphically

For Teachers 9th - 12th Standards
A new, improved version of the game Battleship? Learners graph linear inequalities on the coordinate plane, then participate in a game where they have to guess coordinate points based on the solution to a system of linear...
Lesson Plan
Statistics Education Web

Double Stuffed?

For Teachers 9th - 12th Standards
True or false — Double Stuf Oreos always contain twice as much cream as regular Oreos. Scholars first measure the masses of the filling in regular Oreos and Double Stuf Oreos to generate a class set of data. They use hypothesis testing...