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Interactive
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CK-12 Foundation

Mean: Arithmetic Mean

For Students 6th - 9th Standards
How is a mean affected by changes in data? A well-designed animation allows individuals to manipulate data and watch the effect on the mean. Challenge questions help guide users to conclusions about outliers and skew within data.
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Interactive
1
1
CK-12 Foundation

Mean: Harmonic Mean

For Students 6th - 10th Standards
Let the means live in harmony. With lengths representing the values of a small data set, learners compare the arithmetic mean to the harmonic mean. The pupils determine which value is the most accurate representation of the average of...
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Unit Plan
Mathematics Vision Project

Module 3: Arithmetic and Geometric Sequences

For Teachers 8th - 10th Standards
Natural human interest in patterns and algebraic study of function notation are linked in this introductory unit on the properties of sequences. Once presented with a pattern or situation, the class works through how to justify...
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Lesson Plan
Novelinks

The Devil’s Arithmetic: QAR Strategy

For Teachers 5th - 8th Standards
Asking questions about the text is an important way for kids to become critical readers. Use a QAR activity based on The Devil's Arithmetic to help learners decipher between questions that are right there, between the author and the...
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Lesson Plan
Curated OER

Estimate and Compare Data

For Teachers 7th
Seventh graders explore the values that are used in order to describe data that is collected or given. They compare data using the statistical analysis provided by finding the mean, median, and range.
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Interactive
CK-12 Foundation

Limit of a Sequence: Finding the Limit of a Sequence (Part 2)

For Students 11th - Higher Ed
What does it mean if young mathematicians cannot put the squeeze on a sequence? Learners investigate a divergent sequence and find the formula for the nth term. Using the definition of a limit of a sequence, pupils try to find the limit...
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Lesson Plan
Curated OER

Geometric & Arithmetic Patterns

For Teachers 8th
Eighth graders explore sequences. They discuss the difference between an arithmetic sequence and a geometric pattern. Students participate in workstation activities where they determine arithmetic or geometric patterns and predict the...
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Worksheet
Curated OER

Median, Mean, Mode, and Range

For Students 4th - 5th
In this math worksheet, students read about the median, mean, mode, and range. The worksheet includes the following rhyme: Hey diddle diddle the median's the middle.
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Lesson Plan
Curated OER

Could a World of Swimmers Raise Sea Level?

For Teachers 9th - 12th
Students determine the volume of water they displace. In this earth science lesson, students calculate the total water displaced by the world's population. They evaluate whether or not this value is enough to raise the sea level...
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Lesson Plan
1
1
Laboratory for Atmospheric and Space Physics

Growing Up With A Mission

For Teachers 3rd - 6th Standards
New Horizons began its journey to Pluto in 2006. Ten years later, it continues its mission. In that time, scholars have surely grown, but how much more will they grow by the time New Horizons reaches its destination? Find out with an...
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Interactive
CK-12 Foundation

Coefficient of Variation: Diverse Populations

For Students 9th - 12th
What is the height of school clubs? Learners use sliders to calculate the coefficient of variation for three different school groups. Using the calculations, class members compare the variation in the heights of the groups.
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Printables
Virginia Department of Education

Middle School Mathematics Vocabulary Word Wall Cards

For Teachers 5th - 9th
Having a good working knowledge of math vocabulary is so important for learners as they progress through different levels of mathematical learning. Here is 125 pages worth of wonderfully constructed vocabulary and concept review cards....
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Lesson Plan
Institute of Electrical and Electronics Engineers

Public Keys, One Way Functions and Hard Problems

For Students 6th - 9th Standards
Use paint to teach about cryptography. Scholars explore public key cryptography by attempting to mix a secret color using paint. After the activity, they investigate the Diffie-Hellman method using prime numbers, exponents, and modular...
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Assessment
Inside Mathematics

Conference Tables

For Teachers 9th - 12th Standards
Pupils analyze a pattern of conference tables to determine the number of tables needed and the number of people that can be seated for a given size. Individuals develop general formulas for the two growing number patterns and use them to...
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Lesson Plan
EngageNY

Introduction to Networks

For Teachers 11th - 12th Standards
Watch as matrices break networks down into rows and columns! Individuals learn how a network can be represented as a matrix. They also identify the notation of matrices.
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Lesson Plan
Curated OER

Discovering Growth Patterns

For Teachers 7th - 9th
Students explain the differences between linear (arithmetic) and exponential (geometric) growth. They use worksheets imbedded in this lesson to help them make predicitions and graph data points.
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Lesson Plan
Curated OER

Sieve of Eratosthenes

For Teachers 8th - 12th
Students investigate numbers, ways of representing numbers, relationships among numbers and number systems. They comprehend the meaning of operations and how they relate to each other.
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Lesson Plan
National Security Agency

Borrowing from Our Neighbors

For Teachers 2nd - 4th Standards
Young mathematicians explore two-digit subtraction. They will investigate multiple ways to subtract numbers involving regrouping. Resources are provided.
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Lesson Plan
Curated OER

Subtraction with Regrouping Lesson Plan

For Teachers 2nd - 4th
Learners explore regrouping while subtracting. In this subtraction lesson, pupils manipulate base 10 blocks to demonstrate regrouping. Multiple resources are provided.
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Unit Plan
Curated OER

Multiplication Strategies - A Day at the Zoo

For Teachers 3rd - 4th
This is an amazing 33-page resource for teaching multiplication! Your mathematicians will discover the connection between multiplication and repeated addition. They also will work collaboratively with arrays while studying zoo animals....
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Lesson Plan
Curated OER

Skipping Into Multiplication

For Teachers 3rd - 4th
Young mathematicians study the relationship between skip counting and multiplication. They build on skip counting skills and examine arrays while studying multiplication. Resources are provided.
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Lesson Plan
Curated OER

Multiplication: A Treasure Hunt to Two and Three Digit by One Digit Multiplication

For Teachers 4th - 5th
Here is a math instructional activity which has learners practice multiplying two and three digit numbers by one digit numbers. They discuss multiplication strategies and use those strategies to play a game.
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Lesson Plan
Curated OER

Number and Operations: Webbing Our Way Through Numbers

For Teachers 2nd
Second graders explore estimation and place value. In this place value lesson, 2nd graders estimate and construct numbers while working with spider activities. Students use addition and subtraction to compare estimates. Resources and...
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Lesson Plan
Curated OER

Money: Count Pennies, Save a Dollar

For Teachers 2nd - 3rd
Students determine how to make the largest sum of money using the least amount of coins. In this mixed currency lesson, students listen to a reading of If You Made a Million by David M. Schwartz before participating in money counting...