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Interactive
Mr. Martini's Classroom

Mr. Martini's Classroom: Mr. Martini's Classroom: Kids Math Comparing Numbers

For Students Pre-K - 1st Standards
Compare numbers from 1 to 40 using inequality symbols and equal sign with this interactive game.
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Website
Other

Math Bugs Me: Add Subtract Integers

For Students 6th - 8th Standards
This website provides students tips on how to add integers using absolute value and by introducing them to a pattern.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 7.ns, 7.ee Bookstore Account

For Teachers 7th
In this lesson, 7th graders add and subtract rational numbers to solve word problems.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 7.ns Distances on the Number Line 2

For Teachers 7th Standards
In this lesson, 7th graders add and subtract rational numbers on a number line.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 7.ns Comparing Freezing Points

For Teachers 7th
In this lesson plan, 7th graders compare freezing points by adding and subtracting rational numbers.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 7.ns Differences and Distances

For Teachers 7th Standards
In this lesson plan, 7th graders explore the differences and distances using a number line and adding and subtracting rational numbers.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 7.ns Distances Between Houses

For Teachers 7th
In this lesson plan, 7th graders determine the distance between houses by adding and subtracting rational numbers.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 7.ns Rounding and Subtracting

For Teachers 7th Standards
This lesson plan has students subtract and round rational numbers.
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Activity
University of Cambridge

University of Cambridge: Maths and Sports: Now and Then

For Students K - 1st Standards
Look at the changes in results on some of the athletics track events at the Olympic Games in 1908 and 1948. What will the results be in 2012? This slightly more challenging activity encourages children to examine data and consider...
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Reasoning About Multiplication

For Teachers 4th - 8th
This is a good task to work with kids to try to explain their thinking clearly and precisely, although teachers should be willing to work with many different ways of explaining the relationship between the magnitude of the factors and...
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Calculator Trouble

For Teachers 5th - 8th
Even though students can solve this problem by multiplying, it is unlikely they will. Here it is much easier to answer the question if you can think of multiplying a number by a factor as scaling the number. Aligns with 5.NF.B.5.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 5.nf Fundraising

For Teachers 4th - 8th
This task asks young scholars to multiply rational numbers. Aligns with 5.NF.B.5.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 5.nf Grass Seedlings

For Teachers 4th - 8th
For the sake of this commentary, let R be the height of Rual's seedlings (of course students do not need to use a letter to represent any number in this task). Student must compare the size of each of two products (112xR, and 34xR) to...
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Comparing Products

For Teachers 5th - 8th
The purpose of this task is to generate a classroom discussion that helps students synthesize what they have learned about multiplication in previous grades. Aligns with 5.OA.A.2.
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Unit Plan
Mangahigh

Mangahigh: Number: Multiply With Fractions

For Students 5th - 8th Standards
This site provides students practice with the concept of fraction multiplication. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.
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Unit Plan
Mangahigh

Mangahigh: Number: Multiply and Divide by a Number Between 0 and 1

For Students 5th - 8th Standards
This site provides students practice with the concept of multiplying rational numbers . Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.
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Unit Plan
Mangahigh

Mangahigh: Number: Multiply and Divide With Integers

For Students 6th - 9th Standards
This site provides students practice with the concept of multiplying and dividing integers. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.
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Unit Plan
Khan Academy

Khan Academy: Classify Numbers: Rational & Irrational

For Students 7th - 8th Standards
Practice identifying whether numbers are rational or irrational. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
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Unit Plan
Khan Academy

Khan Academy: Writing Fractions as Repeating Decimals

For Students 7th - 8th Standards
Practice writing fractions as repeating decimals. Get ready to bust out those long division skills! Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
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Unknown Type
Khan Academy

Khan Academy: Integers: Negative Numbers: Number Opposites

For Students 5th - 7th Standards
Students take a quiz over the concept of integer opposites, also known as additive inverses. After answering each question they are given feedback. Hints are available but affect the score. If students are still struggling with the...
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Absolute Value Equations

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn how to solve equations involving absolute value. Students can watch a video tutorial, explore guided notes and attempt practice problems.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Absolute Value Equations

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving absolute value equations. Students can watch a video tutorial, explore guided notes and attempt practice problems.
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Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Addition of Rational Numbers

For Students 8th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] Learn how to add rational numbers.
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Unit Plan
Texas Education Agency

Texas Gateway: Selecting and Using Appropriate Forms of Rational Numbers

For Students 6th - 8th
Given real-life problems, the student will select an appropriate method and solve problems involving proportional relationships.