Lesson Plan
Curated OER

Inverses as a Form of Undoing

For Teachers 5th - 8th
Middle schoolers use inverse operations to solve two-step equations. They study a story problem about inverse operations, watch a video about the problem, and complete a handout for the inverse problem. Pupils finish with two...
Instructional Video10:36
2
2
Flipped Math

Inverse Trig Ratios

For Students 9th - 12th Standards
Put trigonometric ratios into inverse. Scholars learn how to find an unknown angle in a right triangle by using inverse trigonometric ratios. The pupils understand how the inverses undo a trigonometric ratio to provide the angle measure....
Lesson Plan
EngageNY

Using the Identity and Inverse to Write Equivalent Expressions

For Teachers 7th Standards
The fifth installment in the series of 28 lessons helps math scholars explore the result of adding opposite numbers and multiplying reciprocals. Through this exploration, they develop a working definition of identity and inverse properties.
Handout
Charleston School District

Solving with Inverse Operations

For Students 8th Standards
What does order of operations have to do with solving equations? A video explains solving two-step equations using a do/undo chart. Learners recognize the operations within an equation and use inverse operations to undo those...
Worksheet
Curated OER

Solving Linear Equations

For Students 8th - 9th
In this linear equations worksheet, students solve and complete 20 different problems that include using the order of operations. First, they distribute to remove the parentheses and combine like terms. Then, students move variables and...
Worksheet
Curated OER

Antonyms

For Students K - 2nd Standards
Familiarize linguists with antonyms as they examine examples and match up opposites. First, scholars read a short description of antonyms, writing as many antonyms for big as they can. Then, they match up pairs of words that are antonyms...
Worksheet
Curated OER

Opposites

For Students 2nd - 3rd
In this grammar worksheet, learners identify what opposites means and another name for them. Then they draw a line from each word on the left to a word on the right with the opposite meaning. Students also circle the word that is the...
Worksheet
Curated OER

Subtraction as the Opposite of Addition

For Students 4th - 6th
In this basic math operation worksheet, students learn that subtraction is the inverse of addition. They then solve 8 subtraction problems and use addition to check the answers. Answers are available on the second page.
Worksheet
Curated OER

Addition and Subtraction as Inverse Operations

For Students 3rd - 4th
For this addition and subtraction worksheet, students work with the inverse operations. They fill in the boxes in 8 examples using mental math. They look at the addition problems and fill in the blanks in the subtraction problem and vice...
Lesson Plan
Curated OER

Adding and Subtracting Integers

For Teachers 6th - 7th
Middle schoolers use discs in order to add and subtract integers. There are manipulatives present so kinesthetic learners can access the curriculum. They also review the concept of the opposite of positive and negative numbers.
Lesson Plan
Curated OER

Whole Numbers

For Teachers 6th
A game is a great way to learn. Study what makes an integers, their traits, and characteristics. This lesson includes 3 separate activities intended to promote an understanding of integers, whole numbers, and opposites. The class is...
Lesson Plan
Curated OER

Integer

For Teachers 7th
Seventh graders examine the characteristics of an integer. As a class, they observe a number line and recognize opposite numbers. Algebra tiles, or counters, are used to explore the concept of adding integers. In groups, 7th graders play...
Worksheet
Curated OER

What's the Difference?

For Students 5th - 6th
In this integers activity, students solve and complete 4 different problems that include determining various integers in temperature. First, they use the thermometers shown to graph the difference between the highest and lowest...
Lesson Plan
EngageNY

Opposite Quantities Combine to Make Zero

For Teachers 7th Standards
Find the cards that get to zero. The activity introduces the class to the idea of adding integers. Pupils use a number line to count up and count down when adding. They play a game to collect cards that will sum to zero.
Worksheet
Curated OER

The Additive Inverse, or the Opposite of a Number

For Students 6th - 8th Standards
This resource would actually be best used as a projection when teaching about additive inverses. The first "page" shows on a number line how 6 and -6 get you to zero. The second supplies an opportunity for viewers to apply the concept to...
Lesson Plan
Curated OER

Distances on the Number Line 2

For Teachers 6th - 8th Standards
Simple tasks are presented for your seventh grade math masters. They are to determine whether two numbers on a number line are equidistant from zero and what the two added together would be.
Worksheet
Curated OER

Inverse Variation

For Students 8th - 10th
In this algebra activity, students find the inverse of an equations. They graph their solutions and analyze it. There are 8 questions.
Worksheet
Curated OER

Inverse Relations and Functions

For Students 9th - 11th
In this algebra worksheets, students find the inverse of a given function by switching the y with the x. They graph the different functions and identify the difference. This worksheet includes thoughtful questions and worked examples.
Worksheet
Curated OER

Triangles

For Students 10th
In this triangles worksheet, 10th graders solve 3 extensive informal geometry problems that involve triangles. First, they sketch a triangle, selecting 3 of the sides and constructing 3 midpoints. Students then draw each of 3 medians by...
Worksheet
Curated OER

80 Opposite Adjectives-- Complete the Table-- Tough Version 2

For Students 5th - 6th
For this language arts worksheet, students analyze a list of 40 adjectives and next to each one, write the opposite. These are challenging and require careful word selection.
Printables
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1
Houghton Mifflin Harcourt

Unit 4 Math Vocabulary Cards (Grade 6)

For Students 6th Standards
Reinforce math vocabulary with a set of flash cards. Forty-eight cards offer boldly printed words, and their corresponding definition alongside an example with labels. Terms include absolute value, inverse operations, slope, and more! 
Worksheet
K12 Reader

Sum Difference

For Students 2nd - 3rd Standards
If you need a way to address math and reading in one lesson, look no further than a passage about inverse operations, complete with reading comprehension questions. Kids focus on context clues to determine the meanings of unfamiliar words.
Printables
1
1
Houghton Mifflin Harcourt

Unit 8 Math Vocabulary Cards (Grade 6)

For Students 6th Standards
Additive inverse, expression, and irrational numbers are a few terms you'll find when you use a set of 22 flashcards designed to reinforce math vocabulary. The set includes two types of cards; a bold-faced word card, and a corresponding...
Lesson Plan
EngageNY

Complex Number Division 2

For Teachers 11th - 12th Standards
Individuals learn to divide and conquer complex numbers with a little help from moduli and conjugates. In the second lesson on complex number division, the class takes a closer look at the numerator and denominator of the multiplicative...