Curated OER
Rational Numbers
In this rational numbers learning exercise, 9th graders solve and complete 12 different problems that include multiplying various rational expressions. First, they find the product of two or more numbers, grouping in pairs. Then,...
Houghton Mifflin Harcourt
Introducing the Concept: Adding and Subtracting With Negative Integers
A basic narrative is outlined for teaching a lesson on the addition and subtraction of integers. Using a number line, you can demonstrate how to find the sum of a positive and negative integer. On the right side of the page are links to...
Curated OER
Bean Toss
Learners investigate positive and negative numbers using lima beans as a concrete model.
Willow Tree
Solving Inequalities
What does solving an inequality have in common with solving an equation? Almost everything! A math resource focuses on the one exception. The examples lead learners through the steps of solving an equality when multiplying or...
Curated OER
Adding Integers with Counters
Middle schoolers solve integers using addition. For this algebra lesson, students add integers using counters. They define and label patterns created by integer operations.
Curated OER
Addition And Subtraction of Decimals
Learners participate in a lesson of adding and subtracting decimals. They should review place values with decimals before beginning the lesson. The lesson plan also includes sample problems for the teacher to use in direct instruction....
Curated OER
Additive Inverses
Young scholars investigate properties of additive inverses. For this properties of additive inverses lesson, students discuss the what it means for two numbers to be opposites. Young scholars discuss representing opposite...
Curated OER
Cherries Still Positive, Lemons Still Negative
Third graders explore positive and negative integers. This follows a lesson entitled, Cherries Are Positive, Lemons Are Negative and uses Cherry heads and Lemon heads.
Bob Prior
The Order of Operations
Your learners use many different number representations like positive and negative integers, exponents, radicals, and combinations of operations as they learn and strengthen their use of the order of operations. Thoughtfully organized to...
Curated OER
Modular Mathematics
Pupils are introduced to modular mathematics. They start by making clocks for different bases. They use their clocks to count, using the base, and then finding the mod or remainder. They explore both positive and negative numbers with...
Curated OER
Number Lines, Variables, Solving for One Variable
Review basic algebraic rules of addition of integers. Then have the class define a variable and explore methods of solving equations with one variable. They observe solving expressions using inverse operations and simplifying solutions....
Curated OER
Addition and Subtraction of Integers #1
In this addition and subtraction of integers #1 worksheet, students solve 120 two digit problems with positive and negative numbers; there are 2 different sheets on a page, each with 60 problems.
Raytheon
Adding and Subtracting Fractions
In this adding and subtracting fractions learning exercise, students add and subtract fractions including mixed numbers and negatives. Students complete 62 problems.
Curated OER
Adding and Subtracting Integers
In this online interactive integers worksheet, 4th graders solve 8 addition and subtraction integer math problems and problem solve 6 integers problems involving numbers from -20 to 20. Students check their answers online when done with...
Curated OER
Introduction to the Number Line
Young scholars explore addition and subtraction of positive and negative numbers using a number line. In this number line lesson, students observe the teacher moving a magnet on a magnetic number line according to the operation being...
Curated OER
Negative Magic Squares
Magic squares are interesting objects in both mathematics proper and in recreational mathematics. So they are objects that children should have heard about and experienced. The problems in this sequence give students the opportunity to...
Curriculum Corner
7th Grade Math "I Can" Statement Posters
Translate the Common Core math standards into a series of achievable "I can" statements with this collection of classroom displays. Offering posters for each standard, this resource is a great way to support your seventh graders as...
Education Development Center
Geography of the Number Line
It's more than just numbers on a line, its an organizational, mental math machine to help learners understand the value of numbers. The tool is handy when introducing positive and negative integers to see their values and...
Curated OER
Arithmetic Operations With Numbers
In this arithmetic operations worksheet, 9th graders identify and solve 48 different problems that include applying Arithmetic operations with various types of numbers. First, they simplify each of the expressions using integer...
Curated OER
Addition Review
Students explore the concept of addition as used in the subject of Algebra while reviewing the different methods using a number line. The instructional activity includes examples for students to use for scaffolding for group work or...
EngageNY
Magnitude
Build an understanding of the powers of 10. Pupils investigate the results of raising 10 to positive and negative powers. They relate this understanding to the magnitude these powers represent in this seventh lesson of 15.
Curated OER
Integer
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...
Curated OER
Addition With Integers
in this math worksheet, students add the numbers with three digits and the signs are either negative or positive for the integers.
Curated OER
Adding and Subtracting Integers
In this algebra activity, students solve problems containing integers using addition and subtraction. They add positive and negative numbers correctly. There are 30 problems with an answer key.