Arithmetic and Pre-Algebra Teacher Resources
Hi, What do you want to do?
Most elementary and middle schools just call this "Math". Here we cover everything from counting, number operations, and fractions to evaluating basic expressions and equations. All of this adds up to preparation for the eventual study of Algebra.
Showing 213 resources
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Algebra 2
In this algebra worksheet, students solve for the variables in the addition and subtraction problems. Students complete 72 problems.
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Algebra
For this algebra worksheet, 6th graders solve for the variable in each addition problem containing numbers with decimals. Students complete 54 problems.
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Using Math with Sale Papers
Fifth graders estimate their results and then prove through calculations. In this math lesson, 5th graders solve problems using multiplication, division, addition, and subtraction. They also use mental math to solve their problems.
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How Do You Add and Subtract a Bunch of Numbers with Different Signs?
So you have an expression of positive and negative numbers and you want to add and subtract them. Do you do the operations in order that they are written? Do you combine some? Do you move them around? Do you change their signs? The...
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Number Sense and Numeration
Pupils add and subtract integers. In this algebra instructional activity, students discuss number sense as they sort numbers in the correct order. They analyze and label numbers differentiating between rational and irrational numbers.
5280 Math
Integer Interpreter
Can you add variables if you don't know their value? Using an empty number line, scholars first locate the position of the difference, sum, product, and quotient of two unknown integers. Later problems mix operations as well as add...
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How Do You Add Mixed Fractions with Different Denominators by Converting to Improper Fractions?
The first step in adding mixed numbers is to change them into improper fractions. Secondly, make sure the denominators are the same. If they are not the same, then find a common denominator. Make the proper conversions to the numerator...
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How Do You Solve a Word Problem Using an Inequality With Variables on Both Sides?
Don't skip this word problem! Take one piece at a time in writing out this inequality. Once you have an expression that represents the words in this inequality, the rest will seem easy. So watch this video to get a better understanding...
Virtual Nerd
How Do You Use Unit Rates to Compare Rates?
Cupcakes, cupcakes, cupcakes! Where shall we buy some cupcakes? There are two stores selling cupcakes and we would like to know which one has the better deal. The instructor demonstrates how to find a unit rate for the cupcakes at each...
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What is a Term?
What does the word term mean in the math world? Is a term a part of a polynomial? Are terms those pieces of a polynomial separated by either an addition or a subtraction sign? Knowing the vocabulary of math is very important. So watch...
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Commutative Property
First graders use various models to learn the Commutative Property of Addition. For this Commutative Property lesson, 1st graders use other students, counters, balances, and dominoes to apply the addition property. Students solve...
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Addition With Integers
Eighth graders investigate the concept of combing integers using addition. They begin to comprehend the connection of addition and subtraction. Students also review the concept of positive and negative numbers.
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What are the Rules for Using Absolute Values to Add Integers?
There are several rules to adding integers using absolute values. It can seem a bit overwhelming to remember these rules. Watch this video and learn the rules as the instructor illustrates a few examples and explains the steps involved.
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Area, Arithmetic and Algebra
Students model formulas for rectangles and squares. For this area, arithmetic and algebra lesson, students explore the formula for the area of squares and rectangles. They use squares to model the formula for the area and identify...
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Exploring Solving Equations
Put out by Texas Instruments, this lesson involves learners in an activity focused on adding polynomials, solving equations, factoring trinomials, and expanding binomials. A TI-89 calculator is needed to complete this lesson.
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How Do You Do Long Multiplication?
Multiplying multi-digit numbers without a calculator. First, make sure you align the numbers properly. It's not just about multiplying, but there's carrying numbers and adding numbers and placeholders. You can do it, just remember to...
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How Do You Do Long Multiplication?
Multiplying multi-digit numbers without a calculator. First, make sure you align the numbers properly. It's not just about multiplying, there's carrying numbers and adding numbers and placeholders. You can do it, just remember to line up...
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What's a Polynomial?
A polynomial is the sum of one or more monomials. They are identified by the number of terms they have. Monomials, binomials, trinomials, find out what these terms identify.
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How Do You Add Polynomials?
So you want to learn how to add polynomials? Here are the steps: Rewrite by removing the parentheses, identify the like terms, group like terms together, combine the like terms, and finally rewrite the simplified expression.
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How Do You Add Polynomials Vertically?
The instructor demonstrates how to line up two polynomials vertically to add them together. She emphasizes lining up the terms with the same powers. She also identifies some places where there is no term and shows how to write a...
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How Do You Solve a Two-Step Equation With a Negative Variable Term?
The instructor goes through the steps of how to solve for the value of a variable in a two-step equation. Beware, this problem has a negative variable in the beginning.
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Area, Arithmetic and Algebra
Explore the concept of this perfect square trinomial and difference of squares lesson. A hands-on activity that uses paper rectangles and squares to illustrate the perfect-square trinomial and difference of squares formulas.
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How Do You Put an Equation in Point-Slope Form Into Standard or Slope-Intercept Form?
Given a linear equation, rewrite it in different forms. No matter what form a linear equation is given in, it can be converted to the other forms. So that means every linear equation can be written in standard form, point-slope form and...
