55 Items in Unit
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TeachEngineering: Walk the Line - A Module on Linear Functions

For Teachers 7th - 9th Standards
The nine resources in the TeachEngineering: Walk the Line - A Module on Linear Functions unit, designed for Pre-algebra or Algebra 1 classes, focuses on the characteristics of linear equations in algebraic and graphic formats. Scholars...
6 Items in Assessment Set
Lesson Planet Curated

Mathematics Assessment Project: Tests for Middle School

For Teachers 6th - 8th Standards
Good assessments are hard to find—assessments that address content standards and fit into standard class periods. The six assessments in the middle school collection are 80-minute forms, divided into two 40-minute sections, and are...
Instructional Video9:36
Khan Academy

Negative Numbers Introduction, Negative Numbers and Absolute Value, Pre-Algebra

For Students 7th - 9th
Sal tackles pre-algebra in this series of videos, starting with the concept of negative numbers. Using a number line, he takes the viewer through different practical examples of negative numbers, such as temperature and bank accounts....
Worksheet
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Cumulative ACT Practice: Pre-Algebra I and Pre-Algebra II

For Students 10th - 12th
Here is an ACT practice worksheet where pupils solve pre-algebra problems in an ACT format. This packet contains a pre-algebra section with 15 problems, a pre-algebra II section with 10 problems, and one subtest with 14 problems.
Instructional Video12:49
Khan Academy

Scientific Notation Examples, Pre-Algebra

For Students 7th - 9th
This video contains additional scientific notation examples, continuing from the previous presentation. Viewers can see Sal work through several more problems using the techniques he has outlined throughout the pre-algebra video series.
Interactive
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Review of Pre-Algebra

For Students 7th - 9th
Middle and high schoolers review topics covered Pre-Algebra. They solve problems questions dealing with exponents, square roots and absolute value. They use the rules of divisibility and identify prime numbers. This two-page on-line...
Lesson Plan
Curated OER

Math Worksheets--Pre Algebra

For Teachers 6th - 8th
For this equations worksheet, students problem solve and calculate the answers to ten pre algebra equations. Students show each step of their work.
Worksheet
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Pre-Algebra Basic Operations: Decimals

For Students 6th - 7th
In this pre-algebra decimal learning exercise, students complete a total of 28 problems performing multiplication, division, subtraction and addition of decimals and fractions. 
Lesson Plan
Curated OER

Awareness of Pre-algebra Concepts

For Teachers 3rd - 8th
Students demonstrate different algebraic equations using Borenson's Hands-On Equation materials. They work in a cooperative group to solve algebraic equations.
Instructional Video6:17
Khan Academy

Solving Percent Problems, Decimals, Pre-Algebra

For Students 7th - 11th
Converting percents to decimals, and the other way around, can be tricky. Sal shows young mathematicians how to simplify this process with two sample equations and one word problem.
Instructional Video10:19
Khan Academy

Square Roots And Real Numbers, Pre-Algebra

For Students 7th - 11th
Sal works through several problems involving rational and irrational numbers and shows how to find the difference. This video is a good stepping stone for those preparing to take on more challenging algebra work.
Instructional Video5:23
Khan Academy

Multiplying in Scientific Notation (Example), Pre-Algebra

For Students 7th - 9th
Apply the concept of scientific notation to a word problem involving the rate of speed. Sal explains how to express the answer using scientific notation.
Instructional Video11:26
Khan Academy

Scientific Notation Examples, Pre-Algebra

For Students 7th - 9th
Explaining scientific notation is useful because "it allows us to write large or small numbers in ways that are easy for our brains to write down and understand." Sal proceeds to solve a few practice problems involving scientific...
Instructional Video5:17
Khan Academy

Number Sets, Fractions, Pre-Algebra

For Students 5th - 7th
Knowing mathematic terminology is vital for building a functional academic vocabulary. In this video, Sal defines number sets and the terms natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers....
Instructional Video9:17
Khan Academy

Unit conversion Within the Metric System, Pre-Algebra

For Students 7th - 9th
This video focuses on metric unit conversion. Sal introduces the necessary prefixes before launching into several mathematical examples. His easygoing manner and explanative annotations will undoubtedly help those who get a little stuck...
Instructional Video3:38
Khan Academy

Math Patterns Example 1, Applying Mathematical Reasoning, Pre-Algebra

For Students 6th - 9th
Faced with a series of numbers, we need to find the following few values of the sequence. This short video shows an example of finding the following values in a sequence where we must find the pattern of adding a specific number each...
Instructional Video2:41
Khan Academy

Dividing Mixed Numbers, Fractions, Pre-Algebra

For Students 5th - 7th
Before Sal can divide a mixed number, he has to rewrite it as an improper fraction. He explains that dividing a fraction is the same as multiplying it by its reciprocal and that you can "cancel out" numbers to make multiplying easier.
Instructional Video9:40
Khan Academy

Introduction to Order of Operations, Arithmetic Properties, Pre-Algebra

For Students 7th - 9th
First, by demonstrating the improper ways of solving an equation (left-to-right, multiplication first), Sal shows viewers how the answer to an equation can be drastically incorrect if the order of operations is neglected. He uses several...
Instructional Video3:03
Khan Academy

Introduction to Exponents, Pre-Algebra

For Students 7th - 9th
This video involves both positive and negative numbers. Sal explains the definition and function of exponents. This video offers several examples, ranging from simple to more complex, which are especially helpful for those who multiply...
Instructional Video2:06
Khan Academy

Adding Mixed Numbers, Fractions, Pre-Algebra

For Students 5th - 7th
This video will demonstrate adding mixed numbers. Sal explains that adding mixed numbers can be done by looking at the whole number separately from the fraction. Because his explanation is brief, this video would be great as a supplement...
Instructional Video3:18
Khan Academy

Adding Fractions with Like Denominators, Fractions, Pre-Algebra

For Students 5th - 7th
Show your students this presentation to help them understand how to add fractions with like denominators. Sal adds 3/15 to 7/15 and then simplifies his answer. He uses drawings and multiple colors to show the actual process.
Instructional Video4:03
Khan Academy

Multiplying Fractions and Whole Numbers: Mixed Number Answer, Pre-Algebra

For Students 5th - 7th
Here is a great video explaining multiplying a fraction by a whole number. Sal shows students how to put a whole number over 1 to multiply it by a fraction. He simplifies his answer and writes it as a mixed number.
Instructional Video9:31
Khan Academy

Multiplying and Dividing with Significant Figures, Decimals, Pre-Algebra

For Students 7th - 9th
Sal takes out the big guns—or, in this case, the big calculator—in this video, which takes the concept of significant figures even further. Sal shows how to multiply and divide significant figures using electronic and handwritten...
Instructional Video9:16
Khan Academy

Adding/Subtracting Negative Numbers, Pre-Algebra

For Students 7th - 9th
Guiding viewers through the addition and subtraction of numbers, this video includes many tips to help new learners internalize the concept of a number line. It clarifies the relationship between positive and negative numbers, including...

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