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Algebra2go: Pre-Algebra Math


Tech Product/Equipment:
Computer and projector, Mobile devices for students

Activity Description

Source: Algebra2Go Homepage (License: Protected by Copyright (c) [i.e. screenshot])

This Web site is filled with tools to assist teachers as they set up their math course as well as students looking for individual help. The site includes class notes, video worksheets, video lectures (using different formats if you cannot access YouTube), homework sets, topic quizzes to assess if students are able to skip the topic, and much more.



  1. Preview the site. Read the information on the home page to familiarize yourself with the site. Then select a course/topic in the left side navigation menu. Then you will see the Class Notes, Video Worksheets, Video formats, Homework sets and Topic Quizzes that are available.
  2. Preview the video
  3. If you plan on group activities after the class watches the video, print the homework set for your topic choice.
  4. Print copies of answer keys (found at the end of some of the homework sets, also problem answers are available in the class notes).
  5. Have an answer key to the Homework set available if you want students to correct their own work.


  1. Introduce the math topic. You can use your textbook or the Class Notes from the Web site.
  2. Allow students to watch the video on the topic. Stop the video to allow students to work on problems.
  3. Lead a discussion on how to do each problem.
  4. Hand out the Homework Set. Have students work in groups. Go over any problems they have trouble with. Show the answer key.
  5. Demonstrate how to use the Topic Quizzes as an assessment tool to see if the students understand the topic and are prepared for a quiz that you will create, such as the one in the Example Document titled Fractions Quiz with answers (above).

Teacher Tips

  • Students enjoy the videos.
  • If students have trouble taking notes on the videos print a copy of the Video Worksheet, which includes the problems presented on the video.
  • Have groups work separately on Homework Sets. Have them assist in creating the answer key.
  • When the groups do not agree on the answers, do them together. This works well between classes as well. When one class differs on an answer write SmackDown! beside the correct answer so they see their work showcased.

More Ways

  • Explore other courses offered on the left side menu. Beginning Algebra is not yet finished (missing homework sets and topic quizzes), but there are wonderful Class Notes and Videos to aid in understanding Algebra.
  • Math assistance in  Allied Health, Computer Science, and Chemistry Prep are found under Modules on the left. The study guides are well written and worth printing for student use.

Program Areas

  • ABE: Adult Basic Education
  • ASE: High School Equivalency Preparation
  • ASE: High School Diploma
  • ESL: English as a Second Language
  • CTE: Career Technical Education


  • Low
  • Intermediate
  • High
  • Intermediate High
  • Advanced

Lesson Plan


We use math everyday. What are some ways we use math? Students turn to their neighbors and discuss ways they use math.


Engagement Enhancement

Gather as a whole group and let students share their ideas from their paired discussions. Today we are going to examine how we use math when we renovate our house or backyard. We are going to compute perimeter for figuring out the cost of a fence. Perimeter is the measure around something. You can do it by measuring each side and then adding them together. You could also use the same technique for figuring out the perimeter of a picture frame. Where else might we need to figure out perimeter? Students turn to each other to discuss and then share with the class.


Engagement Enhancement

First  go to a website that will help us review our math skills, Algebra2Go. On the left side, select Prealgebra. Scroll down the center. You can demonstrate the various learning tools avaialable or you can go down to the section beginning with Addition and Subtraction. Go across the screen and open the various resources including Class Notes in English and Spanish, Video Worksheets, Video in three formats, Hoemwork Sets, and Topics Quizzes.

Point out that if  students are unsure where to start reviewing in math, they can begin with the topic quiz. It is six questions. If they get them correct, then move to the next topic.

For today's discussion about perimieter open the class notes beside Finding Perimeter. Go to page 4 of the Addition and Perimenter handout.

Students turn to their partner and go thorugh apage 4 of the handout.

Engagement Enhancement

Prior to class print the worksheet for the video, or project the problems on the board.Watch the video, Finding Perimeter

Stop the video and allow the students to work on the problems in pairs. Go over the problems together.

Engagement Enhancement

Students can work on the Homework Sets in pairs. They can access the worksheet online or you can print them and hand them out. The worksheet has the answer sheet included.

Have a student pair go to the board together. One writes while the other explains how to do the problem. Discuss the procedure and answers with the class.

Engagement Enhancement

For a formative assessment have students access the Finding Perimeter Topic Quiz. With all students working at the same time, go through problem set 1, calling on students to answer each of the six questions.. There are three problem sets you can review with the students.

Engagement Extension

Students can discuss ways to use perimeter and bring 'problems' from their own homes. They might take a picture of a flower garden and bring the dimenstions for the students to practice using perimeter to find the dimensions.


  • Algebra2Go.png - This is a screenshot of the Algebra2Go website showing the courses offered and some of the Modules available.


  • Math
    • Algebra
    • Consumer Math
    • Conversions
    • Decimals
    • Fractions
    • Geometry
    • Percentages
    • Pre-Algebra
    • Proportions
    • Whole Number Skills
  • Mathematics
    • Algebraic Concepts
    • Data Analysis/Probability/Statistics
    • Measurement/Geometry
    • Numbers and Operations on Numbers
  • Reading
    • Health

CTE Anchor Standards

  • Anchor Standard 1: Academics - Analyze and apply appropriate academic standards required for successful industry sector pathway completion leading to postsecondary education and employment. Refer to the industry sector alignment matrix for identification of standards.
  • Anchor Standard 6: Health and Safety - Reading Standards for Science and Technical Subjects: Determine the meaning of symbols, key words, and other domain-specific words and phrases as they are used in a specific scientific or technical context.


  • Number and Operations: Base Ten
    • 1.NBT.1-3 - Understand place value.
    • 1.NBT.4-6 - Use place value understanding and the properties of operations to add and subtract.
    • 2.NBT.2-4 - Understand place value.
    • 2.NBT.6-9 - Use place value understanding and properties of operations to add and subtract.
    • 3.NBT.1-3 - Use place value understanding and properties of operations to perform multi-digit arithmetic.
    • 4.NBT.1-3 - Generalize place value understanding for multi-digit whole numbers.
    • 4.NBT.4-6 - Use place value understanding and properties of operations to perform multi-digit arithmetic.
    • 5.NBT.1-4 - Understand the place value system.
    • 5.NBT.5-7 - Perform operations with multi-digit whole numbers and with decimals to hundredths.
  • Operations and Algebraic Thinking
    • 1.OA.2 - Represent and solve problems involving addition and subtraction.
    • 1.OA.3-4 - Understand and apply properties of operations and the relationship between addition and subtraction.
    • 1.OA.5-6 - Add and subtract with 20.
    • 1.OA.7-8 - Work with addition and subtraction.
    • 2.OA.1 - Represent and solve problems involving addition and subtraction.
    • 2.OA.2 - Add and subtract with 20.
    • 3.OA.1-3 - Represent and solve problems involving multiplication and division.
    • 3.OA.5-6 - Understand properties of multiplication and the relationship between multiplication and division.
    • 3.OA.7 - Multiply and divide within 100.
    • 3.OA.9 - Solve problems involving the four operations, and identify and explain patterns in arithmetic.
    • 4.OA.1-3 - Use the four operations with whole numbers to solve problems.
    • 4.OA.4 - Gain familiarity with factors and multiples.
    • 4.OA.5 - Generate and analyze patterns.
    • 5.OA.1-2 - Write and interpret numerical expressions.
  • Geometry
    • K.G.4 - Analyze, compare, create, compose shapes.
    • 1.MD.4 - Reason with shapes and their attributes.
    • 2.G.1,3 - Reason with shapes and their attributes.
    • 3.G.1-2 - Reason with shapes and their attributes.
    • 4.G.1 - Draw and identify lines and angles, and classify shapes by properties of their lines and angles.
    • 5.G.1-2 - Graph points on the coordinate plane to solve real-world and mathematical problems.
    • 5.G.3 - Classify two-dimensional figures into categories based on their properties.
    • 6.G.1,3-4 - Solve real-world and mathematical problems involving area, surface area, and volume.
    • 7.G.1 - Draw, construct, and describe geometrical figures and describe the relationships between them.
    • 7.G.4-6 - Solve real-life and mathematical problems involving angle, measure, area, surface area, and volume
    • 8.G.2,4-5 - Understand congruence and similarity using physical models, transparencies, or geometry software.
    • 8.G.7-8 - Understand and apply the Pythagorean Theorem.
  • Measurement and Data
    • 1.MD.2 - Measure lengths indirectly and by iterating length units.
    • 2.MD.2-4 - Measure and estimate lengths in standard units.
    • 2.MD.6 - Relate addition and subtraction to length.
    • 3.MD.1-2 - Solve problems involving measurement and estimation of intervals of time, liquid volumes, and masses of objects.
    • 2.MD.10, 3.MD.3 - Represent and interpret data.
    • 3.MD.5-7d - Geometric measurement: understand concepts of area and relate to area of multiplication and addition.
    • 3.MD.8 - Geometric measurement: recognize perimeter as an attribute of plane figures and distinguish between linear and area measures.
    • 4.MD.2-3 - Solve problems involving measurement and conversion of measurements from a larger unit to a smaller unit.
    • 4.MD.5-7 - Geometric measurement: understand concepts of angle and measure angles.
    • 5.MD.1 - Convert like measurement units within a given measurement system.
    • 5.MD.2 - Represent and interpret data.
    • 5.MD.3-5c - Geometric measurement: understand concepts of volume and relate volume to multiplication and to addition.
  • Number and Operations: Fractions
    • 3.NF.1-3d - Develop understanding of fractions as numbers.
  • The Number System
    • 6.NS.3-4 - Compute fluently with multi-digit numbers and find common factors and multiples.
    • 6.NS.1 - Apply and extend previous understandings of multiplication and division to divide fractions by fractions.
    • 6.NS.5-8 - Apply and extend previous understandings of numbers to the system of rational numbers.
    • 7.NS.1-3 - Apply and extend previous understandings of operations with fractions to add, subtract, multiply, and divide rational numbers.
    • 8.NS.2 - Know that there are numbers that are not rational, and approximate them by rational numbers.
    • 6.RP.3-3d - Understand ratio concepts and use ratio reasoning to solve problems.
    • 7.RP.1-3 - Analyze proportional relationships and use them to solve real-world and mathematical problems.
  • Number and Operations: Fractions
    • 4.NF.1-2 - Extend understanding of fraction equivalence and ordering.
    • 4.NF.3-4c - Build fractions from unit fractions by applying and extending previous understanding of operations on whole numbers.
    • 4.NF.6-7 - Understand decimal notation for fractions, and compare decimal fractions.
    • 5.NF.1-2 - Use equivalent fractions as strategy to add and subtract fractions.
    • 5.NF.3-7c - Apply and extend previous understanding of multiplication and division to multiply and divide fractions.
  • Ratios and Proportional Relationships
    • 6.RP.1-2 - Understand ratio concepts and use ratio reasoning to solve problems.
  • Expressions and Equations
    • 6.EE.1-4 - Apply and extend previous understandings of arithmetic to algebraic expressions.
    • 6.EE.5-8 - Reason about and solve one-variable equations and inequalities.
    • 6.EE.9 - Represent and analyze quantitative relationships between dependent and independent variables.
    • 7.EE.1 - Use properties of operations to generate equivalent expressions.
    • 7.EE.3-4b - Solve real-life and mathematical problems using numerical and algebraic expressions and equations.
    • 8.EE.1-4 - Work with radicals and integer exponents.
    • 8.EE.5 - Understand the connections between proportional relationships, lines, and linear equations.
    • 8.EE.7-8c - Analyze and solve linear equations and pairs of simultaneous linear equations.


circles, conversions, cylinders, decimals, division, equations, exponents, fractions, inequalities, integers, math videos, metric, multiplication, order of operations, percents, perimeter, prealgebra, properties, proportions, ratios, rounding, signed numbers, spheres, square roots, subtraction, translating word statements to math, volume, absolute value, addition, algebra, algebra2go, applications, area, beginning algebra

Creative Commons License

CC BY-SA:This license allows reusers to distribute, remix, adapt, and build upon the material in any medium or format, so long as attribution is given to the creator. The license allows for commercial use. If you remix, adapt, or build upon the material, you must license the modified material under identical terms.
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OTAN activities are funded by contract CN220124 from the Adult Education Office, in the Career & College Transition Division, California Department of Education, with funds provided through Federal P.L., 105-220, Section 223. However, OTAN content does not necessarily reflect the position of that department or the U.S. Department of Education.