CK-12 Foundation
Ck 12: Single Variable Division Equations: Paper Car Tires
[Free Registration/Login Required] Students practice solving division equations with variables. Click challenge me to answer practice questions and click learn more to watch a video.
CK-12 Foundation
Ck 12: Plix: Variables in Experiments: Scientific Experiments
[Free Registration/Login Required] Understand different variables that can be changed in an example of a scientific experiment. This site also includes a short quiz.
Sophia Learning
Sophia: Multiplication Is Associative
This video lesson defines and provides examples of the associative property of multiplication. Students can check their understanding with an assessment.
Sophia Learning
Sophia: Properties of Equality
This video lesson reviews the properties of equality and demonstrates how to use them to solve equations. Students can check their understanding with an assessment.
Science Education Resource Center at Carleton College
Serc: Foss Lifeboat Investigation
The second of a lesson series contains an activity where students choose a lifeboat's variable to investigate, plan an experiment based on the variable they have chosen, and then test the variable. Upon completion of their experiment,...
Utah Education Network
Uen: Equivalent Expressions
This multi-segment lesson plan uses games and calculators to explore the concept of equivalent expressions. Learners work together using inverse operations to isolate variables in algebraic equations. It also provides attachments for...
National Council of Teachers of Mathematics
Nctm: Figure This: Which Is Worth More, a Smile or a Frown?
Solve for the value of the smiles and frowns to find out how much a smile is worth, in this activity. A challenge that focuses on number sense, number combinations, and unknowns. Included are examples of how this skill is applied in real...
Center for Innovation in Engineering and Science Education, Stevens Institute of Technology
Ciese Collaborative Projects: International Boiling Point Project
The Stevens Institute of Technology has provided this great site with information on boiling points. Classes from around the nation have been encouraged to register, conduct a boiling experiment and post their data. The object is to...
Lawrence Hall of Science
The Math Page: Skill in Algebra: Algebraic Expressions
Here is a site that clearly and thoroughly explains many topics related to algebraic expressions. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to...
Purple Math
Purplemath: Absolute Value
Purplemath.com offers a comprehensive lesson on absolute value that provides some examples.
Purple Math
Purplemath: Variable
With this Purplemath lesson, find the answer to this question with examples to show how variables are written and used.
Purple Math
Purplemath: Algebra Resources
Purplemath contains about 40 different lessons on various algebra topics. The lessons are divided into five different sections: preliminary topics, beginning algebra, intermediate algebra, advanced algebra, and word problems. The lessons...
Goodwill
Gcf Global: Reading Algebraic Expressions
Learn how to read and understand algebraic expressions.
Illustrative Mathematics
Illustrative Mathematics: F if the Customers
This is a beginning lesson on the concept of functions. The context is a business that has a database of customer names and phone numbers in a table and students must decide if a function is involved. Aligns with F-IF.A.1 and 8.F.A.1.
Biology Corner
Biology Corner: Identifying Variables in an Experiment
Students analyze different experiments to determine independent variables, dependent variables and control groups.
CK-12 Foundation
Ck 12: Expressions for Real Life Situations: Shopping for Sisters
[Free Registration/Login Required] Students practice solving real-life situations involving expressions. Click challenge me to answer a practice question and click learn more to explore expressions and watch a video.
CK-12 Foundation
Ck 12: Algebra: Linear Equations Study Guide
This comprehensive study guide highlights the main terms and formulas needed to understand linear equations. Examples are included.
Utah STEM Foundation
Utah Stem Action Center: Sunlight & Water
This activity teaches kids about variables by growing three different plants from seed and explains that variables are something that can be changed in an experiment.
Khan Academy
Khan Academy: Start Here! Building a Simple Snowman Model and Rig It
Introduction to this instructional activity where you will build a simple snowman model and rig it using javascript. Then you can extend the model to create your own character in the final project. It provides an overview of the...
Better Lesson
Better Lesson: Tables and Equations.....they're Related!
Writing equations from tables prepares students for the concepts of slope and graphing equations.
Shodor Education Foundation
Shodor Interactivate: Multiple Linear Regression
Students compare multiple independent variables as predictors of one dependent variable. Students explore correlation and lines of best-fit.
Math Open Reference
Math Open Reference: Graphical Function Explorer (Gfe)
This resource provides a free function grapher. Enter up to 3 equations and plot them. Similar to a graphing calculator.
Cuemath
Cuemath: Algebraic Expression
This resource helps with understanding the concept of variables, constants, terms, and coefficients of any algebraic expression. Learn how to simplify algebraic expressions using algebraic formulas and the different types of expressions.
Concord Consortium
Concord Consortium: Smartgraphs: Independent and Dependent Variables
For various scenarios students select which of two variables should be considered independent and which dependent, and to explain their choice.