Curated OER
Investigating Velocity Effects at Takeoff
Young scholars use, with increasing confidence, problem-solving approaches to investigate and explain mathematical content. They make and test conjectures. They use tables and graphs as tools to interpret expressions, equations, and...
Curated OER
WINDMILL POWER
Learners study operations with real numbers using mental computation or paper-and-pencil calculations. They judge the reasonableness of numerical computations and their results. They set up and solve proportions for direct and inverse...
Curated OER
Walking Home
Middle schoolers discover the formulas for calculating distance. In groups, they solve equations determine the distance in a specific amount of time. They record their answers in a chart or graph and compare them with their classmates.
CK-12 Foundation
Ck 12: Algebra: Graphs of Linear Models of Direct Variation
[Free Registration/Login may be required to access all resource tools.] Students will write, graph, and solve direct variation models for real-world problems. Students examine guided notes, review guided practice, study vocabulary, watch...
CK-12 Foundation
Ck 12: Algebra: Applications Using Direct Variation
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn how to solve real-world problems modeled by direct variation. Students watch a video tutorial, explore guided notes and attempt...
Oswego City School District
Regents Exam Prep Center: Direct Variation
This site gives a definition for direct variation and an example problem.
Texas Instruments
Texas Instruments: An Exploration of Direct Variation and Linear Regression
Students will use this activity for the following Algebra concepts: Review of Direct Variation; Properties of direct variations; Finding the constant of variations from data sets; Find missing values in data sets both numerically and...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Direct Variation
Find a quick, concise explanation of what a direct variation is. An example is given and clearly explained.
Oswego City School District
Regents Exam Prep Center: Practice With Direct Variation
This site has eleven interactive problems dealing with Direct Variation. Allows you to answer in multiple choice format and gives an explanation for the correct answer.
Mangahigh
Mangahigh: Algebra: Direct Proportion
Mangahigh is a website with math games aimed at twelve to eighteen year olds. On this site students form and use the formula for direct variation.
TeachEngineering
Teach Engineering: Forms of Linear Equations
Learners learn about four forms of equations: direct variation, slope-intercept form, standard form and point-slope form. They graph and complete problem sets for each, converting from one form of equation to another, and learning the...
CK-12 Foundation
Ck 12: Algebra: Direct Variation
[Free Registration/Login may be required to access all resource tools.] This lesson shows you have to determine if a set of data varies directly.
CK-12 Foundation
Ck 12: Algebra: Graphs of Rational Functions Study Guide
This comprehensive study guide highlights the main terms and formulas needed to understand graphs of rational functions. Examples are included.
Lawrence Hall of Science
The Math Page: Skill in Algebra: Variation
Here is a site that clearly and thoroughly explains direct and inverse variation. There are example problems solved, problems for the student to attempt, and answers to the student problems. Point this site out to students who have been...
Math Planet
Math Planet: Algebra 2: Rational Expressions: Variation
Provides an explanation and examples of variation.
CK-12 Foundation
Ck 12: Algebra: Ratio, Proportion, and Variation
[Free Registration/Login may be required to access all resource tools.] Understand direct and inverse variation.
CK-12 Foundation
Ck 12: Algebra: Inverse Variation Models
[Free Registration/Login may be required to access all resource tools.] Graph, write, and solve inverse variations.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: High School Basic Algebra Review
An overview of basic high school algebra topics can be found here. Absolute value, signed numbers, inequalities and equations, mixture problems, and direct and indirect variation are all listed, each with links to questions posed by...
TeachEngineering
Teach Engineering: Applications of Linear Functions
This lesson plan culminates the unit with the Go Public phase of the legacy cycle. In the associated activities, students use linear models to depict Hooke's law as well as Ohm's law. To conclude the lesson plan, students apply they've...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Combined Variation
Find a quick, concise explanation of Combined Variation. Hyperlinks are available to explain how variables can vary directly and inversely.