Corbett Maths
Direct Proportion
Direct change by finding the constant. Using two known values within a direct proportion, the resource shows how to find the constant of proportionality. Once individuals do that, they then find any value given the other. The video works...
Curated OER
Fraction/Decimal/Proportion Equations
In this algebra worksheet, students solve linear equations for the given variable. They use combining like terms to simplify equations. Students use opposite operations to isolate the variable.
Willow Tree
Direct and Inverse Variations
Enhance pupil understanding of proportions and variable relationships by studying direct and inverse variation. Use the idea of a proportional relationship to teach direct variation. Then use a similar pattern to help individuals...
Virginia Department of Education
Determining Direct Variation
Once learners realize what direct variation is, they see it's just a type of linear function. The instructional activity poses a general question that leads to the creation of the y = kx formula. The resource includes discussion prompts...
Willow Tree
Ratios and Proportions with Congruent and Similar Polygons
Investigate how similar and congruent figures compare. Learners understand congruent figures have congruent sides and angles, but similar figures only have congruent angles — their sides are proportional. After learning the...
Raytheon
Ratios and Rates
Here is a ratios, rates, and proportions worksheet which invites learners to solve word problems dealing with ratios, rates, and proportions. They complete 26 problems total.
Bowels Physics
Direct and Inverse Relationships
Viewers learn to recognize direct and inverse relationships in the world of physics with a presentation that reveals how to recognize a direct versus an inverse relationship from a formula or graph. After showing basic examples, the...
Cloud Front
Direct Variation Worksheet
Direct variation can be applied to many problems and here is a worksheet that has learners practicing them all. The skills include graphing, finding proportional relationships, and solving word problems to show how different factors...
Curated OER
Dragonfly
The speed of a dragonfly brings math into the real world as your learners collaboratively see the value in calculating unit rates in direct proportion problems. This six-phase lesson plan encourages you, as the teacher, to only ask...
CPM
Direct, Joint, and Inverse Variation
Here is a quick guide to direct, joint, and inverse variation used in realistic situations. Each topic has a page of notes and examples followed by practice problems. The resource explains each type of variation and provides their...
Flipped Math
Calculus AB/BC - Modeling Situations with Differential Equations
Differentiate between models. Pupils watch as the video works through three examples of creating a differential equation to model a situation. Scholars use their knowledge of proportional relationships to set up the equations and to...
Flipped Math
Calculus AB/BC - Unit 7 Review: Differential Equations
Differentiate everyone's knowledge. Pupils work through nine review questions to highlight key concepts from Unit 7. Items range from finding slope fields and reasoning with them to finding general and particular solutions of...
CK-12 Foundation
Graphs of Linear Model of Direct Variation: On the Moon
You'll be over the moon about this resource. Scholars draw a line representing the weight of an object on the moon based on its mass. Consideration of the constant of proportionality allows them to see relationships between weight of an...
Curated OER
The Spread of Disease with Differential Equations
Twelfth graders solve problems using differential equations. In this Calculus lesson, 12th graders analyze data regarding the spread of a flu virus. Students use the symbolic capacity of the TI-89 to develop a model and analyze the...
Curated OER
Direct Variation
In this algebra worksheet, students solve equations by applying direct variation relationship. They solve problems using proportions and ratios while using direct variation. There are 3 problems with an answer key.
Curated OER
Direct Variation
In this Algebra I/Algebra II worksheet, students solve problems involving direct variation. The two page worksheet contains a combination of twelve multiple choice and free response questions. Answers are included.
Curated OER
Direct Variation
In this direct variation learning exercise, students complete 9 multiple choice problems regarding direct variation. Students determine direct variation equations from word problems and from graphs.
EngageNY
Ratios and Unit Rates
This turn-key unit on ratios and unit rates walks through a 30-lesson unit on teaching proportional reasoning, with each lesson broken into detailed teaching notes and time allotments for all parts. An unbelievable resource when taken...
Illustrative Mathematics
Gotham City Taxis
Taxi! Have your travelers figure out how far they can go in a taxi for $10.00. They must account for the mileage rate and tip in their calculation. They can set up a table or make an equation to solve for the exact mileage they can...
NASA
Exercising in Space
Using the CEVIS space bike as a context, groups work together to calculate the settings required for astronauts to reach their necessary exercise. Pupils calculate the prescribed exercise settings and complete the last section, which can...
Curated OER
Direct Variation
In this direct variation worksheet, 11th graders solve 11 different problems that include applying direct variation to solve. First, they find the constant of the variation described. Then, students use the charts at the bottom of the...
Curated OER
Direct Variation
In this Algebra II worksheet, 11th graders solve problems involving direct variation. The two page worksheet contains explanation, examples, and twenty-one problems. Answers are not included.
Curated OER
Setting Up Equations
In this setting up equations worksheet, students solve 4 different problems that include setting up the equations in each problem. They write out an equation or set up an equations that describe each given situation. Then, students state...
Curated OER
Proportion Problems
Seventh graders explore the concept of proportions. In this proportions instructional activity, 7th graders determine which offer is the better deal given two pizza offers. Students use cross products to solve proportions. Students...