Ratios Teacher Resources
Find Ratios educational ideas and activities
Showing 1 - 20 of 5,572 resources
Ratio of Boys to Girls
How many boys are in the class? Here is an introductory exercise describing ratios. The commentary shows different ways learners can approach the problem, using a tape diagram of boys to girls and using a table. The activity includes discussion on relating ratios to rates.
5th - 7th Math 90 Views 72 Downloads CCSS: Designed
Middle school math masters use ratios to determine the missing dimensions of various HD television screens. They also compare different dimensions of screens and determine whether or not they fit the same ratio. They perform similar tasks with the ratio for old analog television screens.
6th - 8th Math 29 Views 116 Downloads CCSS: Designed
Inspire mathematicians to see how ratio concepts can be used to plan a class bash! They determine which candy is the best deal. They alter a recipe to produce enough baked treats. They select the most cost-effective contents for a goodie bag by calculating unit rates.
6th - 8th Math 36 Views 31 Downloads CCSS: Designed
Photo Sizes Task
Photograph prints are often ordered as 4" x 6", 5" x 7", or 8" x 10", but did you know that these sizes are not proportional? Math wizards compare the ratios using different methods, such as graphing, in order to discover this fact. A worksheet, several possible solutions, and an extension activity make this a well-designed activity to use as a teaching tool or homework assignment.
6th - 8th Math 32 Views 84 Downloads CCSS: Designed
Hospitality and Tourism 3: Salads
After viewing a nutritious presentation on salads as any part of a meal, viewers participate in a paper-folding activity to prepare them to calculate ratios of salad dressing ingredients. As an assessment, they actually make a vinaigrette! This is a practical lesson for working with ratios that can be used in your math class, or a cooking elective.
6th - 12th Math 34 Views 32 Downloads CCSS: Designed
Introduce the concept of ratios. Start out by giving small groups of learners an assortment of colored cubes. Have them write a description of the materials that you gave them and then use this as a jumping-off point to talk about ratios and how to write them mathematically.
5th - 7th Math 72 Views 254 Downloads CCSS: Designed
Ratios and Fractions
What do fractions and ratios have in common? What is unique about fractions and what is unique about ratios? Lead a discussion and model some examples. Then, pose some questions and have your mathematicians set up the ratios. Check for understanding by having them set up a Venn diagram comparing ratios and fractions.
5th - 7th Math 55 Views 128 Downloads CCSS: Designed
Introduction to Exponential Functions
This instructional activity begins with a review of linear functions and segues nicely over its fifteen examples and problems into a deep study of exponential functions. Linear and exponential growth are compared in an investment task. Data tables are used to explore and practice the idea of common ratios to recognize exponential functions.
8th - 10th Math 33 Views 22 Downloads CCSS: Adaptable
Getting Us From One Place to Another
Use maps of your local area to teach and connect to real-world applications of ratio reasoning and scale. Teach your young mathematicians how to convert measurements: an inch equals a certain amount of miles. Start out with a simple worksheet and a simple map and scaffold to real maps of your local area.
5th - 7th Math 15 Views 48 Downloads CCSS: Designed
Introduction to Ratios
Demonstrating the concept of ratios with several simple examples (animals, fruit, girls and boys in class), Sal guides viewers through the process of finding and simplifying ratios. Even those who have a hard time grasping the concept of ratios will have an easier time listening to Sal's easygoing instruction.
14 mins 7th - 9th Math 7 Views 21 Downloads
Banking 8: Reserve Ratios
Addressing the concept of reserve ratios, Sal outlines the necessity and purpose of regulating the reserves within the banking system. He describes how an ideal banking system stays liquid, whereas a chaotic banking system might experience a bank run.
11 mins 9th - Higher Ed Math 3 Views 1 Download
Partitioning a Directed Line Segment
Your geometry learners will find the point that partitions a directed segment on a coordinate grid into a given ratio using geometric construction tools, the proportional nature of similar triangles, and the distance formula. In their collaborative teams they will write and justify conjectures based on their explorations involving similar triangles.
9th - 11th Math 5 Views 3 Downloads CCSS: Designed
Voting for Three, Variation 2
Here is another opportunity for math students to apply reasoning to solve real-world problems with ratios. The ratio of the number of votes for two candidates is provided. Your class is asked to use this ratio and information given about a third candidate to find the number of votes for each participant.
5th - 7th Math 8 Views 7 Downloads CCSS: Designed
Surveying the Ancient World
Astrolabes have been used by explorers and astronomers throughout the ages. But how exactly do they work and what can a young mathematician do with one today? Learners will build a simple version of this tool and then using the altitude, measure the height of various objects.
9th - 12th Math 17 Views 12 Downloads CCSS: Designed
Young scholars investigate probability. They will define probability as the likelihood of an event occurring. Then, they determine the probability of sitting in a particular seat on a plane. They also set up ratios of various seating scenarios on the airplane, such as the likelihood of sitting in row 7 out of 30 rows.
6th - 8th Math 77 Views 259 Downloads CCSS: Adaptable
World Series of Pop Culture
Have you heard of the VH1/Entertainment Weekly TV show "World Series of Pop Culture" that was on in 2007? This real-world lesson plan about ratios and reasoning is based on three friends competing as a team for a school trivia competition that follows the game-show format.
6th - 8th Math 11 Views 43 Downloads CCSS: Designed