Ratios

Find here a complete lesson plan dealing with the equations and graphs of proportional relationships, as well as what each individual point on such a graph represents. It may appeal to girls in particular, as the data details the growth...

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...

The local swim team is the basis for this extensive worksheet on ratios, rates, and proportional reasoning. From the gender ratio of the team, to the cost comparison of uniforms, and the speeds of the athletes, learners manipulate...

How much sugar is in one bottle? Pupils use double number line diagrams to determine the amount of sugar in a 1L bottle of cola. The teacher leads a discussion on ways that double number lines can be of assistance in solving a problem...

Create ratios using the boys and girls in the class. The first lesson in a 29-part series introduces ratios. Pupils learn to create ratios, write them, and model them with tape diagrams. Class members realize that there are different...

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...

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...

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...

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...

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...