How to Use a RATIO | 6.RP.A.3 💜💙

In this math video we will learn how to use a ratio. We will be given a ratio of mass to volume. We will review how to write a ratio and how to write a proportion using equivalent ratios. We will use the given information and identify the mass of a given item. We will then write a proportion and determine the missing value using equivalent ratios. We will determine what factor, when multiplied results the given part of the ratio. We will multiply to create an equivalent ratio. An exemplar solution is modeled and explained.

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00:00 Introduction
00:11 The Question
00:40 How to Write a Ratio
00:54 How to Write a Proportion
01:36 How to Determine an Equivalent Ratio
02:08 The Solution

Ratios & Proportional Relationships
Understand ratio concepts and use ratio reasoning to solve problems.
6.RP.A.3 Use ratio and rate reasoning to solve real-world and mathematical problems, e.g., by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations.
6.RP.A.3.a Make tables of equivalent ratios relating quantities with whole- number measurements, find missing values in the tables, and plot the pairs of values on the coordinate plane. Use tables to compare ratios.
6.RP.A.3.b Solve unit rate problems including those involving unit pricing and constant speed. For example, if it took 7 hours to mow 4 lawns, then at that rate, how many lawns could be mowed in 35 hours? At what rate were lawns being mowed?
6.RP.A.3.c Find a percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times the quantity); solve problems involving finding the whole, given a part and the percent.
6.RP.A.3.d Use ratio reasoning to convert measurement units; manipulate and transform units appropriately when multiplying or dividing quantities.
6.RP.A.3 Determine the volume of a solid by using rate and ratio reasoning within a real-world context.