- Comparing different ratios using two or more ratio tables

Key Points for Today:
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Key Points for Today: - Know how to identify both additive and multiplicative structure of a ratio table
- Use the structure to make additional entries in the table and to solve problems
Key Points for Today: - A ratio table is a table of equivalent ratios
- A ratio is often used to describe the relationship between the amount of one quantity and the amount of another quantity as in cases of mixtures or constant rates.
Key Points to Remember: (Finding the value of ratios is similar to simplifying fractions) - Find the Greatest Common Factor between both/all numbers within the ratio
- Draw your arrows (optional)
- Divide each number in the ratio by the GCF (greatest common factor)
- Ask: Can you find any other numbers that can go into both of the values? If you cannot, you have the value of the ratio.
Steps to solve problems with tape diagrams:
- Read the problem
- Determine the 1st ratio and write it down
- label and draw a tape diagram
- Find the second ratio
- label and draw the second tape diagram
- Determine which value goes into each equal sized section and fill out all the sections (you may have to divide)
- Solve the question/problem and write your answer in a complete sentence
Key Focus Points for Today: - How to create a tape diagram using ratios
- Write ratios in numerous ways using words demonstrating part to part, part to whole, and whole to part
- What total quantity does a tape diagram represent?
- What are the values of each individual part in a tape diagram?
Key Points: - What is a ratio?
- What are equivalent ratios?
- How to create equivalent ratios?
- Creating equivalent ratios using tape diagrams?
Key Points: - Write a ratio in three different forms
- Create a story problem about a ratio
- Represent a ratio in a table
- Use a tape diagram to represent a ratio
Helpful Videos: Introduction to Tape Diagrams PARTS 1 and 2 Focus Points for Today: - What is a ratio?
- Does the order in a ratio matter?
- What are the different ways to write/show a ratio?
- How to find the missing values in a ratio table
Helpful Video: Finding Missing Values in a Ratio Table The students learned the following in class today: - What is a Ratio?
- What are three ways to show/write a ratio?
- How to create a Tape Diagram
Math Antics: Ratios and RatesHelpful Video |
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