Lesson 8: Finding Addition Patterns in Ratio Relationships

The video tutorial covers lesson eight from module one, focusing on finding addition patterns in ratio relationships using coordinate grids. The lesson explains how to identify patterns by plotting points and drawing lines on a grid. It provides practical examples, such as the relationship between dish soap and cornstarch, and frozen pastries and microwave time, to illustrate how addition patterns can be used to solve problems and find missing values. The lesson emphasizes the importance of recognizing these patterns to understand equivalent ratios and solve mathematical problems effectively.

What is the main focus of Lesson 8?

• Finding division patterns in ratio relationships

• Finding subtraction patterns in ratio relationships

• Finding addition patterns in ratio relationships

• Finding multiplication patterns in ratio relationships

When plotting points on a coordinate grid, what pattern is observed when moving to the right by 3 places?

• The y-value increases by 3

• The x-value increases by 3

• The y-value decreases by 4

• The x-value decreases by 3

If you move up 4 places on a coordinate grid, what happens to the y-value?

• It decreases by 3

• It remains the same

• It increases by 4

• It decreases by 4

In the example with dish soap and cornstarch, how many more tablespoons of cornstarch are needed for every 3 tablespoons of dish soap?

• 4 tablespoons

• 3 tablespoons

• 5 tablespoons

• 2 tablespoons

If there are 12 tablespoons of dish soap, how many tablespoons of cornstarch are needed?

• 12 tablespoons

• 16 tablespoons

• 8 tablespoons

• 20 tablespoons

In the frozen pastries example, how many seconds are needed to microwave 6 pastries?

• 30 seconds

• 60 seconds

• 90 seconds

• 120 seconds

For every 3 more pastries, how many additional seconds are needed in the microwave?

• 10 seconds

• 20 seconds

• 40 seconds

• 30 seconds

If you have 12 frozen pastries, how long should you microwave them?

• 120 seconds

• 90 seconds

• 60 seconds

• 150 seconds

What is the main takeaway from the lesson?

• Understanding subtraction patterns in ratio relationships

• Understanding addition patterns in ratio relationships

• Understanding division patterns in ratio relationships

• Understanding multiplication patterns in ratio relationships

What tool can be used to find addition patterns in ratio relationships?

• A protractor

• A coordinate grid

• A ruler

• A calculator