Lesson 2.2.3: Modeling relationships with lines
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For this lesson there are 12 steps for you to take. Scroll down and do each step one-by-one. The instructions under each step will help clarify exactly what you need to do, so please read all the instructions.
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Here is the Lesson 2.2.3 Worksheet
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1.) Start Notes: Targets
Title your notes and write the targets listed below.
Title your notes and write the targets listed below.
- I can use technology to determine the equation for the line of best fit for a scatter plot.
- I can use the line of best fit to make predictions.
3.) Video: Warm Up
Watch this video to see how I answered the questions from the Warm Up. Make sure to watch the entire video because I go into some detail near the end about the main concept we will be learning in this lesson. |
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4.) Notes: Practice 1
First, please read the description at the beginning of this practice problem. It describes the use of a line in making predictions. Second, copy the line into your warm up graph. Third, answer questions 3-6. This practice problem introduces how to use a line and sets us up for the next practice problem. |
5.) Video: Practice 1
Watch this video to see how I answered questions 3-6. |
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6.) Notes: Practice 2
This practice problem is all about "Residuals." First, read through the description of what a residual is. Second, write down the formula they give you to find a residual. Third, work through exercises 7-9. This practice problem helps us identify what makes a good line for a scatter plot. |
7.) Video: Practice 2
Please watch this video to see how I describe a Residual and why they are important. |
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8.) Notes: Practice 3
This is just the introduction to Practice 3. Read through this description about what a line of best fit is. Then write a definition into your notes for "Line of Best Fit" and make a list of other names it might have. The next video will show you how to find the line of best fit using technology. |
9.) Video: Practice 3
Watch this video to see how to find the "Line of Best Fit" using technology. This is the main part to this whole lesson! |
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11.) Video: Practice 3 (continued)
Watch this video to see how I worked through exercises 10-13. |
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12.) Exit Ticket
Now it is your turn to show what you know. First, read the new scenario. Second, copy the table into your notes. Third, get a graph piece of paper to make the grid they have for problem 1. Then answer the rest of the questions. When you are done, show me your awesome work. A high five is on its way :) |