UNIT 9

What Influences Temperature?

Putting It All Together

Lesson 10

Expressions and Equations

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Let’s see if we can predict the weather.

Unit 9 ● Lesson 10

Learning

Goal

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Temperature Changes

Unit 9 ● Lesson 10 ● Activity 1

What factors or variables can influence the outside temperature?

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• Make a list of different factors.

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• Write a sentence for each factor describing how changing it could change the temperature.

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Example: One factor is time of day. Often, after sunrise, the temperature increases, reaches a peak in the early afternoon, and then decreases.

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Warm-up

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Open Up Resources, with adaptations CC BY Illustrative Mathematics.

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Is Temperature a Function of Latitude?

Unit 9 ● Lesson 10 ● Activity 2

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Open Up Resources, with adaptations CC BY Illustrative Mathematics.

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Is Temperature a Function of Latitude?

Unit 9 ● Lesson 10 ● Activity 2

1. Andre and Lin are wondering if temperature is a function of latitude.

Andre says, “I think it is, as long as we fix the time when we are measuring the temperature.”

Lin says, “But what if you have two places with the same latitude? Look at this weather map for Washington State. Seattle and Spokane have the same latitude but different temperatures right now.”

What do Andre and Lin mean?

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Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Open Up Resources, with adaptations CC BY Illustrative Mathematics.

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Is Temperature a Function of Latitude?

Unit 9 ● Lesson 10 ● Activity 2

2. Andre and Lin are discussing whether it is possible to define latitude and temperature in a way that makes sense to talk about temperature as a function of latitude. They are considering different options. What are some advantages and disadvantages of each option?

Here are the options:

1. Finding the temperature right now in cities with different latitudes
2. Finding the daily high temperature in cities that have different latitudes.
3. Finding the average high temperature in a specific month, for example, September in cities that have different latitudes.
4. Finding the average yearly temperature in cities that have have different latitudes.

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Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Open Up Resources, with adaptations CC BY Illustrative Mathematics.

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Is There an Association Between Latitude and Temperature?

Unit 9 ● Lesson 10 ● Activity 2

Lin and Andre decided that modeling temperature as a function of latitude doesn’t really make sense. They realized that they can ask whether there is an association between latitude and temperature.

1. What information could they gather to determine whether temperature is related to latitude?
2. What should they do with that information to answer the question?

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Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Open Up Resources, with adaptations CC BY Illustrative Mathematics.

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Is There an Association Between Latitude and Temperature?

Unit 9 ● Lesson 10 ● Activity 2

• What are some ways we viewed associations between two variables in the past?
• What are some things we need to keep in mind when we collect our data?

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Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Open Up Resources, with adaptations CC BY Illustrative Mathematics.

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This slide deck is copyright 2021 by Kendall Hunt Publishing, https://im.kendallhunt.com/, and is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).

All curriculum excerpts are under the following licenses:

IM 6–8 Math™ was originally developed by Open Up Resources and authored by Illustrative Mathematics^®, and is copyright 2017-2019 by Open Up Resources. It is licensed under the Creative Commons Attribution 4.0 International License (CC BY-NC 4.0). OUR's 6–8 Math Curriculum is available at https://openupresources.org/math-curriculum/.

Adaptations and updates to IM 6–8 Math are copyright 2019 by Illustrative Mathematics^®, and are licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).

Adaptations to add additional English language learner supports are copyright 2019 by Open Up Resources, and are licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).

Adaptations and additions to create IM 6–8 Math Accelerated are copyright 2020 by Illustrative Mathematics^®, www.illustrativemathematics.org, and are licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).

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