No captions Captions Stop the video above first if it is playing.
No captions Captions Stop the video above first if it is playing.
Mary and Claire use the applet to create a model of the average maximum temperature in Houghton, using averages from 1961 to 1990.
Episode Supports
Students’ Conceptual Challenges
Mary seems unsure of what each data point represents. She traces along the curve and says that it represents the data for January [2:40]. In contrast, Claire points to a specific point on the graph and says it represents the data for January. Use the first Supporting Dialogue prompt below to elicit your students’ ideas about this.
Focus Questions
For use in a classroom, pause the video and ask these questions:
[Pause the video at 0:42] Try this task for yourself using the applet. How did you make your decisions regarding each parameter?
[Pause the video at 3:54] Claire and Mary have said that the k value of 48 represents the average annual temperature. They are also asked to describe what the A value of 27 represents. First, do you agree with Mary and Claire that 48 is the average annual temperature? Second, what do you think the A value of 27 represents in the context of temperature?
Supporting Dialogue
[Pause the video at 2:57] Mary traces along the curve and says that it represents data from January. Claire disagrees and says a single point represents the data from January. Who do you agree with and why? Tell a partner your ideas.
[Pause the video at 5:12] Claire and Mary are trying to figure out and explain what the A value of 27 means in the context of temperature. One possible explanation offered by Claire is that it is 27 degrees above zero. Talk with a partner about what you think is correct or incorrect about this explanation. How would you change it?
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