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Lesson

9th Grade Math – Using Functions

Clip 13/18: Lesson Part 2D

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After the selected groups have shared their commentaries, Lisa Hennefarth asks students to turn and talk about “which one gave you the most amount of detail, which one gave you the biggest picture you could follow, what are some of the words you remember them using?” Students talk to each other, and Lisa engages them, asking “what’s the difference between yours and what you heard?” Once the whole group discussion begins, Lisa elicits students’ responses. One says “We didn’t say what time, we went on what was happening.” As the bell rings, she asks another student, “Which one did you like?” He responds, “The last one, because they used time and function language.” Lisa closes by praising the group’s work and dismissing them to their next class.

Teacher Commentary

Lisa Hennefarth

The question was always, “Could you visualize what the story is telling you?” If you think about in a just very generic way, the very first set of students that went up and talked gave it in a very kind of global manner, it was good. But group two gave a little bit more detail, like they called out times, and then group three gave even more details. So I could ask, “What do you think you're able to envision if you didn't have the graph in front of you? Could you visualize it based on what you're being told?”

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