mod 1

Day 6 clip 1: How to Talk about Covariation

Prior to day six, Ms. Coombs and Dr. Thompson discussed the need for classroom rules to guide discussions about moving objects. 

Day 6 clip 2: Exploring the Bungee Jumper Video Frame By Frame

In this segment, also from day six, the class continues discussing the video of a bungee jumper.

Day 6 clip 3: Ms. Coombs Discusses Students' Graphs

In this third video clip from day six, Ms. Coombs asks the students to watch a replay of the bungee jumping video while referring to three student-generated graphs of the relationship of changes in time and changes in vertical distance from the ground. 

Day 6 clip 4: How Graphs Show Speed

In this fourth segment from day six, Ms. Coombs asks students to refer to the frame-by-frame version of the bungee jumping video in order to discuss how the student-generated graphs show speed.

Day 6 clip 5: Discussion of Students' Thinking and How It Arose

After discussing Day Six with Dr. Thompson, Ms. Coombs agrees that the students appear to be graphing the path of the jump instead of thinking about co-varying quantities.   

Day 6 - Clip 1
How to Talk about Covariation

Prior to day six, Ms. Coombs and Dr. Thompson discussed the need for classroom rules to guide discussions about moving objects. This need emerged from perceived problems in the students’ work such as Zach creating the same graph for both (1) distance above the ground as a function of time since the jumper leapt and (2) speed of the jumper as a function of time since he leapt.

On day six, Ms. Coombs began by talking with the students about rules for discussing situations about moving objects. The students are charged with only speaking about how distance changes as time changes. Ms. Coombs next provides a situation in which students are to apply the rules. The situation is a video of a bungee jumper leaping from a bridge.

 

-Day 1 -Day 2 -Day 3 -Day 4 -Day 5 -Day 6 -Day 7