case 1

Day 1 Clip 1

In this first clip we see Ms. Coombs focus students’ attention on rate of change.

 

Day 1 Clip 2

Ms Coombs continues to work through the earlier task. 

 

Day 1 Clip 3

After giving students time to work on the problem, Ms. Coombs continues the discussion of the rate of change step function. 

 

Day 1 Clip 4

Ms. Coombs leads the class in thinking about the impact of changing the step interval on the rate of change graph from 1 to ½ units.

 

Day 1 Clip 5

In this clip, Ms. Coombs asks students what they meant by “more specific.” She leads into this question by pushing the step size down to 0.1 units.

 

Day 1 Clip 6

Ms. Coombs continues to ask students about what happens to the rate of change graph and the resulting function graph as the interval size gets smaller and smaller. 

 

Day 1 Clip 7

Using the Graphing Calculator software, Ms. Coombs shows students what happens to the graph of an original function when the step size decreases on its corresponding rate of change graph.

 

Day 1 - Clip 5


In this clip, Ms. Coombs asks students what they meant by “more specific.” She leads into this question by pushing the step size down to 0.1 units. Additionally, Ms. Coombs directs the class in a discussion about the implications these smaller step sizes have on the resulting graph.

























 

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