Logarithms Lesson 3 Episode 3 (Teachers)

Repeating Your Reasoning

Download Math Task Link to on-line calculator

Arobindo and Josh use their number line and a calculator to determine when the pizza slice had 110 grams of mold. 


Episode Supports

Focus Questions

For use in a classroom, pause the video and ask this question:

[Pause the video at 0:24] Find the hour when there was 110 grams of mold on the pizza.

Supporting Dialogue

After watching the video, ask your students to talk with each other to summarize the key ideas of this lesson so far. Highlight student talk that emphasizes the nature of the tasks (e.g., finding exponents or the time at which there is a certain amount of mold) and encourage discussion about the methods that have been used so far.