Phase: | Before/Engage |
Activity: | Students will watch the short video clip from the link, during the times of 1:20-2:15. As students are watching the graph illustration for different viruses, students will record all observations and questions they may have about the video. They should pay specific attention to how different viruses affect people at different rates. Once the students have completed their writing, a whole class discussion focused on their observations and questions should take place with the lens of orienting students to how the different rates of spread compare. |
Assessment Strategies: | As this is a before activity to activate students' prior knowledge, a quick poll of the classroom asking students to identify the virus that has the fastest and or slowest spread is sufficient to gauge their understanding of comparative rates of change. The poll can be conducted by having students raise their hands or a premade poll that uses technology can be used to collect data if it is available. |
Advanced Preparation: | The teacher should watch the video clip beforehand and make notes of possible student observations and questions. The teacher should also make a ranked list of the rates of spread for the viruses to easily assess where the students are in their understanding. |
Variation Tips (optional): | |
Notes or Recommendations (optional): | ALCOS 2019 24. Distinguish between situations that can be modeled with linear functions and those that can be modeled with exponential functions. a. Show that linear functions grow by equal differences over equal intervals, while exponential functions grow by equal factors over equal intervals. b. Define linear functions to represent situations in which one quantity changes at a constant rate per unit interval relative to another. c. Define exponential functions to represent situations in which a quantity grows or decays by a constant percent rate per unit interval relative to another. |
Keywords and Search Tags: | Disease, Exponential Functions, Social Distancing, Virus |