This 16-minute video lesson discusses exponential growth involving bacteria (some calculus in part c). [Calculus playlist: Lesson 101 of 156]
Can folding a piece of paper 45 times get you to the moon? By seeing what happens when folding just one piece of paper, we see the unbelievable potential of exponential growth. This lesson will leave you wanting to grab a piece of paper to see how many times you can fold it! The Lesson is by Adrian Paenza and the animation by is by TED-Ed. A quiz, thought provoking question, and links for further study are provided to create a lesson around the 6-minute video. Educators may use the platform to easily "Flip" or create their own lesson for use with their students of any age or level.
In this video from Cyberchase, the CyberSquad uses a magic lily pad to escape from a desert island.
This lesson reinforces the idea that Earth's population, including the population of the United States, is growing at a dramatic rate. It discusses some of the basics of demography, the study of population and its changes, and introduces key terms.
Two strains of Escherichia coli are grown in broth and plated out at intervals. A population growth curve is plotted for each strain. The two strains are then grown together for several days in different types of broth. Students from each day's laboratory plate out the mixed culture on selective media. Data are pooled. Population curves are plotted for the two strains in competition. With different conditions, it is possible to observe competitive displacement of one strain by another.
