ESSENTIAL QUESTION: What causes populations to change?
RELEVANCE: Is immigration really that bad?
NGSSS: SC.912.L.17.5; MAFS.912.N-Q.1.1; LAFS.910.SL.1.1
LEARNING OBJECTIVES: Students will be able to:
-Utilize data and information about population dynamics, abiotic factors, and/or biotic factors to explain and/or analyze a change in carrying capacity and its effect on population size in an ecosystem.
-Compare the different types of growth in a species population.
-Identify limiting factors and other population dynamics.
BELL RINGER - Why might the sheep population change over time?
VOCABULARY: population, limiting factors, carrying capacity, competition, density, emigration, immigration
HOME LEARNING: HL 2 - CER from invasive species lesson
AGENDA
WHOLE GROUP
Students answered the bell ringer based on their knowledge of what causes populations to change.
We reviewed the information from the video and the article so that students can write an informed CER on the two reliable sources. Students were instructed to use their planning sheet to write cohesive answers for each section.
We examined how changing different parameters affected the population of sheet, using the following site: Population Explosion. Students should read each scenario and follow the instructions.
Finally, students should try the math-related activity to learn how exponential growth works. These real-world situations should interest anyone who wishes to multiply their money! Click the link to try it! Compound Interest
SMALL GROUP/INDEPENDENT PRACTICE/DI
Students who complete work early should to to Edgenuity and work on the topics they received less than 70% from the last exam
HOTS:
-What factors are causing a change in the population of the Everglades? Are these factors reversible? Why or why not?
-Describe the factors that would limit the carrying capacity of the Florida Everglades.
-Describe the factors that would limit the carrying capacity of the Florida Everglades.
EXIT STRATEGY:
Answer the following via discussion:
1. Many animals – for example, mosquitoes and fish – may lay thousands of eggs in one year.
Why might this be a good survival strategy? Why don’t they take over the world?
2. For some animals, as the population gets denser, the reproduction rate goes down. For example, mice reduce the size of their litter if the food supply is limited. Why would this be useful?
