Lesson Plan: B2.5.02

Hamble Lesson Observation Plan
Learning About
What is the difference between abiotic and biotic factors?
Keywords:
    Memory Anchor:
    Method Precise Learning Objective Linked Question / Activity
    (Designed for maximum working out)
    Stepping Stones Pitstop Check
    (Thinking Map)
    Students should be able to explain how a change in an abiotic factor would affect a given community given appropriate data or context. What is an abiotic factor?

    Abiotic (non-living) factors which can affect a community are: - light intensity - temperature - moisture levels - soil pH and mineral content - wind intensity and direction - carbon dioxide levels for plants - oxygen levels for aquatic animals. What abiotic (non-living) factors affect a community?

    Students should be able to extract and interpret information from charts, graphs and tables relating to the effect of abiotic factors on organisms within a community. Extract and interpret information from charts, graphs and tables. (MS)

    Students should be able to explain how a change in a biotic factor might affect a given community given appropriate data or context. What is a biotic factor?

    Biotic (living) factors which can affect a community are: - availability of food - new predators arriving - new pathogens - one species out-competing another so the numbers are no longer sufficient to breed. What types of Biotic (living) factors affect a community?

    Students should be able to extract and interpret information from charts, graphs and tables relating to the effect of biotic factors on organisms within a community.

    (WS) Extract and interpret information from charts, graphs and tables

    Students should understand that photosynthetic organisms are the producers of biomass for life on Earth. What are the producers of biomass for life on Earth?

    Feeding relationships within a community can be represented by food chains. How can feeding relationships be represented?

    All food chains begin with a producer which synthesises molecules. This is usually a green plant or alga which makes glucose by photosynthesis. What do all food chains begin with?

    In relation to abundance of organisms students should be able to understand the terms mean, mode and median (MS) What is the difference between mean, mode and median?

    In relation to abundance of organisms students should be able to calculate arithmetic means (MS)

    In relation to abundance of organisms students should be able to plot and draw appropriate graphs selecting appropriate scales for the axes (MS)

    Producers are eaten by primary consumers, which in turn may be eaten by secondary consumers and then tertiary consumers What is the order of energy transfer between secondary consumer, tertiary consumer, producer and primary consumer

    Consumers that kill and eat other animals are predators, and those eaten are prey. What is an organism that eats a consumer called? What is a consumer that is eaten by another consumer called?

    In a stable community the numbers of predators and prey rise and fall in cycles. What is a predator-prey cycle?

    Interpret graphs used to model predator-prey cycles (WS) (MS)

    Students are to describe and explain the predator-prey graph for foxes and rabbits.

    Students should be able to interpret graphs used to model these cycles.

    Links To the Big Ideas
    ForcesParticlesEnergyCells