Quick summary: Students will think about how we group animals using common features. They will be guided on how to interpret worded information to be able to use a dichotomous key. Finally, they will use a dichotomous key on various organisms in small groups.
- Students understand that scientists look at certain features to group organisms
- Students understand why a dichotomous key is used to group organisms based on similarities and differences
- Students understand how to use a dichotomous key to classify organisms.
21st century skills:
Australian Curriculum Mapping
Year 7 Science
- Classification helps organise the diverse group of organisms (ACSSU111)
- Collaboratively and individually plan and conduct a range of investigation types, including fieldwork and experiments, ensuring safety and ethical guidelines are followed (ACSIS125)
Syllabus outcomes: SC4-14LW, SC4-5WS.
Cross-curriculum priority: Sustainability OI.2.
Relevant parts of Year 7 achievement standards: Students predict the effect of human and environmental changes on interactions between organisms and classify and organise diverse organisms based on observable differences. They summarise data from different sources.
Topic: STEM, Sustainability, Biodiversity.
This lesson is part of the wider unit of work Backyard Bush Blitz – Year 7.
Time required: 60 mins.
Level of teacher scaffolding: Medium – facilitate a whole-class class activity
- Bush Blitz Species Information Sheet
- Bush Blitz Species – Presentation
- Device capable of presenting information to the class on the board
- Student Worksheets (one copy per student).
Keywords: Dichotomous key, classification, taxonomy, Bush Blitz.
Bush Blitz is Australia’s largest nature discovery program, with the Bush Blitz TeachLive component delivered by Earthwatch Australia, who kindly provided the images in these lessons. Thank you to the Ian Potter Foundation, John T Reid Charitable Trusts and The Myer Foundation for generously supporting the development of these lessons.
Cool Australia’s curriculum team continually reviews and refines our resources to be in line with changes to the Australian Curriculum.