Students place organisms into kingdoms using observable features, justify each placement, recognise a hard-to-classify case, and see that kingdoms sort by features rather than relatedness, a model revised as evidence improved (AC9S7U01, node 2, a hinge node).
Load these into Waypoints Prepare: choose Load URL and paste the copied address, or download the file and import it. In Prepare, the worksheet's Teacher edition shows the answers; the student copy hides them.
Engage and Explore 8 min · Explain 13 min · A hard one 2 min · Evaluate 3 min · Wider adds about 3 min
A concept tutorial for introducing or revising the idea; it does not replace specimens, photos or a microscope. Set the width with ?width=minimum, typical (default) or wider.
The hinge is feature-based justification: students who sort by first impressions ("it doesn't move, so it's a plant") can't choose discriminating features when they build keys in node 4.
Kingdoms are not the endpoint. The five-kingdom scheme (common in Year 7) sorts by observable features, which is what the descriptor asks for, but it is not a family tree: fungi share a more recent common ancestor with animals than with plants, "protists" is a grab-bag of unrelated groups, and "bacteria" hides the archaea. Two Explain questions make this explicit, and the history (two kingdoms, then five, then three domains as microscopes and then DNA added evidence) shows classification as a model revised under evidence, the point about scientific rigour.
Model notes: algae such as kelp are grouped with protists here; many textbooks differ. Yeast is a single-celled fungus, so "can you see one without a microscope?" doesn't place it: it is in the sort, not the key, on purpose.
Sorting by features, especially feeding, instead of 'grows in the ground, doesn't move'. When a student calls a mushroom a plant, ask how it gets its food.
| What you will see | A question to ask | The fix |
|---|---|---|
| A student says fungi are plants. | Can a mushroom make its own food from sunlight? | No: it isn't green, and it absorbs food. That puts it with the fungi. |
| A student puts coral with plants. | How does coral get its food? | Its polyps catch food: animals. |
| A student says two organisms in the same kingdom must be close relatives. | What does the key look at: family, or features? | Features. Relatedness comes from shared ancestors, shown by DNA: a mushroom is closer to a sea star than to a fern. |
| A student says bacteria aren't alive. | Do they grow, use food and reproduce? | Yes: single-celled living things. |
Kingdom: Animals
Phylum: Chordates (animals with a backbone)
Class: Mammals
Order: Diprotodonts (Diprotodontia: kangaroos, wombats, koalas and possums)
Family: Kangaroos and wallabies (Macropodidae)
Genus: Osphranter
Species: Osphranter rufus (red kangaroo)
Stretch: Viruses can reproduce only inside living cells. Should they be in a kingdom? Argue both sides.
Support: Give the kingdom table from the primer as a card during the sort.
For a student who has done the lesson and is still stuck. They paste it into an AI tool your school allows; it asks questions about this lesson's one idea and doesn't give answers. Students see it on the course recap page only through a link ending in ?coach=1: recap with coach prompts.
You are a patient science coach for a Year 7 student in Australia. Help me understand ONE idea only, from the lesson "Plant, animal or something else?". The idea: Taxonomy: major groups and kingdoms: I can place organisms into major taxonomic groups using observable features and justify their classification. What understanding looks like: - Correctly places 5 familiar organisms into kingdoms with observable feature justification - Identifies at least one organism that is difficult to classify and explains why Mistakes students often make here: - A student says fungi are plants. - A student puts coral with plants. - A student says two organisms in the same kingdom must be close relatives. How to coach me (rules from the Waypoints Kit coach): - Ask me one short question at a time (2 to 4 sentences) and wait for my answer. Never give me the answer before you have heard my thinking, and don't hide the answer inside your question. - Start in Discover: ask me to explain the idea in my own words, or to predict what happens in a simple example. I can switch any time: "teach it back" (you play a beginner and I explain), "spot the flaw" (you show me an answer with one common mistake and I find it), or "check" (I explain, and you tell me what is solid and what to revisit). - If I am stuck or say "just tell me", ask what I think first, then give a small hint or a simpler example. Explain only after I have had a real go. - If I seem to be missing the idea that comes before this one (Purpose of classification), check it quickly, then come back. - Stay in this idea: don't teach later ideas or add extra content. If I ask about something else, say it is for another lesson and bring me back. - After you help, ask me one reflective question, such as how I know my answer is right or what I would check. - Praise my effort and method, not my ability. - You can be wrong: if I rely on something you said, remind me to check it against my notes or the lesson. If you don't know, say so. - Use simple words. - Stop when I can explain the idea in my own words and get one new example right. Then tell me to go back to the lesson "Plant, animal or something else?".
A slime grows on a dead log. It isn't green and it absorbs food from the wood. Which kingdom? Why?
Fungi: it can't make food from sunlight and it absorbs food from dead material.
Next: using dichotomous keys (node 3), the same feature-by-feature reasoning, one choice at a time. In Year 10, natural selection and common ancestry explain why relatedness, not features alone, is the basis of modern classification.
In class: a tray of specimens or photos (moss, mushroom, bread mould, insect, shell), and a microscope slide of pond water.