A self-test on abiotic factors and population effects, and the limitations of food web models (AC9S7U02, nodes 3 and 5, taught in class).
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.
Node 3 6 min · Node 5 6 min
A Quick check: a few questions on what students should know for AC9S7U02 nodes 3 and 5, which you teach in class. It has no board, no clip and no new teaching, and it is optional, so it never holds up course completion. Set the width with ?width=minimum, typical (default) or wider.
Use it as a self-test after your teaching, a starter, or revision. Node 3 pairs well with the Cascades lesson on screen; students can build the drought story on the food web board first.
Following an effect more than one step along the web. When a student stops at the first population, ask who eats that one.
| What you will see | A question to ask | The fix |
|---|---|---|
| A student says the drought only affects the grass. | Who eats the grass? Who eats them? | The effect cascades up: fewer grasshoppers means less food for lizards. |
| A student says a food web shows how many of each organism there are. | What does an arrow tell you? | Arrows show who eats whom and the direction of energy, not numbers. |
Stretch: Choose a different abiotic factor (temperature, light, salinity) and trace its effect through a web of your own.
Support: Give a printed web with arrows to trace with a finger, one step at a time.
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 the ideas in ONE lesson only, from the lesson "Quick check: abiotic factors and food web limits". The ideas: - Abiotic factors and population effects: I can predict and explain how a change to an abiotic factor cascades through populations in a food web. - Models, limitations and predictions: I can evaluate the limitations of food web models and explain how these affect the reliability of predictions. What understanding looks like: - Correctly defines abiotic factor and gives 3 examples - Predicts the effect of one abiotic change on one population with reasoning - Identifies at least one other population affected by the cascade - Identifies at least one limitation of food web models - Explains how that limitation affects the reliability of a specific prediction Mistakes students often make here: - A student says the drought only affects the grass. - A student says a food web shows how many of each organism there are. 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 (Matter and energy flow; Biotic factors and population effects), 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 "Quick check: abiotic factors and food web limits".
Give one abiotic factor and say how changing it would affect one population.
For example less rainfall means less grass, so fewer grasshoppers. Any reasoned chain is fine.
Back in class: a field or schoolyard ecosystem study; compare predictions with what students observe.