Students identify the cell wall, chloroplasts and large vacuole as plant-only structures and explain each, describe mitochondria and ribosomes in both cell types, and link a cell's organelles to its job (AC9S8U01, nodes 4 and 5).
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 7 min · Explain 11 min · Evaluate 3 min · Typical adds 3 min, Wider about 3 min
A concept tutorial for introducing or revising the idea; it pairs with onion and cheek cell slides. Set the width with ?width=minimum, typical (default) or wider. One lesson for two nodes (plant-specific structures, other organelles), after What does every cell have? and before Why are cells different shapes?
Not hinge nodes. The misconceptions: animal cells have walls; plants don't need mitochondria because they photosynthesise; every plant cell has chloroplasts. The prediction and the Typical step target them.
Board notes: the diagrams are not to scale and show only some mitochondria and chloroplasts. Ribosomes are too small to draw at this scale, so they appear in the questions only.
Explaining why a part exists, not just naming it. When a student lists parts, ask what the plant would do without that part, and wait for the reason before moving on.
| What you will see | A question to ask | The fix |
|---|---|---|
| A student gives an animal cell a cell wall. | What holds an animal up? | A skeleton (or water pressure in soft animals). Animal cells have a flexible membrane only. |
| A student says plants don't have mitochondria because they make their own food. | Once a plant has made glucose, how does it get energy out of it? | Respiration, in mitochondria, like animals. Plants respire all the time, day and night. |
| A student thinks every plant cell is green. | Do roots get light? | No, so root cells have no chloroplasts. Parts follow the job. |
One possible solution for each task. Other correct programs are fine.
Open task: any program that does what the step asks.
Open task: any program that does what the step asks.
Open task: any program that does what the step asks.
Open task: any program that does what the step asks.
Stretch: Fungi have cell walls but no chloroplasts. What does that suggest about how they get food? (They don't photosynthesise: they absorb food from what they grow on.)
Support: Give a two-column table to fill: Part | Plant only or both | Job.
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 8 student in Australia. Help me understand the ideas in ONE lesson only, from the lesson "What makes a plant cell different?". The ideas: - Plant-specific structures — cell wall, chloroplasts, large central vacuole: I can identify cell wall, chloroplasts and large central vacuole as plant-specific structures and explain the functional significance of each. - Additional organelles — mitochondria, ribosomes and cell specialisation: I can describe the roles of mitochondria and ribosomes as organelles present in both cell types, and recognise that cells are specialised — different cells have different organelle complements. What understanding looks like: - Identifies cell wall, chloroplasts and large central vacuole as plant-specific structures - Explains the function of each plant-specific structure - Connects each plant-specific structure to an organism-level need that animal cells do not have - States the function of mitochondria and ribosomes - Explains why a named specialised cell has more or fewer of a particular organelle - Describes cell specialisation as variation in organelle complement reflecting cell function Mistakes students often make here: - A student gives an animal cell a cell wall. - A student says plants don't have mitochondria because they make their own food. - A student thinks every plant cell is green. 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 (Cell structures shared by plant and animal cells — nucleus, membrane, cytoplasm), 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 "What makes a plant cell different?".
Name two parts a leaf cell has that a cheek cell lacks, and say what each does.
Any two of: cell wall (support), chloroplasts (photosynthesis), large vacuole (keeps the cell firm, stores sap).
Next: Why are cells different shapes? (specialisation, AC9S8U02 node 1).
In class: onion skin and Elodea leaf (chloroplasts visible) beside cheek cells; wilted and crisp lettuce in salt water and fresh water.