Students compare the nervous and endocrine systems by message, route, speed, duration and target (AC9S9U01, node 4, 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 6 min · Explain 9 min · Evaluate 3 min · Typical adds 2 min, Wider about 2 min
A concept tutorial for introducing or revising the idea. Set the width with ?width=minimum, typical (default) or wider.
The hinge misconception is that hormones travel along nerves. The Engage question puts it directly.
Board notes: the race is schematic, compressing about 10 minutes into 5 seconds; the curves show shape (sharp spike against slow rise and long tail), not real values.
Choosing nerve or hormone by speed, reach and how long the effect lasts. When a student picks one, ask whether it would be quick enough to pull a hand off a hot pan.
| What you will see | A question to ask | The fix |
|---|---|---|
| A student thinks adrenaline goes only to the heart. | What carries it? | The blood, which goes everywhere; only cells with receptors respond. |
| A student says hormones are 'better' because they last longer. | Would a hormone help you pull away from a hot pan? | No: each system suits a different job. |
Stretch: Why would a fault in a hormone receptor have the same effect as having no hormone?
Support: Give the comparison table with rows already labelled.
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 9 student in Australia. Help me understand ONE idea only, from the lesson "Nerve or hormone?". The idea: Comparing nervous and endocrine coordination: I can compare the nervous and endocrine systems on signal type, speed, duration, and specificity, and predict which system coordinates a given stimulus. What understanding looks like: - Compares the nervous and endocrine systems on signal type, speed, and duration - Predicts which system coordinates a given novel stimulus and justifies the prediction Mistakes students often make here: - A student thinks adrenaline goes only to the heart. - A student says hormones are 'better' because they last longer. 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 (Nervous and endocrine systems as coordination mechanisms — signal types and timescales), 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 "Nerve or hormone?".
Give two differences between a nervous and a hormonal response.
Nerves: electrical, fast, short-lived, one place. Hormones: chemical in the blood, slower, longer-lasting, target cells everywhere.
Next: negative feedback (node 5), using both systems to control body temperature.