Students distinguish the Earth's rotation from its revolution, link each to day and night and the year, and describe the tilted axis that keeps its direction (AC9S7U03, node 1, 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 7 min · Explain 8 min · Evaluate 3 min · Typical adds 1 min, Wider about 3 min
A concept tutorial for introducing or revising the idea; it does not replace a physical model (a torch and a globe, or students walking round a lamp while turning). Set the width with ?width=minimum, typical (default) or wider.
The hinge confusion is between rotation and revolution. The board plays them separately: one day, then one year.
Board notes: sizes and distances are not to scale (the board says so). The top view shows the axis as a white line marked N, pointing the same way all year; the side view keeps the sun on the left and shows how far the axis leans towards or away from it. Day lengths are calculated for the real latitude and date (ignoring the bending of light by the air).
Keeping rotation (a day) and revolution (a year) apart. When a student mixes them, ask how long Play a day took compared with Play a year.
| What you will see | A question to ask | The fix |
|---|---|---|
| A student says the Earth goes round the sun every day. | How long did Play a year take, compared with Play a day? | One trip round the sun takes 365 days; one spin takes one day. |
| A student thinks the axis tips towards the sun in summer. | Which way did the N line point in June and in December? | The same way: the Earth moved to the other side of the sun. |
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.
Stretch: If the Earth spun the other way, where would the sun rise?
Support: Give a card with two columns, Rotation and Revolution, with time, cause and effect rows.
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 "Spinning and orbiting". The idea: Earth's rotation, revolution and axial tilt: I can distinguish Earth's rotation from revolution and explain how axial tilt relates to observable changes across a year. What understanding looks like: - Correctly distinguishes rotation from revolution - Links rotation to day/night and revolution to the year - Identifies that Earth's axis is tilted Mistakes students often make here: - A student says the Earth goes round the sun every day. - A student thinks the axis tips towards the sun in summer. 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. - 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 "Spinning and orbiting".
What is the difference between rotation and revolution?
Rotation is the Earth spinning on its axis (once a day, causing day and night); revolution is the Earth travelling round the sun (once a year).
Next: seasons (node 4), then the moon (nodes 2, 3 and 5).
In class: a lamp and a globe or a ball on a skewer; students walk the orbit while turning.