Invitation: “Make a small part of an explainer you can use.” Prepare: F1–F3; feeding-links aid. Selected opportunities: U02 / I04 / I08; conditional on actual component evidence, not blanket code completion.
Choose and act · 5 minutes
Offer F1 or F2 aloud. Invite: “Choose one food link. Put the resource first and the eater second.” Learners draw/name/direct two broad labelled positions immediately. Ask where they want to keep their explainer: own reference, private practice or a willing reader later. No audience is needed today.
Read and test the convention · 8 minutes
Read the chosen source capsule and point to its source ID. Make a deliberately separate teacher example of a food-resource arrow, then ask whether the point names the consumer. Clarify that a resource passes some matter and chemical energy through feeding; an animal need not move along a drawn arrow. The specific leaf examples do not describe all plant species.
Make the useful component · 12 minutes
Learners add their arrow and a resource-part label, or dictate the exact relationship. They may stop with one link. Offer C→G from F3 as an optional connection, and space nodes far enough to trace by eye/voice/touch. Read back directions without silently choosing for the learner. At minute 25, keep the work as it is for another sitting.
Trace and refine · 15 minutes
Invite: “Follow your arrow. What moves through feeding?” Learners explain matter and chemical energy in ordinary words, or point to labelled choices and give an example. Test a reversed-arrow teacher sketch: keep the actual source fact, repair the representation. Compare their work to the source only after they have made their own choice. A copied arrow without an account is a component, not inferred understanding.
Use it for a purpose · 6 minutes
Ask the learner to use their model to answer one self-chosen question, such as what can eat the listed leaves. If a willing person reads it, record only an actual question/response; if nobody reads it, learner self-use still counts. One source ID can be inscribed by an adult, with attribution named.
Keep a next move · 4 minutes
Invite: “Keep, add or change one thing?” Save the actual component or oral account privately under local practice. Note one link/reason and support, not a full grade. A plan or pass stays useful for the next invitation.
Practical check: Sample one actual source-connected choice/reason in the chosen mode. Use Day 21 routes, two worked contexts and home/extra invitation only as useful.