Invitation: “Try one new web before receiving an answer.” Prepare: STUDENT-CHECKS FW-C and fresh-c aid; held until now. Selected opportunities: U02 / I04; I01 / I06 / I08 if actually evidenced; conditional on actual component evidence, not blanket code completion.
Choose how to start · 5 minutes
Offer the unfilled FW-C source for the first time, separately from all ordinary aids. Read its exact labels and condition without modelling a prediction. Learner chooses diagram/voice/director/AAC and one component now; another sitting later is available. Privately note any prior access/help.
Encounter the source · 8 minutes
Read all four links and the light condition exactly. Explain only task vocabulary if requested; do not add a new feeding relationship, population result or probability. “Less production” is a stipulated model input, not a measured population decrease. No earlier learner trial is supplied.
First representation · 12 minutes
Learner constructs or describes one or more source-supported arrows and supplies the arrow meaning. Accept a labelled relation rather than insisting on a complete polished network. Keep the first response before any teacher-key access. At minute 25, pause without marking an incomplete component wrong.
Open prediction and question · 15 minutes
Learner chooses one possible later population effect, explains a mechanism and condition, or identifies why a direction is uncertain. A relevant question/alternative is welcome. Do not prescribe signs for all populations. Record learner wording and supports, not a secretly completed answer.
Return on learner terms · 6 minutes
Offer one neutral read-back or exact reread of the source. The learner may retain, revise or defer; distinguish a first response from revision after help. Actual paper/model operation is named; it does not become actual pond observation.
Descriptive next invitation · 4 minutes
Use the separate teacher key after the response. Identify a source-link component and one useful next invitation. No A–E grade, speed score, independent-work claim after teaching, or full inquiry coverage.
Practical check: Sample one actual source-connected choice/reason in the chosen mode. Use Day 25 routes, two worked contexts and home/extra invitation only as useful.