◆ Supported
Sort feature cards for two sources and complete a supports/does-not-show frame.
0 min
Lesson overviewBUILD · Science · Week 16B · Explore and apply
Fossil Evidence
Verbatim workbook outcome: Explain what fossils tell us about living things from long ago. · Trace: 'BUILD Weekly - Spring'!C29
Objective: Compare fossil clues from two supplied sources and build an evidence-led explanation about living things from long ago.
Success evidence:
- Compare fossil clues from two supplied sources and build an evidence-led explanation about living things from long ago.
- Two fossil sources can address different questions rather than confirming each other.
- A difference can reveal variation, preservation limits or an unanswered question.
BUILD Science40 minutesoffline
FOCUS→EVIDENCE→LIMIT
Evidence gate: record → question → cautious claim → limit.
wait · self-prompt · visual cue · general verbal · specific verbal · model · direct support · fade
Staff card: preserve the learning goal; change modality before changing demand.
Modal guidance carrier.
▲ Standard
Compare two fossil sources and write a two-source explanation with one limit.
★ Stretch
Evaluate whether the sources corroborate, complicate or answer different questions, then defend the classification.
Truth boundary: never backdate, never reconstruct a quotation, never stage an event, and never convert adult wording into the learner’s voice. Use only school-approved local materials. No diagnosis or medical advice. No personal or family disclosure. Learning does not depend on a runtime connection. No open runtime link. Never invent a result, date, quotation, event, audience response or learner wording. Use only approved local images, replicas or clean specimens; no runtime research is required. A learner may pause, use a private route, observe, or direct an adult without losing the learning entitlement.
A two-source fossil explanation · entry map: A comparison must retain each source label and observable feature. Link that anchor only when this second detail is relevant: Agreement strengthens only the specific claim both sources can address. For this a two-source fossil explanation decision, use a printed choice, object placement, short phrase, symbol response or learner-directed mark; the learner still chooses the evidence, order, comparison or action. Staff supporting a two-source fossil explanation may steady the named materials and read the displayed source exactly. They do not upgrade the a two-source fossil explanation response, fill its missing result or convert its plan into completion. If access to a two-source fossil explanation stalls, pause, lower visual density or move to the printed route while keeping the same reasoning demand.
SPACEVOICEAUDIENCEINFLUENCE
SPACE stays available. VOICE is received. AUDIENCE names back exactly. INFLUENCE changes one real next action.
3 min
Arrival · retrieveRetrieve without guessing
Two fossil sources can address different questions rather than confirming each other.
A comparison must retain each source label and observable feature.
Agreement strengthens only the specific claim both sources can address.
A difference can reveal variation, preservation limits or an unanswered question.
Arrival decision: Two fossil sources can address different questions rather than confirming each other. A difference can reveal variation, preservation limits or an unanswered question.
A two-source fossil explanation · first source: Agreement strengthens only the specific claim both sources can address. Link that anchor only when this second detail is relevant: A difference can reveal variation, preservation limits or an unanswered question. For this a two-source fossil explanation decision, use pointing, selecting, signing, speaking, typing or exact-word scribing; the learner still chooses the evidence, order, comparison or action. Staff supporting a two-source fossil explanation may steady the named materials and read the displayed source exactly. They do not upgrade the a two-source fossil explanation response, fill its missing result or convert its plan into completion. If access to a two-source fossil explanation stalls, pause, lower visual density or move to the printed route while keeping the same reasoning demand.
SPACEVOICEAUDIENCEINFLUENCE
SPACE stays available. VOICE is received. AUDIENCE names back exactly. INFLUENCE changes one real next action.
3 min
Starter · create the needHow does using more than one fossil clue strengthen or complicate an explanation?
1 · notice
2 · choose
3 · explain
How does using more than one fossil clue strengthen or complicate an explanation? A comparison must retain each source label and observable feature.
Checking questions:
- Two fossil sources can address different questions rather than confirming each other.
- A comparison must retain each source label and observable feature.
- Agreement strengthens only the specific claim both sources can address.
- A difference can reveal variation, preservation limits or an unanswered question.
A two-source fossil explanation · initial comparison: A difference can reveal variation, preservation limits or an unanswered question. Link that anchor only when this second detail is relevant: Two fossil sources can address different questions rather than confirming each other. For this a two-source fossil explanation decision, use a quiet card sort, a spoken response, a communication aid or adult handling directed by the learner; the learner still chooses the evidence, order, comparison or action. Staff supporting a two-source fossil explanation may steady the named materials and read the displayed source exactly. They do not upgrade the a two-source fossil explanation response, fill its missing result or convert its plan into completion. If access to a two-source fossil explanation stalls, pause, lower visual density or move to the printed route while keeping the same reasoning demand.
SPACEVOICEAUDIENCEINFLUENCE
SPACE stays available. VOICE is received. AUDIENCE names back exactly. INFLUENCE changes one real next action.
4 min
I Do · modelA two-source fossil explanation
COMPAREidentify a relevant similarity and difference
CORROBORATEadd evidence that supports the same bounded idea
CONTRADICTshow that an explanation needs revision
Vocabulary in use
- COMPARE in a two-source fossil explanation: identify a relevant similarity and difference. Apply COMPARE when this anchor matters—Two fossil sources can address different questions rather than confirming each other.—and check it beside this second anchor: A comparison must retain each source label and observable feature.
- CORROBORATE in a two-source fossil explanation: add evidence that supports the same bounded idea. Apply CORROBORATE when this anchor matters—A comparison must retain each source label and observable feature.—and check it beside this second anchor: Agreement strengthens only the specific claim both sources can address.
- CONTRADICT in a two-source fossil explanation: show that an explanation needs revision. Apply CONTRADICT when this anchor matters—Agreement strengthens only the specific claim both sources can address.—and check it beside this second anchor: A difference can reveal variation, preservation limits or an unanswered question.
Place two approved fossil images side by side. Describe each before comparing. Link only features that address the same question, then label the relation as supports, complicates or unrelated. Write one explanation that uses both sources and one sentence stating what neither source can decide.
- Two fossil sources can address different questions rather than confirming each other.
- A comparison must retain each source label and observable feature.
- Agreement strengthens only the specific claim both sources can address.
- A difference can reveal variation, preservation limits or an unanswered question.
- Compare fossil clues from two supplied sources and build an evidence-led explanation about living things from long ago.
Staff-only guidance: model one complete route, remove the model, and receive a fresh learner decision.
A two-source fossil explanation · worked reasoning: Two fossil sources can address different questions rather than confirming each other. Link that anchor only when this second detail is relevant: A comparison must retain each source label and observable feature. For this a two-source fossil explanation decision, use a printed choice, object placement, short phrase, symbol response or learner-directed mark; the learner still chooses the evidence, order, comparison or action. Staff supporting a two-source fossil explanation may steady the named materials and read the displayed source exactly. They do not upgrade the a two-source fossil explanation response, fill its missing result or convert its plan into completion. If access to a two-source fossil explanation stalls, pause, lower visual density or move to the printed route while keeping the same reasoning demand.
SPACEVOICEAUDIENCEINFLUENCE
SPACE stays available. VOICE is received. AUDIENCE names back exactly. INFLUENCE changes one real next action.
3 min
We Do · everyone commitsHow does using more than one fossil clue strengthen or complicate an explanation?
Agreement strengthens only the specific claim both sources can address. A difference can reveal variation, preservation limits or an unanswered question.
Audience check: the adult names back exactly what was received. The learner confirms or corrects before the class moves on.
A two-source fossil explanation · hinge decision: A comparison must retain each source label and observable feature. Link that anchor only when this second detail is relevant: Agreement strengthens only the specific claim both sources can address. For this a two-source fossil explanation decision, use pointing, selecting, signing, speaking, typing or exact-word scribing; the learner still chooses the evidence, order, comparison or action. Staff supporting a two-source fossil explanation may steady the named materials and read the displayed source exactly. They do not upgrade the a two-source fossil explanation response, fill its missing result or convert its plan into completion. If access to a two-source fossil explanation stalls, pause, lower visual density or move to the printed route while keeping the same reasoning demand.
SPACEVOICEAUDIENCEINFLUENCE
SPACE stays available. VOICE is received. AUDIENCE names back exactly. INFLUENCE changes one real next action.
3 min
I Do 2 · connectA two-source fossil explanation
Available evidence
Two fossil sources can address different questions rather than confirming each other.
Reasoning move
A comparison must retain each source label and observable feature.
Boundary or next check
A difference can reveal variation, preservation limits or an unanswered question.
Two fossil sources can address different questions rather than confirming each other. A difference can reveal variation, preservation limits or an unanswered question.
Place two approved fossil images side by side. Describe each before comparing. Link only features that address the same question, then label the relation as supports, complicates or unrelated. Write one explanation that uses both sources and one sentence stating what neither source can decide. Complete a paired fossil evidence sheet. Record the source labels, observable features, one relevant similarity and one difference. Use the comparison to write a bounded explanation about a living thing from long ago. Add an alternative explanation or preservation limit and identify the next source that would be useful. Two fossil sources can address different questions rather than confirming each other. A comparison must retain each source label and observable feature. Agreement strengthens only the specific claim both sources can address. A difference can reveal variation, preservation limits or an unanswered question. Sort feature cards for two sources and complete a supports/does-not-show frame. Compare two fossil sources and write a two-source explanation with one limit. Evaluate whether the sources corroborate, complicate or answer different questions, then defend the classification. Build a comparison grid with Source A and Source B kept visible in every row. First ask whether both sources address body form, movement, feeding or environment; do not compare clues serving different questions. Next mark agreement only where the observable features genuinely align. Use COMPLICATES when preservation, scale or feature differences require a narrower account. Use UNRELATED when a second source adds interest but no evidence for the chosen question. Finish by writing the two locators beside the claim and one sentence describing what neither fossil source can establish.
A two-source fossil explanation · second connection: Agreement strengthens only the specific claim both sources can address. Link that anchor only when this second detail is relevant: A difference can reveal variation, preservation limits or an unanswered question. For this a two-source fossil explanation decision, use a quiet card sort, a spoken response, a communication aid or adult handling directed by the learner; the learner still chooses the evidence, order, comparison or action. Staff supporting a two-source fossil explanation may steady the named materials and read the displayed source exactly. They do not upgrade the a two-source fossil explanation response, fill its missing result or convert its plan into completion. If access to a two-source fossil explanation stalls, pause, lower visual density or move to the printed route while keeping the same reasoning demand.
SPACEVOICEAUDIENCEINFLUENCE
SPACE stays available. VOICE is received. AUDIENCE names back exactly. INFLUENCE changes one real next action.
4 min
We Do 2 · labA two-source fossil explanation decision lab
◆ Supported
Sort feature cards for two sources and complete a supports/does-not-show frame.
▲ Standard
Compare two fossil sources and write a two-source explanation with one limit.
★ Stretch
Evaluate whether the sources corroborate, complicate or answer different questions, then defend the classification.
Complete a paired fossil evidence sheet. Record the source labels, observable features, one relevant similarity and one difference. Use the comparison to write a bounded explanation about a living thing from long ago. Add an alternative explanation or preservation limit and identify the next source that would be useful.
A two-source fossil explanation · guided audit: A difference can reveal variation, preservation limits or an unanswered question. Link that anchor only when this second detail is relevant: Two fossil sources can address different questions rather than confirming each other. For this a two-source fossil explanation decision, use a printed choice, object placement, short phrase, symbol response or learner-directed mark; the learner still chooses the evidence, order, comparison or action. Staff supporting a two-source fossil explanation may steady the named materials and read the displayed source exactly. They do not upgrade the a two-source fossil explanation response, fill its missing result or convert its plan into completion. If access to a two-source fossil explanation stalls, pause, lower visual density or move to the printed route while keeping the same reasoning demand.
SPACEVOICEAUDIENCEINFLUENCE
SPACE stays available. VOICE is received. AUDIENCE names back exactly. INFLUENCE changes one real next action.
16 min
Independent · evidenceIndependent record · A two-source fossil explanation
Complete a paired fossil evidence sheet. Record the source labels, observable features, one relevant similarity and one difference. Use the comparison to write a bounded explanation about a living thing from long ago. Add an alternative explanation or preservation limit and identify the next source that would be useful.
◆ Supported
Sort feature cards for two sources and complete a supports/does-not-show frame.
▲ Standard
Compare two fossil sources and write a two-source explanation with one limit.
★ Stretch
Evaluate whether the sources corroborate, complicate or answer different questions, then defend the classification.
Trace
Two fossil sources can address different questions rather than confirming each other.
Demand
Agreement strengthens only the specific claim both sources can address.
Truth
A difference can reveal variation, preservation limits or an unanswered question.
Exit route remains available: pause, use the print pack, reduce visual density or direct an adult. The named learning demand remains available.
A two-source fossil explanation · independent record: Two fossil sources can address different questions rather than confirming each other. Link that anchor only when this second detail is relevant: A comparison must retain each source label and observable feature. For this a two-source fossil explanation decision, use pointing, selecting, signing, speaking, typing or exact-word scribing; the learner still chooses the evidence, order, comparison or action. Staff supporting a two-source fossil explanation may steady the named materials and read the displayed source exactly. They do not upgrade the a two-source fossil explanation response, fill its missing result or convert its plan into completion. If access to a two-source fossil explanation stalls, pause, lower visual density or move to the printed route while keeping the same reasoning demand.
SPACEVOICEAUDIENCEINFLUENCE
SPACE stays available. VOICE is received. AUDIENCE names back exactly. INFLUENCE changes one real next action.
4 min
Exit · Audience and InfluenceAudience receives; Influence changes one next action
Show the two-source claim and point to the clue from each source. The adult repeats only that claim. Confirm it or move one clue out of the explanation.
SPACE: the learner may pause or choose a private response.
VOICE: the evidence statement remains in the learner’s chosen communication mode.
AUDIENCE: a familiar adult receives and names back exactly what was heard or seen.
INFLUENCE: one real next action is recorded: retain, add method detail, or leave open.
Final check: no result, quote, date, event or pupil wording has been created to make the map look complete. The HTML stores no learner response.
A two-source fossil explanation · receiving point: A comparison must retain each source label and observable feature. Link that anchor only when this second detail is relevant: Agreement strengthens only the specific claim both sources can address. For this a two-source fossil explanation decision, use a quiet card sort, a spoken response, a communication aid or adult handling directed by the learner; the learner still chooses the evidence, order, comparison or action. Staff supporting a two-source fossil explanation may steady the named materials and read the displayed source exactly. They do not upgrade the a two-source fossil explanation response, fill its missing result or convert its plan into completion. If access to a two-source fossil explanation stalls, pause, lower visual density or move to the printed route while keeping the same reasoning demand.
SPACEVOICEAUDIENCEINFLUENCE
SPACE stays available. VOICE is received. AUDIENCE names back exactly. INFLUENCE changes one real next action.