◆ Supported
Use OBSERVED and EXPLAINED columns with sentence frames and identify the changing variant from a supplied graph.
0 min
Lesson overviewLAUNCH · Science · Week 15L2 · Explore
Natural selection evidence
Verbatim workbook outcome: Explain variation & evolution by natural selection. · Trace: LAUNCH Weekly - Spring!C28
Objective: Interpret supplied evidence for variation and natural selection, separating observations from explanation.
Success evidence:
- Interpret supplied evidence for variation and natural selection, separating observations from explanation.
- A table or graph can show variant counts or frequencies before and after a stated environmental pressure.
- The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty.
40 minutesofflineFoundation route
FOCUS→EVIDENCE→LIMIT
wait · self-prompt · visual cue · general verbal · specific verbal · model · direct support · fade
Staff card: preserve the scientific demand; change access or response mode before demand.
Staff card: keep supplied observations separate from explanation and missing evidence.
Preparation guidance carrier.
Access guidance carrier.
Evidence guidance carrier.
▲ Standard
Describe each trend accurately, connect it to the selection sequence and state one evidence limit.
★ Stretch
Evaluate whether the sources support selection, alternative factors or both, and specify the additional evidence needed.
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 school-approved local sources and supplied classroom materials. No open runtime link. No diagnosis or personal or family disclosure. A learner may pause, use the printed route, respond privately or direct an adult. A learner may pause, use a private route, observe, or direct an adult without losing the learning entitlement.
Variation and natural-selection evidence · entry map: The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty. Link that anchor only when this second detail is relevant: A table or graph can show variant counts or frequencies before and after a stated environmental pressure. For this variation and natural-selection evidence 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 variation and natural-selection evidence may steady the named materials and read the displayed source exactly. They do not upgrade the variation and natural-selection evidence response, fill its missing result or convert its plan into completion. If access to variation and natural-selection evidence 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
A table or graph can show variant counts or frequencies before and after a stated environmental pressure.
A trend is described with variables and direction before a cause is proposed.
Natural-selection explanation requires inherited variation, differential reproductive success and generations, not only a changing count.
The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty.
Arrival decision: A table or graph can show variant counts or frequencies before and after a stated environmental pressure. The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty.
Variation and natural-selection evidence · first source: A table or graph can show variant counts or frequencies before and after a stated environmental pressure. Link that anchor only when this second detail is relevant: A trend is described with variables and direction before a cause is proposed. For this variation and natural-selection evidence 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 variation and natural-selection evidence may steady the named materials and read the displayed source exactly. They do not upgrade the variation and natural-selection evidence response, fill its missing result or convert its plan into completion. If access to variation and natural-selection evidence 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 needWhich patterns are directly observed in the supplied data, and which natural-selection explanation is supported but inferred?
1 · notice
2 · choose
3 · explain
Which patterns are directly observed in the supplied data, and which natural-selection explanation is supported but inferred? A trend is described with variables and direction before a cause is proposed.
Checking questions:
- A table or graph can show variant counts or frequencies before and after a stated environmental pressure.
- A trend is described with variables and direction before a cause is proposed.
- Natural-selection explanation requires inherited variation, differential reproductive success and generations, not only a changing count.
- The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty.
Variation and natural-selection evidence · initial comparison: A trend is described with variables and direction before a cause is proposed. Link that anchor only when this second detail is relevant: Natural-selection explanation requires inherited variation, differential reproductive success and generations, not only a changing count. For this variation and natural-selection evidence decision, use pointing, selecting, signing, speaking, typing or exact-word scribing; the learner still chooses the evidence, order, comparison or action. Staff supporting variation and natural-selection evidence may steady the named materials and read the displayed source exactly. They do not upgrade the variation and natural-selection evidence response, fill its missing result or convert its plan into completion. If access to variation and natural-selection evidence 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 · modelVariation and natural-selection evidence
FREQUENCYhow common a variant is in the measured population
TRENDa general direction in data across groups or time
EXPLANATIONa reasoned account connecting evidence with a scientific process
Vocabulary in use
- FREQUENCY in variation and natural-selection evidence: how common a variant is in the measured population. Apply FREQUENCY when this anchor matters—A table or graph can show variant counts or frequencies before and after a stated environmental pressure.—and check it beside this second anchor: A trend is described with variables and direction before a cause is proposed.
- TREND in variation and natural-selection evidence: a general direction in data across groups or time. Apply TREND when this anchor matters—A trend is described with variables and direction before a cause is proposed.—and check it beside this second anchor: Natural-selection explanation requires inherited variation, differential reproductive success and generations, not only a changing count.
- EXPLANATION in variation and natural-selection evidence: a reasoned account connecting evidence with a scientific process. Apply EXPLANATION when this anchor matters—Natural-selection explanation requires inherited variation, differential reproductive success and generations, not only a changing count.—and check it beside this second anchor: The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty.
Read the axes and source label on a supplied fictional population graph. Describe the observed change without causal language: the darker variant frequency increased across the recorded generations. Then connect the pattern to the stated selection pressure and inherited variation. Add a limit: the graph alone does not establish every mechanism or rule out all alternative factors.
- A table or graph can show variant counts or frequencies before and after a stated environmental pressure.
- A trend is described with variables and direction before a cause is proposed.
- Natural-selection explanation requires inherited variation, differential reproductive success and generations, not only a changing count.
- The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty.
- Interpret supplied evidence for variation and natural selection, separating observations from explanation.
Staff-only guidance: model one complete route, remove the model, and receive a fresh learner decision.
Variation and natural-selection evidence · worked reasoning: Natural-selection explanation requires inherited variation, differential reproductive success and generations, not only a changing count. Link that anchor only when this second detail is relevant: The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty. For this variation and natural-selection evidence 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 variation and natural-selection evidence may steady the named materials and read the displayed source exactly. They do not upgrade the variation and natural-selection evidence response, fill its missing result or convert its plan into completion. If access to variation and natural-selection evidence 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 commitsWhich patterns are directly observed in the supplied data, and which natural-selection explanation is supported but inferred?
Natural-selection explanation requires inherited variation, differential reproductive success and generations, not only a changing count. The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty.
Audience check: the adult names back exactly what was received. The learner confirms or corrects before the class moves on.
Variation and natural-selection evidence · hinge decision: The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty. Link that anchor only when this second detail is relevant: A table or graph can show variant counts or frequencies before and after a stated environmental pressure. For this variation and natural-selection evidence 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 variation and natural-selection evidence may steady the named materials and read the displayed source exactly. They do not upgrade the variation and natural-selection evidence response, fill its missing result or convert its plan into completion. If access to variation and natural-selection evidence 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 · connectVariation and natural-selection evidence
Available evidence
A table or graph can show variant counts or frequencies before and after a stated environmental pressure.
Reasoning move
A trend is described with variables and direction before a cause is proposed.
Boundary or next check
The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty.
A table or graph can show variant counts or frequencies before and after a stated environmental pressure. The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty.
Read the axes and source label on a supplied fictional population graph. Describe the observed change without causal language: the darker variant frequency increased across the recorded generations. Then connect the pattern to the stated selection pressure and inherited variation. Add a limit: the graph alone does not establish every mechanism or rule out all alternative factors. Interpret two approved local evidence sources about variation and natural selection. For each, record the variables, a precise observed pattern and a separate explanation. Use counts, proportions or percentages only when supplied. Compare which source better supports one step in the natural-selection sequence and identify one uncertainty that requires another authorised source or check. Do not use live search or personal-trait examples. A table or graph can show variant counts or frequencies before and after a stated environmental pressure. A trend is described with variables and direction before a cause is proposed. Natural-selection explanation requires inherited variation, differential reproductive success and generations, not only a changing count. The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty. Use OBSERVED and EXPLAINED columns with sentence frames and identify the changing variant from a supplied graph. Describe each trend accurately, connect it to the selection sequence and state one evidence limit. Evaluate whether the sources support selection, alternative factors or both, and specify the additional evidence needed. Keep every graph axis, table heading and source locator visible. A frequency change is not automatically proof of a specific selection pressure. The core Foundation route expects accurate pattern description and a bounded process explanation, not advanced statistical testing. Record missing provenance or inheritance information as AWAITING AUTHORISED CHECK.
Variation and natural-selection evidence · second connection: A table or graph can show variant counts or frequencies before and after a stated environmental pressure. Link that anchor only when this second detail is relevant: A trend is described with variables and direction before a cause is proposed. For this variation and natural-selection evidence decision, use pointing, selecting, signing, speaking, typing or exact-word scribing; the learner still chooses the evidence, order, comparison or action. Staff supporting variation and natural-selection evidence may steady the named materials and read the displayed source exactly. They do not upgrade the variation and natural-selection evidence response, fill its missing result or convert its plan into completion. If access to variation and natural-selection evidence 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 · labVariation and natural-selection evidence decision lab
◆ Supported
Use OBSERVED and EXPLAINED columns with sentence frames and identify the changing variant from a supplied graph.
▲ Standard
Describe each trend accurately, connect it to the selection sequence and state one evidence limit.
★ Stretch
Evaluate whether the sources support selection, alternative factors or both, and specify the additional evidence needed.
Interpret two approved local evidence sources about variation and natural selection. For each, record the variables, a precise observed pattern and a separate explanation. Use counts, proportions or percentages only when supplied. Compare which source better supports one step in the natural-selection sequence and identify one uncertainty that requires another authorised source or check. Do not use live search or personal-trait examples.
Variation and natural-selection evidence · guided audit: A trend is described with variables and direction before a cause is proposed. Link that anchor only when this second detail is relevant: Natural-selection explanation requires inherited variation, differential reproductive success and generations, not only a changing count. For this variation and natural-selection evidence 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 variation and natural-selection evidence may steady the named materials and read the displayed source exactly. They do not upgrade the variation and natural-selection evidence response, fill its missing result or convert its plan into completion. If access to variation and natural-selection evidence 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 · Variation and natural-selection evidence
Interpret two approved local evidence sources about variation and natural selection. For each, record the variables, a precise observed pattern and a separate explanation. Use counts, proportions or percentages only when supplied. Compare which source better supports one step in the natural-selection sequence and identify one uncertainty that requires another authorised source or check. Do not use live search or personal-trait examples.
◆ Supported
Use OBSERVED and EXPLAINED columns with sentence frames and identify the changing variant from a supplied graph.
▲ Standard
Describe each trend accurately, connect it to the selection sequence and state one evidence limit.
★ Stretch
Evaluate whether the sources support selection, alternative factors or both, and specify the additional evidence needed.
Trace
A table or graph can show variant counts or frequencies before and after a stated environmental pressure.
Demand
Natural-selection explanation requires inherited variation, differential reproductive success and generations, not only a changing count.
Truth
The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty.
Exit route remains available: pause, use the print pack, reduce visual density or direct an adult. The named learning demand remains available.
Variation and natural-selection evidence · independent record: Natural-selection explanation requires inherited variation, differential reproductive success and generations, not only a changing count. Link that anchor only when this second detail is relevant: The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty. For this variation and natural-selection evidence 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 variation and natural-selection evidence may steady the named materials and read the displayed source exactly. They do not upgrade the variation and natural-selection evidence response, fill its missing result or convert its plan into completion. If access to variation and natural-selection evidence 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
Read one observation and the separate natural-selection explanation. The adult labels each OBSERVED or INFERRED. Confirm the classification or revise the sentence.
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.
Variation and natural-selection evidence · receiving point: The supplied data may support the explanation while still leaving sampling, inheritance or alternative-factor uncertainty. Link that anchor only when this second detail is relevant: A table or graph can show variant counts or frequencies before and after a stated environmental pressure. For this variation and natural-selection evidence decision, use pointing, selecting, signing, speaking, typing or exact-word scribing; the learner still chooses the evidence, order, comparison or action. Staff supporting variation and natural-selection evidence may steady the named materials and read the displayed source exactly. They do not upgrade the variation and natural-selection evidence response, fill its missing result or convert its plan into completion. If access to variation and natural-selection evidence 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.