Opening

LAUNCH · SCIENCE · Lesson 10 of 10

A checkpoint with a useful next step

Learning intention

Apply taught disease, immunity and plant concepts in an original diagnostic checkpoint.

Use what you have learned, then improve one answer.

This is an original 16-mark classroom task.

Success looks like

Use causes and mechanisms rather than symptoms alone.
Explain a biological process with correct substances and structures.
Calculate a rate, identify a limitation and improve one answer.

Retrieval

LAUNCH · SCIENCE · Lesson 10 of 10

Bring the core distinctions back

R1. Does a shared symptom prove a shared cause?

R2. Is a protein a cell?

R3. What must a rate include?

I do

LAUNCH · SCIENCE · Lesson 10 of 10

Read causal evidence

I identify the cause before classifying.

A symptom alone is not enough.

A cause test beats a symptom guess

Diagram description

Recap comparison: two fictional conditions share a rash symptom. One is caused by a transmissible virus; the other is a non-infectious skin reaction. The cause and route determine the category, not rash alone.

I do

LAUNCH · SCIENCE · Lesson 10 of 10

Keep the mechanism clear

Antigens, antibodies and memory cells have different roles.

A later response is specific to recognised antigen features.

Keep cells and proteins distinct

Diagram description

Recap role model linking a recognised antigen to antibody response and retained memory lymphocytes. Memory supports a faster later response to the same antigen; it is not an antibody protein.

I do

LAUNCH · SCIENCE · Lesson 10 of 10

Calculate, then attach the unit

Find the mean count.

Divide by the duration of each count.

Worked method, different numbers

Diagram description

Analogous warm-up: three counts each lasting 2 minutes are 7, 8 and 9 bubbles; mean 8 per 2 minutes gives 4 bubbles/min. The checkpoint uses different data.

We do

LAUNCH · SCIENCE · Lesson 10 of 10

Repair a worked explanation

Go to interactive investigation

W1. “P and Q have a rash, so both must be infectious.”

Repair it with one causal clue.

A cause test beats a symptom guess

Diagram description

My response — say it, sketch on paper or type

Warm-up audit: cause, role, unit

Analogous practice before the independent checkpoint; assessment answers remain separate.

Decision 1 of 3

Does a shared rash prove both recap cases are infectious?

Choose, test, then explain together. Evidence diagrams appear only after your test. Diagram transitions explain the model; they do not represent real elapsed time. Use Pause model to stop transitions and model controls, or your device’s reduced-motion setting. The printed We do activity provides the paper route.

We do

LAUNCH · SCIENCE · Lesson 10 of 10

Check the role labels

W2. Which label belongs on a protein: antibody or memory lymphocyte?

Keep cells and proteins distinct

Diagram description

Recap role model linking a recognised antigen to antibody response and retained memory lymphocytes. Memory supports a faster later response to the same antigen; it is not an antibody protein.

My response — say it, sketch on paper or type

We do

LAUNCH · SCIENCE · Lesson 10 of 10

Audit a unit

W3. A pupil writes 8 bubbles/min for the warm-up.

Which part of the method did they miss?

Worked method, different numbers

Diagram description

Analogous warm-up: three counts each lasting 2 minutes are 7, 8 and 9 bubbles; mean 8 per 2 minutes gives 4 bubbles/min. The checkpoint uses different data.

My response — say it, sketch on paper or type

Hinge

LAUNCH · SCIENCE · Lesson 10 of 10

Ready to work independently?

Which statement is accurate?

You do

LAUNCH · SCIENCE · Lesson 10 of 10

Choose the agreed route

Shared evidence + one response page.

Four questions, 4 marks each: 16 in total.

Work independently for 17 minutes.

My response — say it, sketch on paper or type

You do

LAUNCH · SCIENCE · Lesson 10 of 10

Independent checkpoint

Use the supplied cases and constructed table.

Show calculations and use precise labels.

If stuck, leave a space and move on.

My response — say it, sketch on paper or type

Review

LAUNCH · SCIENCE · Lesson 10 of 10

Feedback after the checkpoint

Use the teacher’s item feedback.

Choose one error with the biggest scientific effect.

My response — say it, sketch on paper or type

Review

LAUNCH · SCIENCE · Lesson 10 of 10

Make the correction explain why

L1. Improve one answer using a because statement.

Audience asks: “What evidence or mechanism changed it?”

My response — say it, sketch on paper or type

Exit

LAUNCH · SCIENCE · Lesson 10 of 10

Plan the next five minutes of teaching

E1. Name one distinction you can now explain.

E2. Choose one next step: cause, memory, plant transport or rate.

My response — say it, sketch on paper or type

Exit

LAUNCH · SCIENCE · Lesson 10 of 10

Keep both versions

First attempt shows the starting point.

A reasoned correction shows the improvement.

My response — say it, sketch on paper or type

Continue within this stage’s shared time.

My science task sheets

Choose one route with your teacher. Shared evidence and the exit sheet appear in every route. Your work stays here while the page is open; save it before closing.

Shared evidence | Checkpoint cases and measurements

Use these original cases and constructed sample data. No personal health information is needed.

Warm-up only (W1–W3): P has a rash caused by a transmissible virus; Q has a rash from a non-infectious skin reaction. W1: does the same symptom establish the same cause? W2: an antibody is a protein; a memory lymphocyte is a cell. Explain the difference. W3: separate practice counts are 7, 8 and 9 bubbles, each over 2 minutes. Find the mean and then the rate per minute. Use the checkpoint cases below only for the independent task.

Case A

A fictional respiratory illness is caused by a virus that can pass between hosts. Coughing may occur.

Case B

An inherited airway condition is not caused by a transmissible infectious agent. Coughing may occur.

Light sensor (lux)	Three bubble counts	Minutes per count
200	12,15,18	3 each
800	30,33,36	3 each

Constructed pondweed investigation: same shoot, solution and temperature at both light levels. Each count lasts 3 minutes. Bubble volumes may differ and some oxygen dissolves.

Record the route used and any read-aloud, scribing or additional support.

Supported route | Four scientific checks

Original 16-mark checkpoint. Use the shared cases and constructed data. Each numbered question is worth 4 marks. Record the route/support; this is not an official exam paper. Access word bank: cause; feature; protein; cell; reactant; tissue; time; proxy.

S1. Classify cases A and B as communicable or non-communicable [2]. Give the causal reason for A [1]. Explain why coughing alone cannot decide [1].S2. Define antigen [1] and antibody [1]. Identify memory lymphocytes as cells [1] and explain their role in a later response to the same antigen [1].S3. Name both material reactants of photosynthesis [1] and its sugar product [1]. Name the tissue carrying water/mineral ions [1] and the tissue carrying sucrose [1].S4. For 800 lux, calculate the mean count [1] and bubbles per minute [1]. Name one control for comparing the two light levels [1] and one reason count is not exact oxygen volume [1].

Standard route | Explain and calculate

Original 16-mark checkpoint. Use the shared cases and constructed data. Each numbered question is worth 4 marks. Record the route/support; this is not an official exam paper.

M1. Classify cases A and B as communicable or non-communicable [2]. Give the causal reason for A [1]. Explain why coughing alone cannot decide [1].M2. Define antigen [1] and antibody [1]. Identify memory lymphocytes as cells [1] and explain their role in a later response to the same antigen [1].M3. Name both material reactants of photosynthesis [1] and its sugar product [1]. Name the tissue carrying water/mineral ions [1] and the tissue carrying sucrose [1].M4. For 800 lux, calculate the mean count [1] and bubbles per minute [1]. Name one control for comparing the two light levels [1] and one reason count is not exact oxygen volume [1].

Challenge route | Precise explanations

Original 16-mark checkpoint. Use the shared cases and constructed data. Each numbered question is worth 4 marks. Record the route/support; this is not an official exam paper. Answer without the access word bank; justify each causal or measurement distinction.

T1. Classify cases A and B as communicable or non-communicable [2]. Give the causal reason for A [1]. Explain why coughing alone cannot decide [1].T2. Define antigen [1] and antibody [1]. Identify memory lymphocytes as cells [1] and explain their role in a later response to the same antigen [1].T3. Name both material reactants of photosynthesis [1] and its sugar product [1]. Name the tissue carrying water/mineral ions [1] and the tissue carrying sucrose [1].T4. For 800 lux, calculate the mean count [1] and bubbles per minute [1]. Name one control for comparing the two light levels [1] and one reason count is not exact oxygen volume [1].

Feedback and next step | Keep first and revised answers

Complete this after the independent checkpoint. Corrections are not added to the first-attempt score.

L1. Copy one short part of your first answer. Improve it and explain why the change is scientifically stronger.E1. State one distinction you can now explain accurately.E2. Choose one specific next teaching target and say what would help.

My next useful focus Classify from cause and transmission. Separate antibody proteins and memory cells. Match plant materials with tissues. Calculate a rate and state its proxy limit.