Parent plan · Week 27 · Ecosystems, Habitats & Biomes · Food Chains, Food Webs & Energy Flow — Science 6: Matter, Energy & Earth Systems
Parent teaching plan · 36 weeksUnits to teach or revisit
Chapter 7 · Ecosystems, Watersheds & Conservation
Assigned readings
This is the parent timetable. Learners follow chapter and unit names. Each chapter uses four consecutive weeks; dedicated consolidation, project, sample, and exam weeks make the complete 36-week plan.
This week’s goals
- Complete the named teaching, practice, investigation, or assessment tasks.
- Preserve quantities, mechanisms, and a meaningful evidence limit.
- Save a revised explanation and identify any concept needing reteaching.
Read the linked chapter opening and the background/short teaching parts named in each session. All required case information and investigation records are supplied on the site; external references are optional extensions. On assessment days, use the paper’s provided scenarios and relationships.
Five suggested 35–45-minute sessions. Midterm response blocks total 90 minutes; final response blocks total 135. The sample uses 45 minutes. Actual optional drying/observation can span longer intervals; use the supplied records when necessary and extend teaching for comprehension.
Session 1 · Ecosystems, Habitats & Biomes · Read and distinguish
Biotic components are organisms and their relationships; abiotic components include physical and chemical conditions. A soil or pond sample can contain both. Some materials are formerly living, so state which category or process the question is using. A habitat concerns a particular organism’s usable setting. A biome groups broad ecological patterns; it is not a promise that every spot within it has identical conditions. Local shade, water, elevation, and human changes create variation.
Your task
For Ecosystems, Habitats & Biomes, read the background and chapter opening, study Parts 1–2, and write two observation/idea notes with the checkpoint responses. Keep calculations and units when applicable.
- Prepare (5 minutes): retrieve the relevant idea and state today’s question.
- Read/examine (10 minutes): use the linked unit, diagram, or supplied record; note units and conditions.
- Apply (15–25 minutes): complete the task, showing evidence and reasoning before opening guidance.
- Reflect (5 minutes): revise one choice, explain the correction, and save the work.
Hint and response guidance
Begin with the actual observation, quantity, or diagram relationship. Explain how it bears on the question before making a broad claim.
They influence resources and processes, so the organism list alone cannot explain the ecosystem’s relationships. No. It supplies broad context, while local conditions need their own evidence.
- An accurate scientific claim answering the actual question.
- Relevant evidence or a labeled model with quantities and units when applicable.
- Reasoning that connects evidence with the mechanism rather than only repeats it.
- A specific method, boundary, scale, or alternative-explanation limit.
Session 2 · Ecosystems, Habitats & Biomes · Model and explain
Connect a relevant need with a measured condition, and consider alternatives. An organism being absent can reflect season, access, sampling, or detection as well as unsuitable conditions. Avoid declaring a single cause from one visit. A sampled square, whole pond, and watershed describe different systems. Organisms and materials can cross those boundaries. A short survey may miss seasonal changes. A model should state the scale on which its claim applies.
Your task
For Ecosystems, Habitats & Biomes, study Parts 3–4 and attempt the worked case: Compare richness and abundance, then explain one limit to a habitat-quality judgment. Explain the steps before opening the model.
- Prepare (5 minutes): retrieve the relevant idea and state today’s question.
- Read/examine (10 minutes): use the linked unit, diagram, or supplied record; note units and conditions.
- Apply (15–25 minutes): complete the task, showing evidence and reasoning before opening guidance.
- Reflect (5 minutes): revise one choice, explain the correction, and save the work.
Hint and response guidance
Begin with the actual observation, quantity, or diagram relationship. Explain how it bears on the question before making a broad claim.
The shaded patch has greater recorded species richness, while the sunny patch has more recorded individuals. Neither measure alone proves a universally better habitat. Species identity, seasonal changes, detection, and the needs of a particular organism matter. These are illustrative patch records, not a survey of every forest.
- An accurate scientific claim answering the actual question.
- Relevant evidence or a labeled model with quantities and units when applicable.
- Reasoning that connects evidence with the mechanism rather than only repeats it.
- A specific method, boundary, scale, or alternative-explanation limit.
Session 3 · Ecosystems, Habitats & Biomes · Practice, revise and exit
Use practice as evidence of understanding. A selected definition can be checked automatically, while a written explanation needs human comparison with its mechanism and limits.
Your task
For Ecosystems, Habitats & Biomes, complete practice questions 1–6 and both choice checks, then answer independently: A bird uses nesting cover in one patch and feeds in another. Must its habitat be one small fixed box? Save a correction explaining one changed claim or method.
- Prepare (5 minutes): retrieve the relevant idea and state today’s question.
- Read/examine (10 minutes): use the linked unit, diagram, or supplied record; note units and conditions.
- Apply (15–25 minutes): complete the task, showing evidence and reasoning before opening guidance.
- Reflect (5 minutes): revise one choice, explain the correction, and save the work.
Hint and response guidance
Begin with the actual observation, quantity, or diagram relationship. Explain how it bears on the question before making a broad claim.
No. Habitat use can span several features and locations. The study boundary should match the question rather than assume the organism never moves.
- An accurate scientific claim answering the actual question.
- Relevant evidence or a labeled model with quantities and units when applicable.
- Reasoning that connects evidence with the mechanism rather than only repeats it.
- A specific method, boundary, scale, or alternative-explanation limit.
Session 4 · Food Chains, Food Webs & Energy Flow · Read and distinguish
A green plant uses light energy and materials such as carbon dioxide and water to build organic matter. Its roots supply water and mineral nutrients, not the entire food material. Producers also use energy for their own processes. One organism can eat several resources and be eaten by several others. A web can reveal alternative pathways a chain omits. Labels should specify the feeding evidence rather than assume every animal in the same place eats every other one.
Your task
For Food Chains, Food Webs & Energy Flow, read the background and chapter opening, study Parts 1–2, and write two observation/idea notes with the checkpoint responses. Keep calculations and units when applicable.
- Prepare (5 minutes): retrieve the relevant idea and state today’s question.
- Read/examine (10 minutes): use the linked unit, diagram, or supplied record; note units and conditions.
- Apply (15–25 minutes): complete the task, showing evidence and reasoning before opening guidance.
- Reflect (5 minutes): revise one choice, explain the correction, and save the work.
Hint and response guidance
Begin with the actual observation, quantity, or diagram relationship. Explain how it bears on the question before making a broad claim.
The rabbit receives matter and chemical energy by eating the grass under the stated convention. It adds an alternative resource pathway, so removing one prey does not automatically describe all food available to the fox.
- An accurate scientific claim answering the actual question.
- Relevant evidence or a labeled model with quantities and units when applicable.
- Reasoning that connects evidence with the mechanism rather than only repeats it.
- A specific method, boundary, scale, or alternative-explanation limit.
Session 5 · Food Chains, Food Webs & Energy Flow · Model and explain
Not all energy in a resource becomes new consumer biomass. Some remains uneaten, enters waste, or supports processes that transfer energy to surroundings. A fixed transfer percentage is a classroom simplification rather than a universal law. A food-web change can affect connected populations, but competing resources, movement, disease, and timing also matter. Explain a plausible pathway and a needed measurement. A diagram alone cannot give an exact numerical population forecast.
Your task
For Food Chains, Food Webs & Energy Flow, study Parts 3–4 and attempt the worked case: Explain arrow direction, calculate the stated fraction, and identify a limit on population prediction. Explain the steps before opening the model.
- Prepare (5 minutes): retrieve the relevant idea and state today’s question.
- Read/examine (10 minutes): use the linked unit, diagram, or supplied record; note units and conditions.
- Apply (15–25 minutes): complete the task, showing evidence and reasoning before opening guidance.
- Reflect (5 minutes): revise one choice, explain the correction, and save the work.
Hint and response guidance
Begin with the actual observation, quantity, or diagram relationship. Explain how it bears on the question before making a broad claim.
The arrows show receiving organisms obtaining matter and energy from resources. 80 ÷ 800 = 10% in the stated biomass-transfer model, not a universal percentage. The second fish provides another feeding route, and the web lacks population sizes and rates; it cannot specify an exact future bird count.
- An accurate scientific claim answering the actual question.
- Relevant evidence or a labeled model with quantities and units when applicable.
- Reasoning that connects evidence with the mechanism rather than only repeats it.
- A specific method, boundary, scale, or alternative-explanation limit.
Submit this week
- For Food Chains, Food Webs & Energy Flow, study Parts 3–4 and attempt the worked case: Explain arrow direction, calculate the stated fraction, and identify a limit on population prediction. Explain the steps before opening the model.
Parent / teacher weekly conference
Read aloud in short sections if needed and ask the learner to explain an observation before its cause. Compare written reasoning with the criteria and actual records, accepting supported alternatives. Keep learner answers and marks separately backed up. No personal disclosure, public posting, or product purchase is required.
- Can the learner state what was observed and what is inferred?
- Are units, time, scale, and boundary appropriate?
- Does the mechanism explain the evidence rather than merely label it?
- What specific distinction needs another example before proceeding?