Parent plan · Week 34 · Conservation, Systems & Environmental Design — connect, calculate and revise — Physics & Environmental Science

Parent teaching plan · 36 weeks

Units to teach or revisit

Chapter 11 · Conservation, Systems & Environmental Design

Assigned readings

Develop this chapter question: Which feasible action best serves stated ecological and human goals?

This week’s goals

Read A defensible solution leaves a trail another family can check at chapter launch and revisit it alongside this week’s linked units, figures and investigation.

Five flexible sessions, normally 50–60 minutes. Two core unit sessions are scheduled, with a third for selected demanding topics. Sample week uses a complete 90-minute paper plus about 30 minutes of corrections within two ordinary-hour equivalents.

Session 1 · Home Energy and Habitat Capstone — calculate, explain and revise

Use the linked chapter reading, unit explanations, figures and notebook.

Your task

Calculate/graph the records with correct labels. Answer the analysis questions, compare an alternative account, revise the model and submit a report with evidence, uncertainty and next test.

  1. Prepare the assigned explanation and identify the question.
  2. Trace a model or graph, labeling its quantities and units.
  3. Attempt the assigned reasoning and calculation before opening guidance.
  4. Compare with criteria and retain an explained correction.
Hint and response guidance

Name the objects, quantities, boundary and assumptions before choosing a relationship. Use the matching figure to check each step.

Baseline is 60 kWh/year; A uses 10 and B uses 8. Savings are 50 and 52 kWh, or 10 and 10.4 currency units annually. Simple paybacks are 2 and about 2.88 years. Lifetime, maintenance, equal useful service, and changed use hours must be considered. Preserve the original observations, intermediate working and a labeled mechanism. Report the relevant boundary and model assumptions, discuss an alternative explanation, and identify the next useful measurement; do not replace unexpected data with the illustrative record.

  • Use the supplied evidence and correct quantity/units.
  • Explain the relevant mechanism or relationship.
  • Show intermediate working or a labeled model.
  • State an assumption, limitation or useful next test.

Session 2 · Consolidation — Biodiversity Loss

Use the linked chapter reading, unit explanations, figures and notebook.

Your task

Use marked evidence to choose a real gap: redraw and explain a figure, complete a new calculation or compare an alternative mechanism. If secure, design a further test and identify its controls. A population estimate falls from 500 to 350 under comparable methods. Find percent decline. Explain why this does not prove global extinction or identify a unique cause.

  1. Prepare the assigned explanation and identify the question.
  2. Trace a model or graph, labeling its quantities and units.
  3. Attempt the assigned reasoning and calculation before opening guidance.
  4. Compare with criteria and retain an explained correction.
Hint and response guidance

Name the objects, quantities, boundary and assumptions before choosing a relationship. Use the matching figure to check each step.

Decline=(500−350)/500=30%. Living individuals remain in the defined population, and the record alone cannot distinguish survival, reproduction, movement or the pressures affecting them.

  • Use the supplied evidence and correct quantity/units.
  • Explain the relevant mechanism or relationship.
  • Show intermediate working or a labeled model.
  • State an assumption, limitation or useful next test.

Session 3 · Consolidation — Sustainability & Solutions

Use the linked chapter reading, unit explanations, figures and notebook.

Your task

Use marked evidence to choose a real gap: redraw and explain a figure, complete a new calculation or compare an alternative mechanism. If secure, design a further test and identify its controls. Energy per use falls from 10 to 6 units while annual uses rise from 100 to 140. Find old/new total and percent saving; state a separate service criterion.

  1. Prepare the assigned explanation and identify the question.
  2. Trace a model or graph, labeling its quantities and units.
  3. Attempt the assigned reasoning and calculation before opening guidance.
  4. Compare with criteria and retain an explained correction.
Hint and response guidance

Name the objects, quantities, boundary and assumptions before choosing a relationship. Use the matching figure to check each step.

Old=1000 units; new=840; saving=160 units=16%, smaller than the 40% per-use reduction. Adequate service quality, access or reliability needs a separate measure.

  • Use the supplied evidence and correct quantity/units.
  • Explain the relevant mechanism or relationship.
  • Show intermediate working or a labeled model.
  • State an assumption, limitation or useful next test.

Session 4 · Consolidation — Environmental Systems, Feedback & Risk

Use the linked chapter reading, unit explanations, figures and notebook.

Your task

Use marked evidence to choose a real gap: redraw and explain a figure, complete a new calculation or compare an alternative mechanism. If secure, design a further test and identify its controls. Event A has probability 0.05 and consequence 200 units; B has probability 0.20 and consequence 40. Find expected losses and explain why the smaller expected value need not settle the choice.

  1. Prepare the assigned explanation and identify the question.
  2. Trace a model or graph, labeling its quantities and units.
  3. Attempt the assigned reasoning and calculation before opening guidance.
  4. Compare with criteria and retain an explained correction.
Hint and response guidance

Name the objects, quantities, boundary and assumptions before choosing a relationship. Use the matching figure to check each step.

A=10 units; B=8 units. B has lower expected loss, but worst-case severity, uncertainty, distribution, constraints and priorities still need transparent consideration.

  • Use the supplied evidence and correct quantity/units.
  • Explain the relevant mechanism or relationship.
  • Show intermediate working or a labeled model.
  • State an assumption, limitation or useful next test.

Session 5 · Consolidation — Environmental Design & Evidence-Based Capstone

Use the linked chapter reading, unit explanations, figures and notebook.

Your task

Use marked evidence to choose a real gap: redraw and explain a figure, complete a new calculation or compare an alternative mechanism. If secure, design a further test and identify its controls. A proposed change saves 12 W for 1500 h/year while providing the same service. Its extra production energy is 24 kWh. Find annual saving and energy break-even; name one pilot measure beyond energy.

  1. Prepare the assigned explanation and identify the question.
  2. Trace a model or graph, labeling its quantities and units.
  3. Attempt the assigned reasoning and calculation before opening guidance.
  4. Compare with criteria and retain an explained correction.
Hint and response guidance

Name the objects, quantities, boundary and assumptions before choosing a relationship. Use the matching figure to check each step.

Annual saving=0.012×1500=18 kWh. Energy break-even=24/18≈1.33 years under fixed use/lifespan assumptions. Measure service adequacy, reliability, actual hours, access or maintenance as a separate pilot outcome.

  • Use the supplied evidence and correct quantity/units.
  • Explain the relevant mechanism or relationship.
  • Show intermediate working or a labeled model.
  • State an assumption, limitation or useful next test.

Submit this week

Parent / teacher weekly conference

Use actual written work to adjust support. Do not count a copied solution as independent mastery. Extend or redistribute time where needed; home-study records do not certify supervised or mandated laboratory requirements.

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