06.09B Engineering design challenge, Part III

Module 06 — Heat and Particles · quiz worth 40 pts

The big idea Part III turns earlier problem research into a defensible comparison of two solutions, using criteria, constraints, evidence, tradeoffs, and a clear priority.

One problem, two solutions

Part III is a comparison. Hold the problem still while you compare two ways to address it.

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Before you start Open your completed Part I and Part II files, teacher feedback, and source notes. Part III continues that work; it does not begin with a new problem.

Bring forward the same problem

Open the work from Parts I and II before drafting. Part III should use the same larger problem and the same chosen subproblem unless the course directions or teacher feedback require a change. Copy the exact subproblem statement into working notes so each solution is evaluated against the same need.

Define the decision

Restate the subproblem

Make it narrow enough that a proposed solution can address it.

List criteria

State what a successful solution should accomplish.

List constraints

Record real limits from earlier work, such as available resources, safety, time, scale, or required performance, only when they belong to this project.

Choose evidence

Decide what research or data can show how each solution performs.

Develop two solutions

Solution one

Describe how it works, what it needs, and how it helps the selected subproblem.

Solution two

Give it the same level of explanation and research so the comparison is fair.

Evidence

Attach a source-supported reason to each claimed benefit or limitation.

Connection

Explain how improving the subproblem could help the larger problem from Part I.

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Compare and prioritize

Use the same criteria

Compare both solutions on the same decision factors.

Name tradeoffs

A stronger choice can still have a cost, risk, or limitation.

Rank the solutions

State which solution should receive priority and identify the criterion that drives that decision.

Defend the priority

Use evidence and project constraints, not preference alone.

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Worked comparison structure

A structure for your own project

  • Need. one defined subproblem\text{one defined subproblem}
  • Choices. solution A and solution B\text{solution A and solution B}

How should the recommendation paragraph be organized?

  1. Name the prioritized solution and the deciding criterion.
  2. Compare both solutions using one piece of relevant evidence.
  3. Acknowledge one real tradeoff or constraint.
  4. Connect the recommended solution back to the larger problem.

The paragraph makes a traceable claim: priority → criterion → evidence → tradeoff → larger-problem connection.

Research and citation check

The assignment calls for a final MLA citation page with at least three sources. Each source on that page should support something used in the project, and each borrowed fact, quotation, image, or distinctive idea should be credited in the format required by the course. Keep the citation page with the final Part III submission.

Part III submission checklist

  1. The same larger problem and subproblem from Parts I and II are clear.
  2. Two distinct solutions are explained with comparable detail.
  3. Each solution is connected to the subproblem and larger problem.
  4. The comparison uses named criteria and real constraints.
  5. The priority choice includes evidence and at least one tradeoff.
  6. All required Part III prompts are answered.
  7. The final MLA citation page contains at least three used sources.
  8. The submitted file is complete, readable, and opens correctly.

Engineering-response traps

Two labels are not two developed solutions

Explain mechanism, requirements, benefits, and limitations for each.

Preference is not prioritization

A priority needs a criterion, evidence, and a tradeoff.

Do not change the target halfway through

Both solutions must address the same defined subproblem.

A works-cited page is not decoration

Use sources in the reasoning and cite borrowed material where it appears.

Part III readiness practice

Answer these as a submission audit, then fix any weak spot in the document.