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Engineering · 2nd Year

Active learning ideas

The Ethics of Product Lifecycles

This topic tackles the ethics of how products are made and how long they are meant to last. Students investigate 'planned obsolescence,' where products are designed to fail or become outdated, and contrast this with the 'Right to Repair' movement. This is a critical look at the social responsibility of the engineer in a consumer-driven world.

NCCA Curriculum SpecificationsNCCA JC Engineering LO 1.12NCCA JC Engineering LO 2.10
30–60 minPairs → Whole Class3 activities

Activity 01

Inquiry Circle60 min · Small Groups

Inquiry Circle: The Product Teardown

In small groups, students take apart a broken small appliance, like a toaster or a toy. They must identify if parts are glued, screwed, or clipped together and rate the 'repairability' of the item on a scale of 1 to 10.

What happens to products at the end of their life?
AnalyzeEvaluateCreateSelf-ManagementSelf-Awareness
Generate Complete Lesson

Activity 02

Mock Trial50 min · Whole Class

Mock Trial: The Case Against Planned Obsolescence

The class holds a trial for a fictional tech company accused of making their batteries impossible to replace. Students act as lawyers, engineers, and consumers to argue the ethics of the design and propose a 'fair' engineering solution.

Is planned obsolescence ethical?
AnalyzeEvaluateCreateDecision-MakingSocial Awareness
Generate Complete Lesson

Activity 03

Think-Pair-Share30 min · Pairs

Think-Pair-Share: Design for Disassembly

Students look at a common object and brainstorm three ways to change the design so it can be easily taken apart for recycling. They share their ideas with a partner and sketch a 'circular' version of the product.

How can engineers promote a circular economy?
UnderstandApplyAnalyzeSelf-AwarenessRelationship Skills
Generate Complete Lesson

A few notes on teaching this unit


Watch Out for These Misconceptions

  • Products fail just because they are 'cheap.'

    Sometimes failure is a deliberate design choice to encourage new sales. Comparing the internal components of an old 'built to last' tool with a modern equivalent helps students see the difference between cost-cutting and intentional obsolescence.

  • Recycling is the best way to handle old products.

    Repair and reuse are actually much better for the environment than recycling. Hands-on repair tasks show students that keeping a product in use longer is the most effective way to reduce its overall environmental footprint.


Methods used in this brief