Course 248 · Life course 70

Sort Waste and Plan Reuse Responsibly

A fictional household waste audit separating prevention, reuse, local recycling acceptance and special-disposal questions with checked quantities. Six introductory lessons use supplied practice cases.

Before you start

Use paper or a free text document; every core input is supplied in the lessons.

Learn Basic Home Maintenance & DIY See everything you’ll need

Free download · Original practice data · No external account required. Download the starter pack

What you’ll leave with

A fictional household waste audit separating prevention, reuse, local recycling acceptance and special-disposal questions with checked quantities.

Start course Start without an account. Sign in to save lesson progress across devices.

Your project

Start with the practice files. Build your project one lesson at a time.

Practice files are free without an account. Sign in to save your project record in My Proof: a description, checklist, and optional work link. Keep the original files in your own app or notebook; saving a project record does not upload them.

  1. Get your materialsDownload practice filesSupplied practice cases, a blank working record, complete lesson instructions, and annotated worked examples.
  2. Make your projectView the project checklist Work in your own notebook, document, or software. Use the supplied practice examples when you prefer.
  3. Keep a private recordSave a project record Sign in to save a description and checklist, then return to update them.
Course handbook

Know the route before you begin.

Here’s what you’ll need and what you’ll make. You can return to this guide during any lesson.

Who this is for

Learners aged 14+ building subject foundations and practical independence. Adults can use the same supplied cases.

Prepare before lesson one
  • Use paper or a free text document; every core input is supplied in the lessons.
  • A basic calculator is optional; show the method, units and checks.
  • Suggested earlier course: Learn Basic Home Maintenance & DIY
Your final project

Finish with proof you can use.

A fictional household waste audit separating prevention, reuse, local recycling acceptance and special-disposal questions with checked quantities.

Save a project record in My Proof
See project checklist and review criteria

Keep your working files in your own notebook or software. Save a private description, checklist, and work link in My Proof.

What to include

  • Record a seven-category stream with unit and period.
  • Calculate prevention and remaining material without duplicate counts.
  • Split suitable cardboard reuse from remaining cardboard.
  • Apply the supplied local guide and balance every route.
  • Write special-provider questions without handling items.
  • Compare and revise the complete plan with honest status labels.

Review and revise

Use these criteria to check your work and choose what to improve.

  • Method: applies the course-specific rules to the supplied cases with visible intermediate work.
  • Accuracy: results agree with the stated facts, units, boundaries and independent checks.
  • Reasoning: explains why the result follows and identifies a limitation or unresolved question.
  • Transfer: completes changed cases and revises the final project when a relevant assumption changes.
Three ideas to help you along the way
Three useful ideas

The rules behind the steps.

01

Check the specific conditions

A waste audit begins with a bounded period, mutually exclusive categories and a consistent unit. Record what exists before recommending routes. Classifying a material does not prove it is accepted locally, safe to handle or recyclable in a particular program. Unknown or hazardous items need responsible guidance rather than learner inspection.

02

Follow the supplied evidence

Prevention avoids a material entering the waste stream; reuse keeps an existing usable item serving a purpose; recycling processes accepted materials. These are different actions and quantities. A prevention estimate must identify the original row it reduces and cannot subtract the same mass again as recycling.

03

Keep the limits visible

Some household materials require special instructions because of toxicity, reactivity, fire risk or other hazards. Do not mix unknown products, pour them into drains or assume ordinary trash/curbside recycling is appropriate. EPA advises keeping lithium-ion batteries and devices containing them out of household garbage and recycling bins. Ask the relevant local hazardous-waste or electronics provider about accepted items and arrangements; do not disassemble devices here.

What do these words mean?
Key words

Key terms worth knowing.

Prevention
Avoiding material before it enters the future waste stream.
Reuse
Keeping a suitable existing item in use for a defined purpose.
Recycling acceptance
A collection program’s stated eligible materials and conditions.
Residual
Material assigned no reuse or accepted collection route under the supplied guide.
Special-route question
An item requiring appropriate provider instructions rather than an assumed household bin.
Mass balance
A check that nonoverlapping allocations add to the bounded total.
Your route

6 lessons.
One useful project.

Work in order the first time. Each lesson makes something the next lesson can use.

  1. 1
    Up next

    Classify a recorded waste stream

    Build a bounded mass inventory without confusing material categories with acceptance.

  2. 2
    8 min

    Prevent waste before choosing a bin

    Calculate a proposed prevention adjustment and maintain a nonduplicated remaining stream.

  3. 3
    8 min

    Choose reuse only when a usable purpose fits

    Allocate suitable existing material to a defined reuse purpose and preserve mass and status.

  4. 4
    10 min

    Apply a local acceptance guide

    Allocate a revised stream using a supplied program guide and check all destinations.

  5. 5
    8 min

    Flag hazardous and electronic disposal questions

    Identify special disposal questions and route them without unsafe handling or invented acceptance.

  6. 6
    13 min

    Compare and revise the complete waste plan

    Compare prevention and destination changes while retaining mass, period and evidence limits.

Use the tools

Tools to help you practice.

See all tools
Source transparency

Sources and further study.

Explore the references behind the lessons and take your learning further. Source notes explain access and reuse.

EPA: program-specific recycling questions
Source & access notes · checked 2026-10-01

Web open/search showed the official page, its topic heading and relevant concept description. This is a content/source check, not a provider endorsement.

Access: Official page retrieved with the web reader on 2026-10-01; interactive tools and videos were not certified by retrieval.

Reuse: Original fictional teaching cases, calculations, questions and examples; link and short factual paraphrase only. No copied source exercises or illustrations.

EPA: reduction and reuse actions
Source & access notes · checked 2026-10-01

Web open/search showed the official page, its topic heading and relevant concept description. This is a content/source check, not a provider endorsement.

Access: Official page retrieved with the web reader on 2026-10-01; interactive tools and videos were not certified by retrieval.

Reuse: Original fictional teaching cases, calculations, questions and examples; link and short factual paraphrase only. No copied source exercises or illustrations.

EPA: household hazardous-waste precautions
Source & access notes · checked 2026-10-01

Web open/search showed the official page, its topic heading and relevant concept description. This is a content/source check, not a provider endorsement.

Access: Official page retrieved with the web reader on 2026-10-01; interactive tools and videos were not certified by retrieval.

Reuse: Original fictional teaching cases, calculations, questions and examples; link and short factual paraphrase only. No copied source exercises or illustrations.

EPA: electronics and lithium-ion recycling boundaries
Source & access notes · checked 2026-10-01

Web open/search showed the official page, its topic heading and relevant concept description. This is a content/source check, not a provider endorsement.

Access: Official page retrieved with the web reader on 2026-10-01; interactive tools and videos were not certified by retrieval.

Reuse: Original fictional teaching cases, calculations, questions and examples; link and short factual paraphrase only. No copied source exercises or illustrations.

Ready when you are

Start with the first useful move.

You’ll always know what to do, what to make, and where to go next.

Start lesson one