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2026–27 · Main lesson · Spring 2027

22

Audit a Compost System and Improve Material Sorting

Adult extension of: Compost – Nature Recycles

April 12–16, 2027 · planned

Use the actual system’s accepted-material rules to examine inputs, decomposition evidence, and a practical maintenance decision.

Curriculum skill focus: Sorting, decomposition, observation, care routines

01 · Learning

Objectives

  • Identify the compost system and read its accepted and excluded material list.
  • Compare photographs or contained samples from different stages without assuming a precise age from appearance.
  • Create a clear input sign and assign the next observation or maintenance check.

02 · Preparation

Materials

Managed compost samples in closed containers or photographs; Approved material picture cards; Simple compost-system guide and care chart

03 · Practice

Adult project

  1. 1

    Identify the compost system and read its accepted and excluded material list.

  2. 2

    Sort sample cards into accepted, excluded, and verify-first categories.

  3. 3

    Compare photographs or contained samples from different stages without assuming a precise age from appearance.

  4. 4

    Review the system’s moisture, airflow, and maintenance instructions before choosing a care action.

  5. 5

    Create a clear input sign and assign the next observation or maintenance check.

Evidence & interpretation

What the investigation shows

Microorganisms and other decomposers break down organic material. Composting takes time and suitable conditions; not every material belongs in every compost system.

Practical connection

Why this work matters

Practice observation, decision-making, shared responsibilities, and communication through a concrete plant or materials task. Participants choose hands-on, planning, or recording roles.

Participation by choice

Individual access options

  • Offer speech, pointing, gaze, AAC, partner-assisted scanning, or a recorded choice. Follow individual vision and mobility plans. Present one or two items at a time; watching, declining, and taking a break are valid participation.
  • Use a seated-height tray, stabilized tools, large-print or picture instructions, and partner assistance chosen by the participant.
  • Reduce the number of comparisons or complete the planning and observation portions without handling materials.

Review & transfer

Reflect on the work

  • Which item requires checking your system’s rules?
  • What evidence of change can you record without opening the sample?

Topic references

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