2026–27 · Backup lesson · Fall 2026
Engineer and Test a Tabletop Lean-To
Adult extension of: Build a Lean-To Natural Shelter
Date not yet confirmed · previously listed for November 9
Construct a small shelter model with a defined support, sloped roof, and covering. Compare one design change at a time and use the results to explain limits before considering any real outdoor application.
Curriculum skill focus: Choice-making, spatial awareness, construction, comparing tests
01 · Learning
Objectives
- Identify the support and load path in a simple shelter model.
- Compare stability and coverage under a controlled test.
- Use a recorded failure point to revise a design.
02 · Preparation
Materials
Pre-cut blunt dowels or safe fallen sticks; tray; stable support blocks; soft cord or clips; paper or safe leaf covering; small marker block to represent protected space; ruler; optional gentle hand fan and water mist; towels.
03 · Practice
Adult project
- 1
Set a tabletop-only challenge: cover the marker block and remain standing during a gentle repeatable test. Decide who will design, place parts, secure joints, test, and record.
- 2
Draw or arrange a plan showing where the roof will rest. Inspect materials for sharp points and choose a stable base before adding roof pieces.
- 3
Build a supported sloping roof and add a lightweight covering. Measure the protected footprint and notice gaps without climbing on or entering the structure.
- 4
Apply the same short fan exposure or small mist to the model in its tray. Keep water away from any electrical fan. Record movement, collapse, leaks, or unchanged areas.
- 5
Select one weak point and change one feature, such as support spacing or overlap. Repeat the same test and compare the before-and-after result.
- 6
Label the model with the improvement and the limits of the test. Disassemble responsibly, store materials, and discuss why real shelter decisions require trained guidance and site assessment.
Evidence & interpretation
What the investigation shows
Supports transfer loads to the base, and roof slope and overlap influence water shedding. A small model cannot establish the strength, weather resistance, or safety of a human-size shelter.
Practical connection
Why this work matters
Model building practices planning, teamwork, spatial judgment, sequencing, and evidence-based revision without putting a person inside an unverified structure.
Participation by choice
Individual access options
- Use a pre-started frame, large clips, a non-slip tray, and seated-height access.
- Choose a dry test or photographs of test results instead of mist or fan exposure.
- Participants may direct a partner, arrange a plan, read the criteria, or record results without building by hand.
Review & transfer
Reflect on the work
- Which change improved the model, and what evidence supports that conclusion?
- Which real-world hazards did this small test leave out?