Foundations of Matter and Chemical Change · 5th Year

Active learning ideas

Designing with Materials

Active learning works for this topic because students must physically test and compare materials to see how properties like hardness or conductivity affect performance. When students handle samples and build prototypes, abstract concepts become concrete, making it easier to transfer knowledge to real-world design problems.

• NCCA Curriculum Specifications
• NCCA: Primary - Design and Make - Designing and Making

• 25–50 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Stations Rotation
• 45 min · Small Groups

Stations Rotation: Property Testing Labs

Prepare stations for tensile strength (weights on strings), thermal insulation (ice in containers), water resistance (submerged samples), and conductivity (circuit tests with metals). Groups test five materials each, record quantitative data like time to melt or max load, then vote on best uses. Debrief with class chart.

What material is best for this job and why?

Facilitation Tip

During the Property Testing Labs, set timers for each station and circulate with a clipboard to ask probing questions about why students think specific materials performed as they did.

What to look for

Provide students with a scenario, e.g., 'Design a simple tool to scoop sand on a beach.' Ask them to list three material properties relevant to this task and identify one material that possesses these properties, explaining why.

• Remember
• Understand
• Apply
• Analyze
• Self-Management
• Relationship Skills

Activity 02

• 50 min · Small Groups

Design Challenge: Recycled Bridge Build

Provide recycled plastics, cardboard, foil. Teams design bridges to span 30cm and hold 1kg. Brainstorm properties needed, build prototypes, test loads progressively. Iterate once based on failure points and peer feedback.

How can we make our design strong and useful?

Facilitation Tip

For the Recycled Bridge Build, provide a limited supply of recycled materials to encourage creativity and force students to evaluate properties carefully.

What to look for

Present two different materials (e.g., wood and plastic) and a design challenge (e.g., building a bird feeder). Ask students to discuss the pros and cons of each material for this specific purpose, considering both functionality and environmental impact.

Activity 03

• 35 min · Pairs

Pairs Prototype: Insulated Cooler

Pairs select from fabrics, foams, metals to insulate a small cooler for ice. Predict performance based on properties, build, test melt rates over 20 minutes. Compare results in whole-class graph and discuss sustainability.

Can we use recycled materials in our design?

Facilitation Tip

In the Insulated Cooler Pairs Prototype, ask students to explain their insulation strategy before they start building to ensure they connect material choices to thermal properties.

What to look for

Students present their prototype designs for a chosen object. Peers use a checklist to evaluate: Did the designer clearly state the purpose? Are the material choices justified by specific properties? Are there suggestions for improving sustainability? Peers provide one constructive comment.

Activity 04

• 25 min · Whole Class

Whole Class: Material Match-Up Game

Display 10 objects with purposes. Students match to material samples by properties via think-pair-share. Vote on choices, test top matches live, adjust based on outcomes.

What material is best for this job and why?

Facilitation Tip

The Material Match-Up Game works best with mixed-ability pairs so students teach each other the reasoning behind their matches.

What to look for

Provide students with a scenario, e.g., 'Design a simple tool to scoop sand on a beach.' Ask them to list three material properties relevant to this task and identify one material that possesses these properties, explaining why.

A few notes on teaching this unit

Teachers should start with hands-on tests because students learn most when they manipulate materials and record observations themselves. Avoid long lectures on properties; instead, let students discover relationships through structured experiments. Research shows that combining material science with engineering challenges improves retention, so scaffold from simple tests to complex design tasks over time.

Successful learning looks like students justifying their material choices with evidence from tests and prototypes, not just repeating definitions. They should compare options critically, discuss trade-offs, and connect chemical properties to functional performance in their designs.

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Watch Out for These Misconceptions

• During the Property Testing Labs, watch for students assuming that heavier materials are always stronger.

  Have students perform tensile tests on lightweight foam versus heavier metal samples, recording data in a shared table. Ask them to compare results and discuss why bonding structures matter more than mass alone.

• During the Recycled Bridge Build, watch for students dismissing recycled materials as weaker without testing.

  Provide side-by-side samples of new and recycled plastics or metals. Ask students to build small sections of the bridge with each and compare their load-bearing capacity before deciding on final materials.

• During the Property Testing Labs, watch for students ignoring reactivity in material selection.

  Set up an exposure challenge station with vinegar to simulate acid rain. Have students test metal samples and observe corrosion, then discuss how reactivity affects the longevity of outdoor designs.

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Methods used in this brief

• Stations Rotation