Foundations of Matter and Chemical Change · 5th Year

Active learning ideas

Properties of Solids

Active learning works well for properties of solids because students must physically interact with materials to grasp abstract concepts like hardness and malleability. Handling real objects builds tactile memory and connects abstract ideas to concrete experiences, which research shows strengthens retention of physical science concepts.

• NCCA Curriculum Specifications
• NCCA: Primary - Materials - Properties and Characteristics

• 25–45 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Stations Rotation
• 45 min · Small Groups

Stations Rotation: Properties Testing Stations

Prepare four stations with solids: shape sorting (cubes vs irregular), hardness scale (scratch with nails), texture rubbings (crayon on paper), bend/break tests (rubber vs chalk). Small groups spend 8 minutes per station, recording data on charts before rotating and sharing findings.

What makes a solid a solid?

Facilitation Tip

During Station Rotation, label each station clearly and provide a simple data table for students to record observations systematically.

What to look for

Provide students with three unlabeled solid objects (e.g., a piece of chalk, a metal bolt, a rubber eraser). Ask them to write down two observable properties for each object and classify it as 'brittle' or 'malleable' based on their tests.

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

Activity 02

• 30 min · Pairs

Pairs Challenge: Predict and Test

Pairs receive five solids and predict properties on worksheets: will it bend, scratch easily, feel smooth? They test predictions safely, discuss matches or surprises, then classify solids by shared traits.

How can we describe different solids using our senses?

Facilitation Tip

For Predict and Test, encourage pairs to verbalize their predictions before testing to make their thinking visible.

What to look for

Hold up two different solid objects. Ask students to hold up fingers to indicate: 1 finger for 'very different properties', 2 fingers for 'somewhat similar properties', 3 fingers for 'very similar properties'. Then, ask one student to explain their choice for one pair.

Activity 03

• 40 min · Whole Class

Whole Class: Solid Gallery Walk

Students examine and label properties of displayed solids around the room. They walk, note observations on sticky notes, then regroup to sort notes into property categories on a class chart.

Can all solids be changed in the same way?

Facilitation Tip

During Solid Gallery Walk, place objects on tables with guiding questions to focus students' comparisons.

What to look for

Pose the question: 'Imagine you need to build a sturdy chair. Which properties of solids would be most important to consider, and why?' Facilitate a brief class discussion, guiding students to connect properties like hardness and brittleness to the chair's function.

Activity 04

• 25 min · Individual

Individual: Sensory Property Journal

Each student selects three solids, draws them, describes properties using senses, and notes changes from bending or dropping. They reflect on patterns across their choices.

What makes a solid a solid?

Facilitation Tip

In the Sensory Property Journal, model how to sketch an object and label properties with specific evidence from tests.

What to look for

Provide students with three unlabeled solid objects (e.g., a piece of chalk, a metal bolt, a rubber eraser). Ask them to write down two observable properties for each object and classify it as 'brittle' or 'malleable' based on their tests.

A few notes on teaching this unit

Experienced teachers approach this topic by starting with simple, familiar objects before introducing specialized vocabulary like 'brittle' or 'malleable.' Avoid overwhelming students with too many terms at once. Use guided questions to push their observations beyond surface traits, such as asking, 'How does this solid feel compared to the one next to it?' Research suggests that frequent, low-stakes practice with sensory data builds confidence and precision in descriptions.

Successful learning looks like students using multiple senses to describe solids accurately, comparing properties with peers, and adjusting their ideas based on evidence from hands-on tests. They should move from vague descriptions like 'hard' to precise language like 'scratches glass but bends easily.'

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Watch Out for These Misconceptions

• During Predict and Test, watch for students assuming all solids cannot bend or change shape.

  Have students test flexible solids like plastic or rubber strips at the bending station, then compare their results to brittle objects like chalk to adjust their thinking with direct evidence.

• During Station Rotation, watch for students focusing only on shape when describing solids.

  Ask students to rotate through texture and hardness stations first, then return to shape to emphasize that multiple properties define a solid. Provide a checklist with all four properties to guide their observations.

• During Solid Gallery Walk, watch for students describing properties subjectively without consistent criteria.

  Provide a simple Mohs hardness scale or bend test chart at each station, and have students use it to standardize their descriptions before comparing objects in small groups.

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Methods used in this brief

• Stations Rotation