UNIVERSITI BRUNEI DARUSSALAM

PS 2206

ICT in Science & Math

Lesson Plan and Activities

on ‘PROPERTIES OF MATERIALS’.

Lecturer: Dr. Leong Yong Pak

By: Siti Safwanah Aba (06B0406)

B. A. Primary Education/Year 4

2008/2009

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LESSON PLAN

Class: Primary 4

No. of pupils:

Time:

Theme: Variety and classification

Unit 4: Variety of materials

Topic: Properties of materials

Previous knowledge:

Pupils have learned about different kinds of materials and its uses where pupils are already able to state the seven different kinds of materials. Pupils are also able to classify each material into its different categories.

References:

• “Go With Science! Primary 4 Brunei Darussalam” (2003) Curriculum Development Department, Ministry of Education.
• “Go With Science! Primary 4 Brunei Darussalam (workbook)” (2003) Curriculum Development Department, Ministry of Education.
• “Upper Primary Science Curriculum Brunei Darussalam” (2002) Curriculum Development Department, Ministry of Education.
• “Teacher’s Guide SCIENCE Darjah 4 (Primary School)” (1989) Curriculum Development Department, Ministry of Education

Aim/s:

From this lesson, pupils will understand the great variety of the materials around us and gain knowledge about the different properties of each materials.

Objectives:

At the end of the lesson, the pupils will be able to:

1. Discover the 5 different properties of materials (strength, hardness, flexibility, floating or sinking in water and solubility)
2. Classify materials according to its properties
3. Appreciate that materials do help to shape the world today

Teaching aids: metal wire, cotton thread, weights, retort stand, metal ruler, plastic ruler, branch, ping pong ball, metal spoon, match stick, eraser, bottle cap, paper clip, container filled with water, sugar, sand, spoon, beaker, computer (practice activities).

TEACHING & LEARNING ACTIVITIES:

Introduction

Teacher recalls the last topic taught (Different classes of materials) by asking questions:

• How many classes of materials we have learned? Seven
• Can you name them? Wood, rubber, metal, glass, plastics, fabric and ceramics.
• Give an example of different classes of materials. Wood: furniture, Rubber: balloons, Metal: copper, Glass: windows, Plastics: food containers, Fabric: cotton, Ceramics: bricks.

Teacher displays some materials on the table and asks pupils to describe each material by using his/her senses whether it is hard, soft etc. Teacher writes down the pupils’ description on the board and tells that the descriptions are actually the topic “Properties of Materials.”

Main Activity

Teacher divides pupils into four groups and asks each group to go to different corner prepared earlier. Each group will do their investigation and discover about the properties of materials: strength, hardness, flexibility, floating or sinking and solubility. Each pupil will be given the Experiment Sheet and record their findings on that paper as well.

For Experiment 1: strength, each group will investigate which material (metal wire or cotton thread) is stronger by using it to hang the weight on the retort stand. Pupils then make a conclusion from the experiment that metal wire is stronger than cotton thread.

In Experiment 2: hardness, pupils are going to find out which one is harder; metal ruler or plastic ruler by scratching it to one another. Pupils then make a conclusion from the experiment, that the metal ruler is harder than the plastic ruler.

In Experiment 3: flexibility, pupils are asked to bend the materials (plastic ruler and branch). Pupils then make a conclusion from the experiment that the plastic ruler is flexible as it can be bend without breaking.

For Experiment 4: floating or sinking, pupils are asked to fill the container with water and predict what might happen to the material if it is put into the water. After pupils do their prediction, pupils will then put the materials into the container, observe the result and record it on their paper. Pupils then make a conclusion based on the experiment that a material that falls to the bottom of the container ‘sinks’ and a material that comes up to the surface of the water ‘floats’.

Whereas in Experiment 5: solubility, pupils are asked to put in some materials (sugar and sand) into the water and stir. Pupils then observe what happen to the materials. Teacher will then explain to the pupils that, if there is no more substance seen, it has dissolved in the water; and we say it is soluble in water and if it does not dissolve, it is insoluble in water.

After pupils have completed their investigation, they will need to submit their Experiment Sheet and then teacher can discuss the conclusion of the investigation on properties of materials with the pupils. After that, pupils may continue with other activities.

Practice

To enhance the concept pupils have learned, they will be asked to try games and activities regarding materials online:

Characteristics of Materials

Digger and the Gang

Grouping and Changing Materials

Grouping and Describing Changes in Materials

Material Labels

Material Matters

Material World

Materials Lab

Sorting and Using Materials

Why Study Materials

Wood and Paper Module

Pupils may continue to practice about materials further at home by going online.

Closure

Teacher reflects back what pupils have learned by asking questions:

• How many properties of materials we have learned today? Five
• What are they? Strength, hardness, flexibility, floating and sinking, and solubility.

Evaluation (teacher’s self evaluation):

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