Lesson Plan for Junior Secondary 1 - Basic Tech - Properties Of Material

Lesson plan for a Basic Tech class, aimed at Junior Secondary 1 students, focusing on the topic "Properties of Materials." --- **Lesson Plan: Properties of Materials** **Subject:** Basic Technology **Grade Level:** Junior Secondary 1 **Duration:** 60 minutes **Topic:** Properties of Materials **Objectives:** By the end of the lesson, students should be able to: 1. Identify different types of materials. 2. Understand and explain various properties of materials. 3. Classify materials based on their properties. 4. Relate the properties of materials to their practical applications. **Materials Needed:** - Samples of different materials (e.g., wood, plastic, metal, glass, fabric) - Magnifying glasses - Water, oil, sand - A worksheet for notes and exercises - A projector and a computer for a presentation (if available) **Introduction (10 minutes):** 1. **Greeting and Roll Call:** - Welcome students and take attendance. 2. **Hook:** - Show a short video or presentation clip showing various everyday objects and ask students what materials they think these objects are made of. - Brief discussion: "Why do you think different materials were chosen for these objects?" **Direct Instruction (15 minutes):** 1. **Explanation:** - Introduce the term "Material". - Explain that materials are substances or components with certain physical properties that are used to make objects. 2. **Types of Materials:** - Classify materials into five main categories: metals, plastics, ceramics, wood, and fabrics. 3. **Properties of Materials:** - Discuss key properties like strength, elasticity, thermal conductivity, electrical conductivity, hardness, flexibility, and durability. - Provide examples for each property (e.g., metals are conductive, glass is brittle but hard). 4. **Practical Applications:** - Relate properties to practical applications (e.g., metals in construction because of their strength, wood in furniture for its workability). **Guided Practice (15 minutes):** 1. **Group Activity:** - Divide students into small groups and provide each group with a set of materials. - Give each group a worksheet where they will record each material's observable properties (e.g., strength, texture, flexibility). - Rotate groups to examine different materials. 2. **Class Discussion:** - Each group presents their findings. - Discuss any differences or unique observations made by different groups. **Independent Practice (10 minutes):** 1. **Worksheet Exercise:** - Hand out a worksheet with various objects listed (like a spoon, pencil, window) and ask students to identify the material the object is made from and list its properties. **Review and Assessment (5 minutes):** 1. **Recap Key Points:** - Quickly go over the main types of materials and their properties. 2. **Question and Answers:** - Ask a few quick oral questions to ensure understanding (e.g., "Why is copper used in electrical wiring?" "What property does wood have that makes it suitable for making pencils?"). **Closing (5 minutes):** 1. **Summary:** - Summarize the lesson and reinforce the connection between material properties and their uses. 2. **Homework and Announcements:** - Assign a short homework where students have to observe and list at least five objects at home, identify the materials, and describe their properties. - Announce next lesson’s topic and any upcoming assessments or projects. **Assessment:** - Participation in group activity. - Completion and accuracy of worksheet. - Homework submission and correctness. --- By the end of this lesson, students should have a foundational understanding of the different types of materials and their properties and be able to apply this understanding to practical scenarios.