Create a standard based lesson plan for the properties of metals and non metals for grade 11 chemistry
Lesson Title: Properties of Metals and Non-metals
Grade Level: 11th
Subject: Chemistry
Time Required: 2 class periods (90 minutes each)
Lesson Objectives:
1. Students will be able to identify and describe the properties of metals and non-metals.
2. Students will be able to explain the trends in physical properties within the periodic table.
3. Students will be able to compare and contrast the chemical properties of metals and non-metals.
4. Students will be able to predict the reactivity of metals based on their position in the periodic table.
Materials:
- Periodic table
- Paper and pencils for each student
- Textbooks or online resources
- Safety goggles
- Samples of metals and non-metals (optional)
Procedure:
Day 1:
Introduction (10 minutes):
1. Begin the lesson by asking students what they already know about metals and non-metals. Write their responses on the board.
Exploration of Physical Properties (30 minutes):
1. Distribute the periodic table to each student and explain how to read the information about metals and non-metals.
2. Ask students to create a two-column chart and label one column "Metals" and the other "Non-metals".
3. Instruct students to research and complete the chart with the physical properties of metals and non-metals. Encourage them to use their textbooks or reliable online resources.
4. After they have completed the chart, discuss their findings as a class. Emphasize the following properties:
- Metals: Luster, malleability, high conductivity, ductility, and high melting/boiling points.
- Non-metals: Dull, brittle, poor conductivity, low melting/boiling points.
Discussion of Trends (25 minutes):
1. Introduce the concept of trends in the periodic table by explaining the periodicity of elements.
2. Discuss how trends in physical properties (e.g., melting/boiling points, metallic character) can be observed in the periodic table as students compare elements in the same group and period.
3. Provide examples and guide a class discussion on how these trends can be explained based on the arrangement of electrons in atoms.
Day 2:
Exploration of Chemical Properties (30 minutes):
1. Review the chart from the previous day and discuss the chemical properties of metals and non-metals.
2. Explain that metals typically form positive ions (cations) by losing electrons while non-metals tend to gain electrons to form negative ions (anions).
3. Assign students to work in pairs and research examples of common chemical reactions involving metals and non-metals. They should describe the reactions and identify the type of reaction (e.g., oxidation-reduction, displacement).
4. After the pairs present their findings, lead a class discussion focused on the reactivity of metals based on their position in the periodic table.
Assessment Activity (20 minutes):
1. Distribute a set of multiple-choice questions related to the properties of metals and non-metals.
2. Instruct students to complete the assessment individually.
3. Review the answers together as a class to ensure understanding.
Conclusion (5 minutes):
1. Recap the key points covered in the lesson, specifically focusing on the properties of metals and non-metals and their trends on the periodic table.
2. Answer any remaining questions from students.
Extension Activity (Optional):
1. If available, provide samples of different metals and non-metals for students to observe and test various properties, such as conductivity, malleability, or melting points.
2. Students can record their observations and compare them with the properties discussed in class.
Note: It is essential to ensure student safety during any physical experimentation. Follow necessary safety guidelines and protocols.
Grade 11 Chemistry Lesson Plan: Properties of Metals and Non-metals
Objective: By the end of this lesson, students will be able to identify and explain the properties of metals and non-metals.
Materials:
- Textbooks or informational resources on metals and non-metals
- Periodic table
- Samples of common metals and non-metals
- Whiteboard or chalkboard
- Markers or chalk
- Worksheets or handouts (optional)
Procedure:
1. Introduction (5 minutes)
- Begin the lesson by engaging the students in a discussion about their knowledge of metals and non-metals. Ask questions like: What are some examples of metals/non-metals? What do you know about their properties?
2. Background Information (10 minutes)
- Provide the students with a brief overview of metals and non-metals, explaining their classification on the periodic table. Highlight the basic properties of both, such as the ability of metals to conduct electricity and non-metals' tendency to gain electrons.
3. Properties of Metals (20 minutes)
- Discuss the properties of metals in detail. Slowly introduce properties such as malleability, ductility, and thermal and electrical conductivity. Use examples of common metals to make it relatable for students. Write down the key properties on the board as you go.
4. Properties of Non-metals (20 minutes)
- Shift the focus to non-metals. Discuss properties such as brittleness, low conductivity, and high electronegativity. Again, use examples of non-metals to illustrate these properties. Write down the key properties on the board.
5. Classifying Elements (15 minutes)
- Engage the students in an activity to classify elements on the periodic table as metals, non-metals, or metalloids. Give them a periodic table and ask them to identify different elements based on their properties discussed earlier. Provide guidance and clarify any doubts.
6. Application and Analysis (15 minutes)
- Present the students with different scenarios or real-life examples where the properties of metals and non-metals are relevant. Ask them to explain how the properties of specific elements contribute to their usage in different industries or applications. Encourage critical thinking and class participation.
7. Conclusion (5 minutes)
- Summarize the key points discussed in the lesson, emphasizing the properties of metals and non-metals. Allow students to ask any remaining questions or seek clarification on any concepts covered.
Optional Follow-up Activities:
- Provide worksheets or handouts for students to reinforce their understanding of the topic.
- Conduct a laboratory activity to visually observe and test properties of different metals and non-metals.
- Assign a homework assignment for students to research and present a case study on an element or compound that exemplifies the properties of metals or non-metals.
Note: The duration of each section can be adjusted based on the class's pace and the level of engagement within the classroom.