Lesson Plan of ELEMENTS of Class 9th
This article contains complete lesson plan or integrated lesson plan of ‘Elements‘ of Class IX NCERT following CBSE board. It is useful for both macro-teaching and micro-teaching.
Pdf of this article is also available in complete tabular form
- To develop interest of students in physical science.
- To develop an inquiry spirit in the students.
- To help students to see the physical science in relation to the rest of the culture.
- To develop interest in questioning.
- To develop critical thinking and scientific attitude.
- To develop supervisory ability in students.
- To develop problem solving skills in students.
- To make the students aware about inventions in the field of physical science and acquaint them with the knowledge of different streams of physical science.
- Students will be able to define element.
- Students will be able to classify elements.
- Students will be able to use metals and non-metals in their daily life.
Chart, Roller board, pointer and other useful classroom equipments.
Students are already aware about matter.
Introductory questions are available only in pdf, to download the pdf kindly click below in the post.
STATEMENT OF AIM
So, today we are going to study the topic ‘Elements’.
Teaching point 1: Definition of Elements
Robert Boyle was the first scientist to use the term ‘element’.
- Lavosier defined element as a basic form of matter that cannot be broken down into simpler substances by chemical reactions.
- More than 100 elements are known at present.
- Majority of the elements are solid, eleven elements are in gaseous state at room temperature.
- Mercury and Bromine are in liquid state at room temperature.
- Elements can be divided into metals, non-metals and metalloids on the basis of their properties.
Teaching point 2: Properties of Metals
Metals usually have following properties:
- Metals are lustrous (shiny).
- They are good conductors of heat and electricity.
- Metals are ductile that is, they can be drawn into wires.
- They are malleable i.e. they can be hammered into thin sheets.
- Metals are sonorous i.e. they make a ringing sound when hit.
Examples: Gold, silver, copper, aluminium, iron, sodium, potassium, etc.
- Mercury is the only metal which is liquid at room temperature.
Teaching point 3: Properties of Non-Metals
Non-metals usually have following properties:
- Non-metals display variety of colours.
- They are poor conductors of heat and electricity.
- They are not lustrous, sonorous or malleable.
Examples: Hydrogen, oxygen, carbon, bromine, chlorine, etc.
- Bromine is liquid at room temperature.
To download the pdf- CLICK HERE
Elements those have intermediate properties between metals and non-metals are called metalloids.
Examples of metalloids: Boron, Silicon, Germanium, etc.
- Elements cannot be broken down into simpler substances by chemical reaction.
- Robert Boyle used the term ‘element’ for the first time.
- Elements are classified into three types : metals, non-metals and metalloids.
- Metals are sonorous, lustrous, malleable, ductile.
- Mercury and bromine are liquid at room temperature.
- Metalloids show intermediate properties of both metals and non-metals.
Pupil-teacher will supervise the students work and solve the problems of the students.
Q1. ___________ metal is liquid at room temperature.
Q2. Property of malleability is present in _____________.
Q3. Which of the following is a non-metal:
Q4. Non-metals are ductile. (True/False)
Q5. Metalloids have properties of both metal and non-metals. (True/False)
Q. Write down the properties of metals and give some examples of metals.
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