Meaning of Atom | First Ten Chemical Elements | Periodic Table with Symbols and Numbers Primary 6 (Basic 6) Term 2 Week 8 Basic Science and Technology

BASIC SCIENCE

BASIC SCIENCE AND TECHNOLOGY

SECOND TERM

WEEK – 8

PRIMARY 6

THEME – LIVING AN NON LIVING THINGS 

PREVIOUS – Various Colours Around Us | Components of Colour | Types of Colour | Production of Colours Primary 6 (Basic 6) Term 2 Week 6 Basic Science and Technology

TOPIC – ATOM AND ITS CHEMICAL ELEMENTS 

LEARNING AREA

1. Introduction

2. Meaning of Atom

3. First Ten Chemical Elements

4. Other Chemical Elements

5. Lesson Evaluation and Weekly Assessment (Test)

PERFORMANCE OBJECTIVES 

By the end of the lesson, most of the students should have attained the following objectives –

1. explain what atom is.

2. develop a definition of element and know what an atom means.

3. state the first ten elements on the periodic table with their symbols.

ENTRY BEHAVIOUR

The pupils can

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of chart showing periodic table.

METHOD OF TEACHING 

Choose a suitable and appropriate methods for the lessons.

Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons. 

REFERENCE MATERIALS

1. Scheme of Work

2. 9 – Years Basic Education Curriculum

3. Course Book

4. All Relevant Material

5. Online Information

CONTENT OF THE LESSON  

LESSON 1 – INTRODUCTION

Atom is the smallest possible unit of a chemical element.

The chemical element is a basic substance that cannot be broken down into simpler substances.

Each of the chemical element has a symbol and number.

The symbol for some elements is the first letter or first two letters of its name.

For example,

• H is the symbol for Hydrogen,

• He is the symbol for Helium,

• O is the symbol for oxygen, etc.

MEANING OF PERIODIC TABLE

The periodic table is also known the periodic table of elements.

Periodic table is arrangement of chemical elements from the lowest atomic number (hydrogen) to the element with the highest atomic number (oganesson).

The atomic number of an element is the number of protons in the nucleus of an atom of that element.

There are 118 known chemical elements.

There are 92 chemical elements found in nature.

Additional 20 elements are created by the scientists.

While the remaining are much more common than others.

The first ten elements with their symbols and atomic number in the periodic table are tabulated below:

LESSON 2 – PERIODIC TABLE OF ELEMENTS WITH PICTURES

Follow the link for relevant picture….

LESSON 3 – REVISION AND WEEKLY ASSESSMENT (TEST) 

PRESENTATION

To deliver the lesson, the teacher adopts the following steps:

1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the students some questions; the teacher –

2. Displays chart showing the tubular form of the first ten chemical elements.

3. Lets examine and identify each of the chemical elements on the chart each their appropriate symbol and number.

Pupil’s Activities – Examine and identify chemical elements with correct symbols and numbers.

4. Uses the chart and pupil’s responses to introduce the lesson.

5. Explains the meaning of atom and its chemical elements.

Pupil’s Activities – Pay attention to the lesson introduction to understand the concept of chemical elements.

6. Displays chart showing the complete chemical elements.

7. Lets pupils examine and identify other chemical elements with appropriate symbols, numbers and pictures.

Pupil’s Activities – Identify other chemical elements with appropriate symbols, numbers and pictures.

8. Leads pupils to explain the meaning of periodic table as arrangement of chemical elements from the lowest atomic number (hydrogen) to the element with the highest atomic number (oganesson).

Pupil’s Activities – Explain the meaning of periodic table of chemical elements.

9. Draws pupil’s attention on the first ten chemical elements.

Pupil’s Activities – Represent first ten chemical elements on tabular form with their correct symbol and number.

11. Summarizes the lesson on the board.

Pupil’s Activities – Take active part in the summary of the lesson and write as instructed.

CONCLUSION

To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.

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LESSON EVALUATION 

Teacher ask pupils to:

1. explain what atom is.

2. develop a definition of element and know what an atom means.

3. state the first ten elements on the periodic table with their symbols.