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SCHEME OF WORK
Chemistry
Grade 10 2026
TERM II
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WK LSN STRAND SUB-STRAND LESSON LEARNING OUTCOMES LEARNING EXPERIENCES KEY INQUIRY QUESTIONS LEARNING RESOURCES ASSESSMENT METHODS REFLECTION
2 1-2
Inorganic Chemistry
Relative Atomic Mass - Meaning and calculation
Electron arrangement - Aufbau's principle
By the end of the lesson, the learner should be able to:
- Define Relative Atomic Mass (R.A.M)
- Explain the concept of isotopic abundance
- Connect R.A.M to the values shown on the periodic table
- State the Aufbau's principle
- Apply the order of filling electrons in orbitals
- Compare electron filling to constructing a building from the foundation upwards
- Search for information on Relative Atomic Mass
- Discuss with peers the meaning of isotopic abundance
- Study the relationship between R.A.M and isotopes
- Search for information on Aufbau's principle
- Study the diagram showing order of filling electrons
- Discuss with peers how electrons fill orbitals
What is Relative Atomic Mass and why is it not always a whole number?
In what order do electrons fill the orbitals in an atom?
- Access and Learn Chemistry Learner's Book pg. 27
- Digital devices
- Periodic table
- Access and Learn Chemistry Learner's Book pg. 36
- Digital devices
- Aufbau diagram
- Oral questions - Written exercises - Observation
2 3
Inorganic Chemistry
Electron arrangement - Writing s and p notation I
By the end of the lesson, the learner should be able to:
- Write electron arrangement of elements 1-10 using s and p notation
- Follow the steps for writing electron arrangements
- Apply the rules for filling electrons in s and p orbitals
- Study worked examples on writing s and p notation
- Draw electron arrangements for elements 1-10
- Practise writing s and p notation independently
How do you write the electron arrangement of an element using s and p notation?
- Access and Learn Chemistry Learner's Book pg. 38
- Periodic table
- Digital devices
- Written exercises - Oral questions - Observation
2 4
Inorganic Chemistry
Electron arrangement - Writing s and p notation I
By the end of the lesson, the learner should be able to:
- Write electron arrangement of elements 1-10 using s and p notation
- Follow the steps for writing electron arrangements
- Apply the rules for filling electrons in s and p orbitals
- Study worked examples on writing s and p notation
- Draw electron arrangements for elements 1-10
- Practise writing s and p notation independently
How do you write the electron arrangement of an element using s and p notation?
- Access and Learn Chemistry Learner's Book pg. 38
- Periodic table
- Digital devices
- Written exercises - Oral questions - Observation
2 5
Inorganic Chemistry
Electron arrangement - Writing s and p notation II
By the end of the lesson, the learner should be able to:
- Write electron arrangement of elements 11-20 using s and p notation
- Complete the electron arrangement table for the first 20 elements
- Connect electron arrangements to the position of elements in the periodic table
- Copy and complete the table of electron arrangements for the first 20 elements
- Compare electron arrangements with classmates
- Identify patterns in electron arrangements
What patterns can you observe in the electron arrangements of the first 20 elements?
- Access and Learn Chemistry Learner's Book pg. 39
- Periodic table
- Digital devices
- Written exercises - Oral questions - Observation

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