Class: Senior Secondary School 1 (SS1, SS 1, SSS1, SSS 1)
Term: 3rd Term
Week: 1
Age: 15 years
Duration: 45 minutes
Subject: Music
Curriculum Theme: Music Theory
Previous Lesson: .
Topic: Scales.
Subject Matter: Diatonic major scale, diatonic minor natural scale, constructing scales on given tonics, circle of fifths, number of sharps and flats in key signatures.

Specific Objectives

By the end of the lesson, pupils should be able to:

Cognitive Domain:

Define a musical scale and identify its components.
Explain the pattern of whole and half steps in diatonic major and minor natural scales.
Describe the purpose and structure of the circle of fifths.
State the number of sharps or flats in key signatures of common keys.

Affective Domain:

Appreciate the importance of scales as fundamental building blocks of music.
Show interest in understanding music theory concepts like key signatures.

Psychomotor Domain:

Construct diatonic major scales on given tonics.
Construct diatonic minor natural scales on given tonics.
Draw the circle of fifths showing the order of sharps and flats.

Participate actively in class discussions related to scales and key signatures.
Collaborate with peers to identify and construct different scales.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum for Music.
State Unified Scheme of Work for Senior Secondary Schools.
Comprehensive Music for Senior Secondary Schools 1 by J.B. Adekunle.
Keyboard diagram, scale charts, circle of fifths poster, staff paper.

Instructional Materials

The teacher will teach this lesson with the aid of:

Scale charts.
Circle of fifths poster.
Keyboard diagram.
Staff paper and writing materials.

Rationale for the Lesson

This lesson helps pupils understand the basic structure of music, which is essential for playing instruments, singing, and composing. Learning about scales and key signatures enables pupils to correctly read and interpret musical pieces, forming a strong foundation for advanced musical studies.

Prerequisite/Previous Knowledge

Pupils should have a basic understanding of musical notes, the staff, clefs, and intervals from their previous lessons.

Lesson Content/Board Summary

Scales

Definition of a Scale

A scale is a series of musical notes arranged in a specific ascending or descending order of pitch. Scales form the basic melodic and harmonic material of music.

Diatonic Major Scale

A diatonic major scale is a seven-note scale characterized by a bright and happy sound. It follows a specific pattern of whole (W) and half (H) steps between its notes.

The pattern of whole and half steps for any major scale is:

W-W-H-W-W-W-H

For example, the C Major scale consists of C-D-E-F-G-A-B-C.

Diatonic Minor Natural Scale

A diatonic minor natural scale is a seven-note scale that generally sounds melancholic or sad. It also follows a specific pattern of whole and half steps.

The pattern of whole and half steps for any minor natural scale is:

W-H-W-W-H-W-W

For example, the A Minor natural scale consists of A-B-C-D-E-F-G-A.

Constructing Scales on Given Tonics

To construct a major or minor scale, one must start from a given tonic (the first note of the scale) and apply the correct pattern of whole and half steps.

Steps to construct a scale:

Identify the tonic note.
Apply the correct pattern of whole and half steps (W-W-H-W-W-W-H for major; W-H-W-W-H-W-W for minor natural).
Use sharps (#) or flats (b) as needed to maintain the correct interval pattern.

Circle of Fifths

The circle of fifths is a visual representation that shows the relationships among the 12 pitches of the chromatic scale, their corresponding key signatures, and the associated major and minor keys.

It helps to:

Determine the number of sharps or flats in a key signature.
Show the order in which sharps or flats are added to key signatures.
Illustrate the relationship between relative major and minor keys.

Moving clockwise around the circle adds sharps (C-G-D-A-E-B-F#…), while moving counter-clockwise adds flats (C-F-Bb-Eb-Ab-Db-Gb…).

Number of Sharps and Flats in Key Signatures

Key signatures indicate the sharps or flats that are to be played throughout a piece of music, unless otherwise marked. They are placed at the beginning of the staff.

The order of sharps is: F#, C#, G#, D#, A#, E#, B#.

The order of flats is: Bb, Eb, Ab, Db, Gb, Cb, Fb.

Examples of keys and their key signatures:

C Major: 0 sharps or flats
G Major: 1 sharp (F#)
D Major: 2 sharps (F#, C#)
F Major: 1 flat (Bb)
Bb Major: 2 flats (Bb, Eb)

Teaching Methods/Instructional Techniques

Discussion, Lecture, Demonstration, Question and Answer, Visual Aids

Instructional Procedures

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: The teacher greets the pupils and reviews their previous knowledge on musical notes and intervals. The teacher then asks pupils what they understand by a “scale” in everyday life (e.g., a ladder, a series of steps) and relates it to music.
Pupils’ Activity: Pupils respond to questions and share their ideas on the concept of a scale.
Learning Point: Pupils are reminded of prior knowledge and introduced to the topic of musical scales.

Step 2: Explanation of Scales and Diatonic Major Scale

Time: 10 minutes
Teaching Skill: Explanation/Demonstration
Teacher’s Activity: The teacher defines a musical scale and explains the characteristics of a diatonic major scale. Using a keyboard diagram and scale chart, the teacher demonstrates the W-W-H-W-W-W-H pattern using the C Major scale as an example.
Pupils’ Activity: Pupils listen attentively, observe the demonstrations, and ask questions for clarification.
Learning Point: Pupils understand the definition of a scale and the structure of a diatonic major scale.

Step 3: Diatonic Minor Natural Scale

Time: 8 minutes
Teaching Skill: Explanation/Demonstration
Teacher’s Activity: The teacher explains the characteristics of a diatonic minor natural scale and demonstrates its W-H-W-W-H-W-W pattern using the A Minor natural scale on the keyboard diagram. The teacher highlights the difference in sound quality between major and minor scales.
Pupils’ Activity: Pupils listen, observe, and note the distinct pattern and sound of the minor natural scale.
Learning Point: Pupils differentiate between major and minor natural scales based on their step patterns.

Step 4: Constructing Scales on Given Tonics

Time: 7 minutes
Teaching Skill: Practical Application/Guided Practice
Teacher’s Activity: The teacher guides pupils on how to construct a major scale starting from a different tonic, for example, G Major, using the W-W-H-W-W-W-H pattern and identifying the need for sharps or flats. Pupils are encouraged to try constructing other scales.
Pupils’ Activity: Pupils actively participate in constructing scales, applying the step patterns, and identifying necessary accidentals.
Learning Point: Pupils develop the skill of constructing diatonic major and minor natural scales.

Step 5: Introduction to the Circle of Fifths

Time: 7 minutes
Teaching Skill: Explanation/Visual Aids
Teacher’s Activity: The teacher introduces the concept of the circle of fifths using a poster. The teacher explains its purpose in showing relationships between keys and the order of sharps and flats. The teacher demonstrates how to move clockwise for sharps and counter-clockwise for flats.
Pupils’ Activity: Pupils observe the circle of fifths poster, listen to the explanation, and ask questions about its structure and use.
Learning Point: Pupils understand the concept and utility of the circle of fifths.

Step 6: Sharps and Flats in Key Signatures

Time: 5 minutes
Teaching Skill: Explanation/Questioning
Teacher’s Activity: The teacher explains what key signatures are and how they relate to the circle of fifths. The teacher lists the order of sharps and flats and shows examples of key signatures for keys like G Major (1 sharp) and F Major (1 flat).
Pupils’ Activity: Pupils listen, observe the examples, and try to identify the number of sharps or flats for given keys using the circle of fifths.
Learning Point: Pupils connect the circle of fifths to understanding key signatures and their sharps/flats.

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

Define a musical scale.
State the pattern of whole and half steps for a diatonic major scale.
Construct a D major scale on the staff.
Explain the purpose of the circle of fifths.
List the first three sharps in their correct order.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 3 minutes
Teaching Skill: Summarization
Teacher’s Activity: The teacher summarizes the key points of the lesson, reinforcing the importance of scales and key signatures in music. The teacher assigns homework for pupils to draw the complete circle of fifths and construct an E minor natural scale.
Pupils’ Activity: Pupils listen to the summary, ask any final questions, and note down the homework.
Learning Point: Pupils consolidate their learning and prepare for further practice.

Lesson Keywords

Scale – A series of musical notes arranged in ascending or descending order of pitch.
Diatonic – Refers to scales that contain five whole steps and two half steps within an octave.
Major Scale – A diatonic scale with a bright sound, following the W-W-H-W-W-W-H pattern.
Minor Scale (Natural) – A diatonic scale with a melancholic sound, following the W-H-W-W-H-W-W pattern.
Tonic – The first and most important note of a scale, which gives the scale its name.
Whole Step (Whole Tone) – An interval equivalent to two half steps.
Half Step (Semitone) – The smallest interval in Western music.
Circle of Fifths – A diagram showing the relationships between musical keys and their key signatures.
Key Signature – A set of sharps or flats written at the beginning of a musical staff, indicating the key of the music.
Sharps (#) – Symbols that raise a note by a half step.
Flats (b) – Symbols that lower a note by a half step.

Differentiation

For pupils who grasp concepts quickly, the teacher can challenge them to identify relative minor keys from the major keys on the circle of fifths or to construct harmonic and melodic minor scales. For pupils who require more support, the teacher will provide additional one-on-one guidance, simplified charts, and more practice examples with immediate feedback.

Note for teachers using this lesson plan

Ensure that all visual aids, such as keyboard diagrams and the circle of fifths poster, are clear and easily visible to all pupils. Encourage active participation through asking questions and allowing pupils to demonstrate scale construction on the board or a virtual keyboard. Emphasize the practical application of scales in understanding songs and instrumental pieces.