Teacher orientation
This week asks: How can one system describe both the size and the exact sound of a pitch relationship? The three meetings move from shared experience to explicit theory and then transfer. Require students to predict before measuring or labeling; use performance and explanation together as evidence.
Semitone count alone names an interval; every fourth is perfect; inversion means moving both notes.
Three-meeting sequence
Number before quality
Count generic interval size inclusively
Measure classroom distances using two conventions to expose inclusive counting.
Teach line/space counting and compound versus simple intervals. Keep spelling distinct from keyboard distance.
Pairs name generic intervals in melodies and construct requested sizes above given notes.
Why is C to G a fifth, not four?
Complete a generic-interval fluency set.
Quality
Determine major, minor, perfect, augmented, and diminished quality
Build intervals above C inside major scale, then alter one pitch.
Establish perfect and major families; derive minor, augmented, and diminished by semitone change.
Interval laboratory: name, build, play, sing, and correct twelve examples.
Name C to A♭ and justify both parts of the label.
Analyze all adjacent intervals in a short melody.
Inversion and hearing
Invert intervals accurately
Invert physical interval cards and observe sums.
Teach number sum of nine and quality pairs; use inversion to simplify compounds and check work.
Aural stations compare harmonic and melodic presentation without song-mnemonic dependence.
Invert a minor sixth and state the result.
Create a six-item interval quiz with key.
Student synthesis task
Claim–evidence–application: Students submit one notated or analytical artifact from the week, a 150–250 word explanation using at least four vocabulary terms, and a brief performance, recording, or demonstration. The explanation must identify a decision, cite musical evidence, and connect the idea to unfamiliar material.
Assessment and answer guidance
| Prompt | Value |
|---|---|
| 1. How do you find interval number? | 2 points |
| 2. What is the inversion of an augmented fourth? | 3 points |
| 3. Why can C–D♯ and C–E♭ sound alike but be different intervals? | 3 points |
| 4. Apply the week’s central idea to a new four-to-eight-measure example and explain the reasoning. | 7 points |
Teacher answer guidance
1. Count letter names inclusively from lower to upper pitch.
2. A diminished fifth.
3. Spelling changes the diatonic number and theoretical function.
4. Award 2 points for accurate identification or construction, 2 for correct notation/terminology, 2 for evidence tied to the example, and 1 for a clear conclusion. Accept alternate solutions when the musical reasoning is defensible.
Access, differentiation, and extension
Support without lowering the target
Always determine number first, then compare with the appropriate major/perfect reference. Preteach vocabulary, model one complete think-aloud, reduce the number of simultaneous variables, and allow a second attempt after feedback.
Extension
Classify compound intervals and reduce them to simple inversions.
Evidence to retain
Keep the exit tickets, synthesis artifact, and scored application prompt. Together they show factual fluency, transfer, and the student’s ability to explain music—not only select an answer.