Mathematics
- Algebra I →Suggested: Grades 9–10
- Geometry →Suggested: Grades 9–11
- Algebra II →Suggested: Grades 10–12
- Precalculus and Trigonometry →Suggested: Grades 11–12
- Statistics and Probability →Suggested: Grades 10–12
High School Curriculum Explorer · Grades 9–12
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138 original mini-lessons with video choices23 courses9 subject areas
Suggested pathways · Selected standards contributions · No calculus
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Each course has six lessons in three suggested units. Grade ranges guide placement; they are not universal requirements.
English language arts
- English 9 →Suggested: Grade 9
- English 10 →Suggested: Grade 10
- English 11 →Suggested: Grade 11
- English 12 →Suggested: Grade 12
Science
- Biology →Suggested: Grades 9–10
- Chemistry →Suggested: Grades 10–11
- Physics — Algebra and Trigonometry →Suggested: Grades 11–12
- Earth and Environmental Science →Suggested: Grades 9–12
Social studies
- World History →Suggested: Grades 9–10
- United States History →Suggested: Grades 10–11
- Civics and Government →Suggested: Grades 11–12
- Economics and Personal Finance →Suggested: Grades 11–12
Visual arts
- Visual Arts →Suggested: Grades 9–12
Music
- Music →Suggested: Grades 9–12
Health and physical education
- Health and Physical Education →Suggested: Grades 9–12
Computer science and digital literacy
- Computer Science and Digital Literacy →Suggested: Grades 9–12
World languages
- Spanish I →Suggested: Grades 9–12
- Spanish II →Suggested: Grades 10–12
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2 matching lessons
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Music
Suggested grades 9–12 · Unit 2: Harmony and Form
Support a Melody With a Chord Plan
Analyze a simple tonal model without treating one progression as a universal rule for all music.
▷ 2 teacher video choices: Support a Melody With a Chord PlanPreview lesson: Support a Melody With a Chord Plan
Goal: Match chord tones to a supplied melody and justify two harmonic decisions.
Before this: Recognize the C-major pitch set.
Try together: Together find two possible supporting chords for the final C and compare the resulting sense of continuation or return within this model.
Supporting literacy connectionSL.9-10.1Grades 9–10
Subject-content alignment not yet verified40 minutes
Music
Suggested grades 9–12 · Unit 2: Harmony and Form
Make Contrast That Still Belongs
Create an ABA paper composition using a clear motif transformation.
▷ 2 teacher video choices: Make Contrast That Still BelongsPreview lesson: Make Contrast That Still Belongs
Goal: Plan an ABA structure and demonstrate two transformations while preserving an identifiable motif relationship.
Before this: Identify repetition and contrast in a pattern.
Try together: Together verify that B’s durations sum to four and identify which relationships are preserved versus changed.
Supporting literacy connectionSL.11-12.1Grades 11–12
Subject-content alignment not yet verifiedEarlier high school starter lessons with teacher video choices →