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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See what a course builds on, follow a suggested unit path and practice a useful skill. For students, families, homeschoolers, tutors and teachers.
138 original mini-lessons with video choices23 courses9 subject areas
Suggested pathways · Selected standards contributions · No calculus
A starter map, with no accreditation or graduation credit.
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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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Biology
Suggested grades 9–10 · Unit 3: Populations and Biological Evidence
Build an Ecosystem Energy Budget
Use proportional data while keeping energy conservation distinct from biomass transfer.
▷ 2 teacher video choices: Build an Ecosystem Energy BudgetPreview lesson: Build an Ecosystem Energy Budget
Goal: Calculate two transfer fractions and account for energy not stored as new biomass at the next level.
Before this: Use percentages and define a system boundary.
Try together: Together identify the 17,600 kJ difference between producer and primary-consumer production and explain why it cannot all be labeled “heat” without more evidence.
Subject-content contributionHS-LS2-4High school band
Supporting literacy connectionRST.9-10.7Grades 9–10
Selected NGSS high school-band contribution; full performance requires additional evidence and instruction.40 minutes
Biology
Suggested grades 9–10 · Unit 3: Populations and Biological Evidence
Explain a Population Shift Without Intent
Connect inherited variation, resource limits and reproductive success in an original model.
▷ 2 teacher video choices: Explain a Population Shift Without IntentPreview lesson: Explain a Population Shift Without Intent
Goal: Construct a natural-selection explanation using four required factors and distinguish population change from individual intention.
Before this: Know inheritance and calculate a proportion.
Try together: Together revise “The beetles became dark because they wanted to survive” using variation already present before predation.
Subject-content contributionHS-LS4-2High school band
Supporting literacy connectionRST.9-10.1Grades 9–10
Selected NGSS high school-band contribution; full performance requires additional evidence and instruction.Earlier high school starter lessons with teacher video choices →