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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Earth and Environmental Science
Suggested grades 9–12 · Unit 1: Earth Evidence and Energy
Read a Seafloor Age Pattern
Evaluate an idealized age transect as evidence for a plate-motion explanation.
▷ 2 teacher video choices: Read a Seafloor Age PatternPreview lesson: Read a Seafloor Age Pattern
Goal: Plot ages against distance and defend a qualified spreading interpretation with two data comparisons.
Before this: Use signed coordinates and unit conversions.
Try together: Together predict the model age at +300 km if the same average rate continued, then label it a prediction rather than a supplied measurement.
Subject-content contributionHS-ESS1-5High 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
Earth and Environmental Science
Suggested grades 9–12 · Unit 1: Earth Evidence and Energy
Model a Changing Energy Budget
Connect reflection, outgoing radiation and an initial energy imbalance without treating the model as a weather forecast.
▷ 2 teacher video choices: Model a Changing Energy BudgetPreview lesson: Model a Changing Energy Budget
Goal: Construct two energy budgets and explain the direction of the initial change under stated assumptions.
Before this: Add and subtract energy quantities.
Try together: Together analyze an initial outgoing-radiation decrease from 70 to 68 while reflection remains 30.
Subject-content contributionHS-ESS2-4High school band
Supporting literacy connectionRST.9-10.7Grades 9–10
Selected NGSS high school-band contribution; full performance requires additional evidence and instruction.Earlier high school starter lessons with teacher video choices →