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
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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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Physics — Algebra and Trigonometry
Suggested grades 11–12 · Unit 2: Energy and Waves
Account for Energy With a Repeatable Algorithm
Construct a paper calculation model that includes transfers outside the chosen mechanical-energy account.
▷ 2 teacher video choices: Account for Energy With a Repeatable AlgorithmPreview lesson: Account for Energy With a Repeatable Algorithm
Goal: Calculate an energy budget and write a repeatable sequence for predicting kinetic energy and speed.
Before this: Use squares, square roots and gravitational energy mgh.
Try together: Together run the algorithm for the same object and height with 80 J transferred from the mechanical account.
Subject-content contributionHS-PS3-1High school band
Supporting literacy connectionRST.11-12.1Grades 11–12
Selected NGSS high school-band contribution; full performance requires additional evidence and instruction.40 minutes
Physics — Algebra and Trigonometry
Suggested grades 11–12 · Unit 2: Energy and Waves
Read Frequency, Wavelength and Speed Together
Use wave relationships while avoiding the claim that a source’s frequency must change whenever the medium changes.
▷ 2 teacher video choices: Read Frequency, Wavelength and Speed TogetherPreview lesson: Read Frequency, Wavelength and Speed Together
Goal: Calculate wavelength and predict how one changed condition affects a wave model.
Before this: Rearrange v=fλ and read units.
Try together: Together calculate the frequency of a model wave with speed 12 m/s and wavelength 0.5 m.
Subject-content contributionHS-PS4-1High school band
Supporting literacy connectionRST.11-12.1Grades 11–12
Selected NGSS high school-band contribution; full performance requires additional evidence and instruction.Earlier high school starter lessons with teacher video choices →