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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English 10
Suggested grade 10 · Unit 1: Literary Decisions
Analyze Conflicting Motivations
Trace a character who wants two things that cannot both be obtained easily.
▷ 2 teacher video choices: Analyze Conflicting MotivationsPreview lesson: Analyze Conflicting Motivations
Goal: Analyze how a character’s conflicting motives affect an interaction and advance the plot.
Before this: Support an inference with more than one detail.
Try together: Compare “Rafi never cares about winning” with a qualified account of competing motives. Which details resist the absolute claim?
Subject-content contributionRL.9-10.3Grades 9–10
35 minutes
English 10
Suggested grade 10 · Unit 1: Literary Decisions
Examine an Interrupted Timeline
Analyze why a writer withholds information and inserts an earlier scene.
▷ 2 teacher video choices: Examine an Interrupted TimelinePreview lesson: Examine an Interrupted Timeline
Goal: Compare chronological and interrupted versions of a scene and explain two effects of their structure.
Before this: Distinguish chronological order from the order a narrator reveals events.
Try together: Discuss whether the flashback confirms guilt or merely directs suspicion. Cite the detail that limits certainty.
Subject-content contributionRL.9-10.5Grades 9–10
Earlier high school starter lessons with teacher video choices →