Preview SAT prep
Master the Digital SAT with AI lessons across Reading & Writing and Math, from foundations to advanced problem solving.
Sample lesson
Main Ideas in Passages
How to find the central idea of an SAT passage and rule out too-narrow or too-broad answers.
How to find the central idea of an SAT passage and rule out too-narrow or too-broad answers. This lesson is at the beginner level — by the end, you'll be able to recognise this question type, apply a reliable method, and avoid the traps that cost marks.
SAT Reading & Writing passages are short (25-150 words), so the main idea is almost always the single claim every sentence in the passage is built to support — not the topic, and not any one supporting detail.
Read-only preview. Quizzes and progress tracking start in the full course.
What a mock looks like
SAT Full-Length Mock (Digital)
144 minutes total, with sections timed individually.
- Reading & Writing — Module 132 min
- Reading & Writing — Module 232 min
- Break10 min
- Math — Module 135 min
- Math — Module 235 min
Botanist Ynes Mexía did not begin collecting plants until she was in her fifties, yet her output was remarkably ______: over thirteen years she gathered some 145,000 specimens, among them about 500 species new to science. Which choice completes the text with the most logical and precise word or phrase?
- sporadic
- prolific
- derivative
- tentative