ACT · Learn
40 lessons in 14 units, about 58 h 30 min of reading and core practice. Each lesson ends with a quick check.
Unit 1
38–43% of scored English questions (15–17 items): deciding whether text serves the essay’s purpose and focus, and whether ideas are logically organized and connected, including revision of the argumentative essay that appears on every form.
3 lessons · 5 h 10 min of study · ≈11% of the test
Unit 2
18–23% of scored English questions (7–9 items): using language precisely and concisely and keeping a consistent style and tone.
2 lessons · 2 h 20 min of study · ≈5% of the test
Unit 3
38–43% of scored English questions (15–17 items): sentence structure and formation, punctuation and usage. Fully rule-based, so it is the fastest route to English points.
5 lessons · 6 h 50 min of study · ≈11% of the test
Unit 4
10–12% of scored Math questions (4–5 items): real and complex number systems, integer properties, exponents and radicals, plus occasional vectors and matrices.
1 lesson · 1 h 40 min of study · ≈4% of the test
Unit 5
17–20% of scored Math questions (7–8 items): linear equations, inequalities and systems, linear graphs, and polynomial, quadratic, rational and radical expressions and equations.
3 lessons · 4 h 20 min of study · ≈6% of the test
Unit 6
17–20% of scored Math questions (7–8 items): function notation and concepts, graphs and transformations, exponential and logarithmic functions, trigonometric functions and sequences.
4 lessons · 5 h 50 min of study · ≈6% of the test
Unit 7
17–20% of scored Math questions (7–8 items): plane figures, area and volume, circles, coordinate geometry and conics, and right-triangle trigonometry. No formula sheet is provided.
4 lessons · 5 h 40 min of study · ≈6% of the test
Unit 8
12–15% of scored Math questions (5–6 items): describing and interpreting data, study design, probability and counting.
2 lessons · 2 h 50 min of study · ≈4% of the test
Unit 9
Integrating Essential Skills is 20% of scored Math questions (8 items). It applies pre-high-school skills (rates, percentages, proportions, averages, area and volume) in multistep problems. Modeling (20% or more) is an overlapping code for items that build or interpret a model.
2 lessons · 3 h of study · ≈6% of the test
Unit 10
44–52% of scored Reading questions (12–14 items): reading closely to find what a text says and implies, determining central ideas and themes, and understanding relationships across a text.
3 lessons · 4 h 20 min of study · ≈11% of the test
Unit 11
26–33% of scored Reading questions (7–9 items): word meanings and word choice, text structure and function, and author’s purpose and point of view.
2 lessons · 2 h 50 min of study · ≈7% of the test
Unit 12
19–26% of scored Reading questions (5–7 items): evaluating arguments and synthesizing across paired passages and across text and graphics.
3 lessons · 3 h 50 min of study · ≈6% of the test
Unit 13
The optional Science test (reported 1–36 and in the STEM score): interpreting data, analyzing experiments, and evaluating competing arguments and models across biology, chemistry, physics, Earth/space science and engineering design.
4 lessons · 6 h 40 min of study · ≈14% of the test
Unit 14
The optional 40-minute essay, scored 2–12 in four domains. It evaluates an issue and three perspectives, and is reported separately and in the ELA score.
2 lessons · 3 h 10 min of study · ≈6% of the test
Start here
English: production of writing · Lesson 1 of 3
Add, delete or keep items and writer’s-goal questions. Decide whether text belongs, what it contributes, and whether the essay accomplishes a stated purpose.
1 h 50 min of study≈4% of the test
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Every lesson is free to read. With an account, finished lessons are ticked off, quick checks feed your mastery, and flashcards come back for review.
Strategy, scoring and test day, beyond the syllabus.
Learn, then practise
Each lesson ends with three quick questions. For more, practice adapts to the topics you’re weakest on.
Open practice