Deep Test Prep Online Library

Every Deep Test Prep SAT lesson, unlocked with one payment

The library holds 120 lessons that teach SAT Math, Reading, and Grammar the way a good tutor would. Each one starts from a solved SAT-style question, explains the skill that cracks it, and ends with practice questions that have full explanations.

What the library covers

SAT Reading39 lessons

Main ideas, evidence, inference, structure, and vocabulary in context.

Argument & Critical Reading
Comprehension
Data & Quantitative Literacy
Evidence
Inference
Rhetorical Analysis
Synthesis
Text Structure
Vocabulary

SAT Grammar24 lessons

Punctuation, agreement, modifiers, verbs, transitions, and sentence structure.

Agreement
Modifiers
Pronouns
Punctuation
Sentence Structure
Transitions
Verbs

SAT Math57 lessons

Algebra through trigonometry, plus a full course in using Desmos on test day.

Algebra Foundations
Linear Relationships
Advanced Algebra
Functions
Quadratics
Problem Solving
Data Analysis
Desmos Mastery
Geometry
Trigonometry

Try 15 lessons free before you buy

These lessons are open to everyone, with no account needed. They show exactly how the rest of the library teaches.

Claim IdentificationSAT Reading · Argument & Critical Reading
Central IdeaSAT Reading · Comprehension
Data InterpretationSAT Reading · Data & Quantitative Literacy
Best Evidence QuantitativeSAT Reading · Evidence
Subject VerbSAT Grammar · Agreement
Dangling ModifiersSAT Grammar · Modifiers
CaseSAT Grammar · Pronouns
ApostrophesSAT Grammar · Punctuation
ColonsSAT Grammar · Punctuation
Comma SplicesSAT Grammar · Sentence Structure
Linear EquationsSAT Math · Algebra Foundations
Graphing Linear EquationsSAT Math · Linear Relationships
Desmos BasicsSAT Math · Desmos Mastery
Finding IntersectionsSAT Math · Desmos Mastery
Graphing SAT Equations and Functions in DesmosSAT Math · Desmos Mastery

Questions about buying

How do I get into the library after I pay?: Your account is created from the email address you use at checkout, and a sign-in link arrives in that inbox within a minute or two. You can also sign in with Google if your Google account uses the same address.
Does my progress save?: Yes. Lessons you finish and practice questions you solve save to your account, so you can switch between a laptop and a phone and pick up where you left off.
Is this a subscription?: No. You pay $97 once, and there is nothing to cancel.
Can I get a refund?: No. All sales are final, so please try the free lessons first to see whether the library fits the way you study.

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What the library covers

SAT Reading39 lessons

Main ideas, evidence, inference, structure, and vocabulary in context.

Argument & Critical Reading
Comprehension
Data & Quantitative Literacy
Evidence
Inference
Rhetorical Analysis
Synthesis
Text Structure
Vocabulary

SAT Grammar24 lessons

Punctuation, agreement, modifiers, verbs, transitions, and sentence structure.

Agreement
Modifiers
Pronouns
Punctuation
Sentence Structure
Transitions
Verbs

SAT Math57 lessons

Algebra through trigonometry, plus a full course in using Desmos on test day.

Algebra Foundations
Linear Relationships
Advanced Algebra
Functions
Quadratics
Problem Solving
Data Analysis
Desmos Mastery
Geometry
Trigonometry

Try 15 lessons free before you buy

These lessons are open to everyone, with no account needed. They show exactly how the rest of the library teaches.

Claim IdentificationSAT Reading · Argument & Critical Reading

Central IdeaSAT Reading · Comprehension

Data InterpretationSAT Reading · Data & Quantitative Literacy

Best Evidence QuantitativeSAT Reading · Evidence

Subject VerbSAT Grammar · Agreement

Dangling ModifiersSAT Grammar · Modifiers

CaseSAT Grammar · Pronouns

ApostrophesSAT Grammar · Punctuation

ColonsSAT Grammar · Punctuation

Comma SplicesSAT Grammar · Sentence Structure

Linear EquationsSAT Math · Algebra Foundations

Graphing Linear EquationsSAT Math · Linear Relationships

Desmos BasicsSAT Math · Desmos Mastery

Finding IntersectionsSAT Math · Desmos Mastery

Graphing SAT Equations and Functions in DesmosSAT Math · Desmos Mastery

Questions about buying

How do I get into the library after I pay?

Your account is created from the email address you use at checkout, and a sign-in link arrives in that inbox within a minute or two. You can also sign in with Google if your Google account uses the same address.

Does my progress save?

Yes. Lessons you finish and practice questions you solve save to your account, so you can switch between a laptop and a phone and pick up where you left off.

Is this a subscription?

No. You pay $97 once, and there is nothing to cancel.

Can I get a refund?

No. All sales are final, so please try the free lessons first to see whether the library fits the way you study.