Lessons

Intro to the GMAT

Introduction to the GMAT: Test Day

8:33

Introduction to the GMAT: The Quantitative Section

3:57

Introduction to the GMAT: The Verbal Section

3:41

AWA and IR

2:30

Computer Adaptive Testing

6:05

GMAT Scores

1:33

Pacing, Skipping, and Guessing

5:28

GMAT vs. GRE

3:47

Study Plans & Resources

3:43

Test Day

5:38

General Math Strategies

Intro to GMAT Math

3:57

Mental Math: GMAT Estimation

3:44

Mental Math: Dividing by 5

2:49

Mental Math: Doubling and Halving

6:08

Mental Math: Squaring Shortcuts

12:26

Number Sense

10:41

The Use and Abuse of Formulas

2:52

Learn from Your Mistakes

4:43

Intro to Data Sufficiency

Fundamentals of Data Sufficiency

16:37

DS Elimination Method

7:17

Two Kinds of DS Questions

9:08

Avoiding Common DS Mistakes

12:15

Introductory DS Strategies

2:48

Arithmetic and Fractions

Properties of Real Numbers

8:25

Positive and Negative Numbers - I

6:00

Mental Math, Addition, and Subtraction

5:24

Positive and Negative Numbers - II

7:44

Order of Operations

11:26

Intro to Decimals

11:28

Multiples of 10

9:45

More on Scientific Notation

8:36

Intro to Fractions

9:27

Conversions with Fractions and Decimals

8:14

Fraction Properties - I

13:34

Comparing Fractions I

11:33

Comparing Fractions II (Advanced)

12:20

Operations with Fractions

8:22

Fraction Properties - II

7:57

Mixed Numerals and Improper Fractions

10:30

Operations with Proportions

6:36

Word Problems with Fractions

3:37

Percents and Ratios

Intro to Percents

5:27

Working with Percents

3:35

Number Sense and Percents

4:23

Percent Increases and Decreases

10:35

Sequential Percent Changes

6:53

Simple and Compound Interest

13:59

Intro to Ratios

9:57

Combining Ratios

11:17

Ratios and Rates

6:15

Ratios and Percents

5:36

Integer Properties

Divisibility

10:12

Divisibility Rules

8:01

Multiples

8:29

Prime Numbers

6:28

Prime Factorization

8:17

Counting Factors of Large Numbers

12:15

Squares of Integers

5:30

Greatest Common Factor

5:57

Least Common Multiple

9:18

GCD LCM Formula

4:40

Even and Odd Integers

10:07

Testing Cases

6:02

Remainders

11:40

Integer Properties Strategies

6:33

Algebra, Equations, and Inequalities

Intro to Algebra

7:56

Simplifying Expressions

6:32

Multiplying Expressions

7:52

FOIL Method

8:50

Factoring - GCF

5:10

Factoring - Difference of Two Squares

12:01

Factoring - Quadratics

7:50

Factoring - Combined

4:25

Advanced Numerical Factoring

7:09

Factoring - Rational Expressions

5:11

Basic Equation Solving

6:19

Eliminating Fractions

9:11

Quadratic Equations

8:04

Two Equations, Two Unknowns - I

7:58

Two Equations, Two Unknowns - II

10:22

System - Number of Solutions

7:21

Three Equations with Three Unknowns

9:00

Absolute Value Equations

10:23

Function Notation

12:50

Strange Operators

7:46

Inequalities - I

13:55

Inequalities - II

11:07

Absolute Value Inequalities

9:35

Simplifying with Substitutions

5:26

Word Problems

Intro to Word Problems

1:37

Assigning Variables

9:14

Writing Equations

7:42

Number of Variables

8:23

Age Questions

5:02

Intro to Motion Questions

9:22

Average Speed

10:19

Multiple Traveler Questions

9:04

Shrinking and Expanding Gaps

12:00

Work Questions

9:34

Growth and Decay

4:01

Mixture Questions

10:00

Intro to Sets and Venn Diagrams

9:55

Double Matrix Method

9:23

Three Criteria Venn Diagrams

7:49

Intro to Sequences

7:48

Arithmetic Sequences

8:24

Recursive Sequences

10:23

Inclusive Counting

4:34

Sums of Sequences

7:32

Consecutive Integers

9:52

Backsolving

7:51

Intro to VICs

11:11

VICs - Algebraic Approach

9:53

VICs - Picking Numbers

18:41

Powers and Roots

Intro to Exponents

9:09

Exponential Growth

8:39

Laws of Exponents - I

12:46

Negative Exponents

11:02

Laws of Exponents - II

10:42

Units Digit Questions

7:30

Square Roots

14:53

Other Roots

11:52

Properties of Roots

4:05

Simplifying Roots

7:53

Operations with Roots

12:41

Equations with Square Roots

9:43

Fractional Exponents

7:13

Exponential Equations

6:56

Rationalizing

13:54

Working with Formulas

10:25

Geometry

Lines and Angles

16:06

Triangles - Part I

11:32

Assumptions and Estimation

7:31

Geometry Strategies - Part I

3:44

Triangles - Part II

14:54

Right Triangles

13:54

Similar Triangles

11:27

Special Right Triangles

11:59

Quadrilaterals

17:35

Area of Quadrilaterals

6:30

Polygons

7:30

Regular Polygons

7:08

Circles

6:03

Circle Properties

12:02

Circles, Arcs, and Sectors

6:39

Volume and Surface Area

12:15

Scale Factor and Scaling

8:21

Units of Measurement

8:05

Geometry Strategies - Part II

4:14

Coordinate Geometry

The Coordinate Plane

7:14

Graphing Lines

5:19

Vertical and Horizontal Lines

9:00

Slope

16:46

Intercepts

6:57

Slope-Intercept Form

7:55

Writing Equations of Lines

11:35

Distance Between Two Points

8:00

Reflections in the x-y Plane

9:39

Graphs of Quadratics

7:42

Statistics

Mean, Median, Mode

9:32

More on Mean and Median

4:34

Weighted Averages I

7:00

Weighted Averages II (Advanced)

8:31

Range and Standard Deviation

16:06

More on Standard Deviation

17:25

The Normal Distribution

11:06

Counting

Introduction to Counting

4:22

Fundamental Counting Principle

7:39

FCP with Restrictions

4:36

Factorial Notation

4:05

Counting What You Don't Want

9:39

Counting with Identical Items

6:18

Eliminating Repetition

7:33

Combinations

7:49

When to Use Combinations

9:14

Calculating Combinations

9:50

Permutations and Combinations

7:53

Case Counting

7:26

Counting Strategies

3:17

Probability

Intro to Probability

5:59

Complementary Events and Simple Rules

3:22

Mutually Exclusive Events

2:33

Probability of Event A OR Event B

3:50

Examples of the OR Rule

2:02

Independent Events

6:26

Examples of the AND Rule

4:44

Generalized AND Rule

3:52

Examples of Generalized AND Rule

7:05

Binomial Situation

8:40

The "At Least" Scenario

6:25

Analyzing Questions

8:47

Using Counting Techniques

5:14

Listing vs. Counting vs. Probability Rules

6:31

General Probability Strategies

4:39

Guessing Strategies

5:50

Advanced Data Sufficiency Strategies

Word Problems, Summarizing Information

11:52

Rephrasing the Question

9:58

Picking Numbers for DS

12:07

Strategies for Picking Numbers

16:33

DS Geometry Questions

11:35

DS Algebra Strategies

11:00

Tautological Statements

9:06

Common DS Mistakes

12:23

DS with Integer Constraints

7:25

Summary of DS Strategies

3:36

Sentence Correction - Introduction

Intro to Sentence Correction

6:44

Strategy - Using Splits

4:58

Strategy - False Splits & Low-Hanging Fruit

5:11

Strategy - Ideal vs. Best Answer

4:53

About the SC Module

4:26

Sentence Correction - Parts of Speech

Intro to Parts of Speech

5:37

The Roles of Nouns

3:54

Verbs

2:00

Adjectives and Adjectival Phrases

3:07

Adverbs and Adverbial Phrases

3:52

Conjunctions

4:58

Clauses

2:42

Subordinate Clauses

7:07

Substantive Clauses

4:45

Phrases

0:53

Prepositional Phrases

2:26

Appositive Phrases

2:51

Absolute Phrases

1:55

Removing Fluff from Sentences

3:08

Sentence Correction - Verb Form

Intro to Verbs

6:47

Transitive and Intransitive Verbs

2:47

Predicates

3:29

Grammar – Auxiliary Verbs

0:56

Grammar – Regular vs. Irregular Verbs

6:16

Verb Tense – Intro and Simple Tenses

1:11

Verb Tense – Progressive Tenses

3:57

Verb Tense – Perfect Tenses

9:08

Verb Tense – Perfect Progressive Tenses

4:37

Verb Mood – Subjunctive

4:27

Conditionals

8:03

Grammar – Infinitive Phrases

2:34

Grammar – Participial Phrases

4:51

Grammar – Perfect Participles

1:44

Tense of Participial Phrases

1:46

Grammar – Gerunds

3:23

Verb Voice

4:35

More on the Passive Voice

5:05

Sequence of Tenses

4:42

Sentence Correction - Agreement

Subject Verb Agreement - I

11:08

Subject Verb Agreement - II

5:36

Auxiliary Verbs and Subject Verb Agreement

5:03

Introduction to Pronouns

3:46

Indefinite Pronouns & Subject Verb Agreement

6:41

Pronoun Agreement - I

8:59

Pronoun Agreement - II

4:07

Sentence Correction - Grammatical Construction

Infinitive of Purpose

4:49

The Missing Verb Mistake

3:23

The Double Subject Mistake

3:06

Run-On Sentences

3:56

Sentence Correction - Parallelism

Intro to Parallelism

6:40

The Once Outside, Twice Inside Rule

9:28

More on Inside & Outside

11:00

Omitting Words in Parallelism

6:20

False Parallelism

4:03

Comparatives and Superlatives

6:32

Intro to Comparisons

7:29

Omitting Words in Comparisons

8:01

Comparisons: Like vs. As

6:40

Sentence Correction - Logical Predication

Adverbs & Adjectives

4:08

Intro to Modifiers

10:59

Relative Clause Modifiers

7:53

Vital Noun Modifiers

15:35

Exceptions to the Touch Rule

6:40

Word Order with Adverbs

6:31

Illogical Predication

5:49

Sentence Correction - Diction

Introduction to Diction

4:19

Lie vs. Lay

5:09

If vs. Whether

10:10

Countable vs. Uncountable

6:46

Rather than vs. Instead of

5:43

Because of vs. Due to

6:18

Diction: Like vs. Such As

2:16

Sentence Correction - Idiom

Idioms

3:24

Sentence Correction - Rhetorical Construction

Verbs and Active Language

3:14

Subject-Verb Proximity

6:18

Focus on a Topic

3:13

Avoid Redundancy

3:07

Concision I - Keep It Short

6:20

Concision II - Not Too Short

3:25

Sentence Correction - Summary

Meaning

6:21

Summary of SC Strategies

5:13

Sentence Correction Example #1

7:39

Sentence Correction Example #2

5:08

Reading Comprehension

Intro to Reading Comprehension

7:35

Approaching the Passage

6:23

Understanding Structure

9:37

Dissecting the Passage

12:43

Approaching the Question

5:00

Answer Choice Traps

13:27

Primary Purpose

9:36

Detail Questions

5:44

Inference Questions

11:17

Miscellaneous RC Tips

2:35

RC Example, Passage #1 Path Dependence

8:46

RC Example, Passage #1, Question #1

6:47

RC Example, Passage #1, Question #2

3:50

RC Example, Passage #2 Office Organization

8:07

RC Example, Passage #2, Question #1

4:01

RC Example, Passage #2, Question #2

5:51

Critical Reasoning

Intro to Critical Reasoning

5:01

Dissecting an Argument

5:09

Common Argument Types

3:20

General CR Strategy

5:23

Weakening the Argument

11:03

Strengthening the Argument

8:18

Assumption Questions

17:39

Trap Answers

13:21

Conclusion and Inference

7:16

Bold-faced Questions

13:28

Flawed Argument Questions

8:31

Paradox Questions

5:30

Evaluating the Conclusion

18:31

Miscellaneous CR Tips

3:49

Critical Reasoning Example #1

4:39

Critical Reasoning Example #2

6:11

AWA Basics

Intro to AWA

5:05

Argument Essay

Intro to Argument Essay

2:40

Logical Fallacies and the Argument Essay

7:45

Brainstorming for AWA

8:27

Writing the Argument Essay

9:07

Integrated Reasoning

Intro to Integrated Reasoning

15:28

The IR Calculator

20:23

General IR Strategies

6:18

Multi-Source Reasoning

8:39

Bradley Metalworks 1 (Practice)

6:51

Bradley Metalworks 2 (Practice)

2:38

Table Analysis

6:28

High School Exams (Practice)

7:28

Graphics Interpretation

7:52

Types of Graphics

9:42

Venn Diagrams

6:27

Scatterplots

11:38

More on Scatterplots

5:18

Three Companies (Practice)

3:55

Numerical Flowchart (Practice)

4:26

Intro to Two-Part Analysis

2:08

Verbal Two-Part Analysis

4:59

Math Two-Part Analysis

3:04

Highway to Hillsborough (Practice)

3:01

Algebraic Sequence (Practice)

1:56