Lessons
Math
General Math Strategies
- Math Strategies 7:09
- Dividing by 5 3:17
- Doubling and Halving 3:25
- Squaring Numbers Ending in 5 2:22
- Assumptions and Units of Measurement 4:42
Data Sufficiency
- Intro to Data Sufficiency 7:48
- DS Elimination Method 4:03
- Avoiding Common Mistakes - Part I 5:16
- DS Strategy - Part I 5:11
- Summarizing Information 6:25
- Rephrasing the Question 11:50
- Table Method 10:44
- Choosing Numbers 10:05
- DS Geometry Questions 7:51
- Useful Contradictions 3:45
- Avoiding Common Mistakes - Part II 4:52
- Common DS Myths - Part I 3:49
- Common DS Myths - Part II 8:37
- Choosing a Statement 5:11
- Guessing Strategically 6:04
- DS Strategy - Part II 3:07
Arithmetic and Fractions
- Properties of Real Numbers 5:42
- Positive and Negative Numbers - I 6:47
- Positive and Negative Numbers - II 9:14
- Intro to Decimals 7:55
- Powers of 10 3:20
- Intro to Fractions 8:37
- Conversions with Fractions and Decimals 6:21
- Fraction Properties - I 7:23
- Operations with Fractions 8:13
- Fraction Properties - II 5:29
- Word Problems with Fractions 3:58
Percents and Ratios
- Intro to Percents 7:21
- Working with Percents 8:07
- Finding x percent of y 5:31
- Percent Increases and Decreases 11:02
- Simple and Compound Interest 7:10
- Intro to Ratios 8:14
- Combining Ratios 4:51
- Ratios and Rates 7:32
Powers and Roots
- Intro to Exponents 9:23
- Exponential Growth 2:56
- Exponent Laws - I 7:07
- Negative Exponents 5:20
- Exponent Laws - II 6:08
- Units Digit Questions 3:28
- Square Roots 6:13
- Other Roots 5:37
- Properties of Roots 2:51
- Simplifying Roots 6:16
- Operations with Roots 3:53
- Fractional Exponents 3:32
- Equations with Exponents 4:36
- Fixing the Denominator 6:39
Algebra, Equations, and Inequalities
- Intro to Algebra 5:25
- Simplifying Expressions 5:44
- Expanding Expressions 7:21
- FOIL Method 3:55
- Factoring - GCF 5:48
- Factoring - Difference of Squares 4:19
- Factoring - Quadratics 6:39
- Factoring - Combined 3:41
- Factoring - Rational Expressions 6:51
- Basic Equation Solving 5:05
- Eliminating Fractions 7:38
- Quadratic Equations 8:42
- Two Equations with Two Unknowns 9:36
- Number of Solutions 3:37
- Three Equations with Three Unknowns 2:28
- Equations with Square Roots 8:20
- Equations and Powers 3:02
- Absolute Value Equations 3:46
- Function Notation 5:01
- Strange Operators 2:22
- Working with Formulas 4:26
- Inequalities - I 8:41
- Inequalities - II 5:54
- Inequalities and Absolute Value 6:17
- Quadratic Inequalities 5:21
- The Something Method 1:42
Coordinate Geometry
- The Coordinate Plane 3:39
- Distance Between Two Points 3:30
- Graphing Lines 8:12
- Vertical and Horizontal Lines 2:54
- Slope 5:04
- Intercepts 2:57
- Slope y-intercept Form 2:59
- Writing Equations of Lines 3:29
- Graphs of Quadratics 1:29
Word Problems
- Intro to Word Problems 2:55
- Testing the Answer Choices 5:32
- Assigning Variables 9:22
- Writing Equations 8:16
- Number of Variables 5:33
- Age Questions 5:51
- Intro to Motion Questions 9:38
- Average Speed 6:15
- Multiple DRT Questions 9:29
- Shrinking and Expanding Gaps 3:31
- Work Questions 8:51
- Double Matrix Method 4:33
- Three Criteria Venn Diagrams 6:15
- Intro to Sequences 4:41
- Recursive Definitions 5:18
- Sums of Sequences 4:47
- Growth Tables 1:59
- Mixture Questions 5:39
- Variables in Answer Choices 7:19
- Tips for Algebraic Approach 4:08
- Tips for Input-Output Approach 7:02
Geometry
- Lines and Angles 7:18
- Triangles - Part I 5:55
- Assumptions and Estimation 4:42
- Geometry Strategies - Part I 1:07
- Triangles - Part II 8:15
- Right Triangles 9:18
- Special Right Triangles 6:42
- Similar Triangles 4:28
- Quadrilaterals 5:50
- Polygons 3:17
- Circles 4:47
- Pieces of Pi 3:37
- Circle Properties 3:36
- Volume and Surface Area 6:44
- Units of Measurement 1:56
- Geometry Strategies - Part II 1:54
Integer Properties
- Divisibility 6:35
- Divisibility Rules 7:03
- Prime Numbers 1:49
- Prime Factorization 7:45
- Counting Divisors of Large Numbers 5:08
- Squares of Integers 4:01
- Divisor Rules 5:26
- Greatest Common Divisor 6:13
- Least Common Multiple 5:00
- GCD LCM Formula 2:07
- Even and Odd Integers 9:09
- Testing Cases 5:34
- Consecutive Integers 4:59
- Remainders 6:45
- Integer Properties Strategies 4:00
Statistics
- Mean, Median, Mode 5:27
- Mean Equals Median 2:22
- Weighted Averages 8:00
- Range and Standard Deviation 10:10
- More Standard Deviation 3:01
Counting
- Listing and Counting 3:53
- Fundamental Counting Principle 4:48
- FCP Example - Seating Children 2:58
- Counting Strategies - I 0:56
- Factorial Notation 3:22
- Restrictions - JKLMN Example 4:47
- MISSISSIPPI Rule 3:55
- Combinations 4:31
- When to use Combinations 7:34
- Calculating Combinations 4:46
- Counting Strategies - II 1:54
Probability
- Intro to Probability 6:53
- Complementary Events 6:02
- Mutually Exclusive Events 3:21
- Probability of Event A OR Event B 4:54
- Applying the OR Rule - Egg Inspections 2:17
- Probability of Event A AND Event B 3:41
- Independent Events 7:12
- Determining Independence 4:01
- Rewriting Questions 8:19
- Listing vs Counting vs Probability Rules 8:38
- General Probability Strategies 2:11
- Guessing Strategies 5:46
Verbal
Reading Comprehension
- Intro to Reading Comprehension 4:18
- Common RC Question Types 5:47
- General RC Strategies 4:06
- Engaging in RC Passages 10:58
- Summarizing Paragraphs 7:46
- Identifying the Main Idea 6:33
- Identifying the Correct Answer 6:44
- Answering Certain Question Types 9:14
- Passage Types 3:51
- Miscellaneous RC Tips 3:39
Sentence Correction - Introduction
Sentence Correction - Grammar Basics
- Parts of Speech - The Basics 9:12
- Parts of Speech - Subjects and Objects 2:56
- Parts of Speech - Hopefully and Other Adverbs 3:22
- Parts of Speech - Clauses 7:32
- Parts of Speech - Phrases 10:48
- Removing Fluff from Sentences 2:38
Sentence Correction - Verb Form
- Verb Tense - Intro and Simple Tense 3:15
- Verb Tense - Progressive Tense 3:53
- Verb Tense - Perfect Tense 11:04
- Conditionals 6:27
- Grammar - Linking Verbs 3:06
- Grammar - Gerunds 1:26
- Passive Sentences 3:50
Sentence Correction - Agreement
- Subject Verb Agreement - I 9:24
- Subject Verb Agreement - II 8:49
- Pronouns - I 10:20
- Pronouns - II 4:25
Sentence Correction - Grammatical Construction
Sentence Correction - Parallelism
- Parallelism - I 8:37
- Parallelism - II 3:37
- Parallelism - III 5:16
- Parallelism - IV 4:01
- Comparisons - I 5:09
- Comparisons - II 6:08
- Comparisons - III 8:09
Sentence Correction - Logical Predication
- Modifiers - I 10:42
- Modifiers - II 6:01
- Modifiers - III 7:05
- Modifiers - IV 6:46
- Exceptions to the Touch Rule 3:40
Sentence Correction - Diction
Sentence Correction - Idiom
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 2:38
Sentence Correction - Summary
Critical Reasoning
- Intro to Critical Reasoning 8:42
- Dissecting an Argument 11:16
- Common Argument Types 6:34
- General CR Strategy 3:35
- Weakening the Argument 6:22
- Strengthening the Argument 5:00
- Assumption Questions 8:26
- Conclusion and Inference 9:13
- Structure Questions 10:05
- Flawed Argument Questions 8:06
- Paradox Questions 6:37
- Evaluating the Conclusion 6:10
- Miscellaneous CR Tips 8:00
AWA
AWA Basics
Argument Essay
Integrated Reasoning
Integrated Reasoning
- Intro to Integrated Reasoning 7:21
- Onscreen Calculator 12:01
- Maximize Your IR Score 4:41
- General IR Strategy 1:01
- Graphics Interpretation 5:23
- Types of Graphics 4:09
- Venn Diagrams 3:23
- Scatterplots 6:35
- Science Majors (Practice) 1:45
- Cars and Salaries (Practice) 2:57
- Table Analysis 4:46
- Precious Metals (Practice) 4:48
- Two-part Analysis 7:48
- Relay Teams (Practice) 4:50
- Multi-source Reasoning 4:58
- Wind Chill 1 (Practice) 4:50
- Wind Chill 2 (Practice) 3:25