Lessons

Intro to SAT

What's on the SAT

4:08

Scoring on the SAT

4:10

Guessing and Elimination

3:58

Learning from Mistakes

6:24

Test Day

5:18

中欧减压iques

10:45

Should I take the ACT or the SAT?

10:49

General Math Strategies

Intro to SAT Math

3:28

Gridded-Response Questions

4:57

Calculator Use & Mental Math

3:04

Why Mental Math?

2:37

Mental Math: Estimation

7:57
• Quiz: Mental Math: Estimation5 questions

Mental Math: Dividing by 5

2:49
• Quiz: Mental Math: Dividing by 55 questions

Mental Math: Doubling & Halving

6:26
• Quiz: Mental Math: Doubling & Hal...5 questions

Number Sense

9:42
• Quiz: Number Sense5 questions

The Use and Abuse of Formulas

2:52

Learn from Your Mistakes

4:43

Math Strategy: Picking Numbers

14:49

Math Strategy: Backsolving

11:50
• Quiz: Math Strategy: Backsolving5 questions

SAT-specific Math Strategies

Follow Through on Question

4:03
• Quiz: Follow Through on Question5 questions

Mapping out the Plane

9:11
• Quiz: Mapping out the Plane5 questions

Play with Numbers

5:53
• Quiz: Play with Numbers5 questions

Watch out for Positives and Negatives in Quadratics

1:26

Watch out for Phantom Roots

3:02
• Quiz: Watch out for Phantom Roots5 questions

Plugging in numbers with Algebraic Equations

7:01
• Quiz: Plugging in numbers with Al...5 questions

Plugging in numbers on Word Problems

5:06
• Quiz: Plugging in numbers on Word...5 questions

Arithmetic and Fractions

Properties of Real Numbers

8:25

Positive and Negative Numbers - I

6:00
• Quiz: Positive and Negative Numbe...5 questions

Mental Math, Addition, and Subtraction

6:19

Positive and Negative Numbers - II

7:44

Order of Operations

11:26
• Quiz: Order of Operations5 questions

Intro to Decimals

11:28

Rounding

6:23
• Quiz: Rounding5 questions

Multiples of 10

9:45

More on Scientific Notation

8:36
• Quiz: More on Scientific Notation5 questions

Conversions with Fractions, Decimals

8:14

Fraction Properties - I

13:35
• Quiz: Fraction Properties - I5 questions

Operations with Fractions

8:23

Fraction Properties - II

7:57
• Quiz: Fraction Properties - II5 questions

Operations with Proportions

6:36

Word Problems with Fractions

3:37
• Quiz: Word Problems with Fractions5 questions

Percents and Ratios

Intro to Percents

5:27

Working with Percents

3:35
• Quiz: Working with Percents5 questions

Number Sense and Percents

4:23

Percent Increases and Decreases

10:35
• Quiz: Percent Increases and Decre...5 questions

Sequential Percent Changes

6:53

Simple and Compound Interest

13:59
• Quiz: Simple and Compound Interest5 questions

Intro to Ratios

9:57

Combining Ratios

10:49

Ratios and Rates

6:15
• Quiz: Ratios and Rates5 questions

Algebra, Equations, and Inequalities

Intro to Algebra

7:56

Simplifying Expressions

6:32
• Quiz: Simplifying Expressions5 questions

Multiplying Expressions

7:52

FOIL Method

8:50
• Quiz: FOIL Method5 questions

Factoring - GCF

5:10

Factoring - Difference of Two Squares

12:01

Factoring - Quadratics

7:50
• Quiz: Factoring - Quadratics5 questions

Factoring - Combined

4:25

Factoring - Rational Expressions

5:11
• Quiz: Factoring - Rational Expres...5 questions

Basic Equation Solving

6:19

Eliminating Fractions

8:56
• Quiz: Eliminating Fractions5 questions

Quadratic Equations

8:04
• Quiz: Quadratic Equations5 questions

Two Equations, Two Unknowns - I

7:58

Two Equations, Two Unknowns - II

10:22

Two Equations, Number of Solutions

7:21
• Quiz: Two Equations, Number of So...5 questions

Absolute Value Equations

10:23

Function Notation

12:50
• Quiz: Function Notation5 questions

Inequalities I

13:55

Inequalities II

11:07
• Quiz: Inequalities II5 questions

Word Problems

Intro to Word Problems

1:37

Assigning Variables

6:24
• Quiz: Assigning Variables5 questions

Writing Equations

7:42

Number of Variables

8:23
• Quiz: Number of Variables5 questions

Age Questions

5:02

Growth and Decay

4:01
• Quiz: Growth and Decay5 questions

Intro to Motion Questions

9:22

Average Speed

10:19
• Quiz: Average Speed5 questions

Multiple Traveler Questions

5:45

Shrinking and Expanding Gaps

9:20

Work Problems

9:34
• Quiz: Work Problems5 questions

Intro to Set and Venn Diagrams

9:36

Intro to Sequences

7:48
• Quiz: Intro to Sequences5 questions

Arithmetic Sequences

8:24

Geometric Sequences

6:04
• Quiz: Geometric Sequences5 questions

包括计数

4:34

Sums of Sequences

5:44
• Quiz: Sums of Sequences5 questions

Backsolving

7:51
• Quiz: Backsolving5 questions

Powers and Roots

Intro to Exponents

9:10

Exponential Growth

8:39
• Quiz: Exponential Growth5 questions

指数定律——我

12:47

Negative Exponents

11:02

指数定律——我I

10:42
• Quiz: Laws of Exponents - II5 questions

Square Roots

14:53

Other Roots

11:52

Properties of Roots

4:05
• Quiz: Properties of Roots5 questions

Simplifying Roots

8:31

Operations with Roots

12:41

Equations with Square Roots

9:43
• Quiz: Equations with Square Roots5 questions

Fractional Exponents

7:13

Exponential Equations

6:56
• Quiz: Exponential Equations5 questions

Rationalizing

13:54

Working with Formulas

10:25
• Quiz: Working with Formulas5 questions

Geometry

Lines and Angles

16:06

Triangles - Part I

11:32
• Quiz: Triangles - Part I5 questions

Geometry Strategies - Part I

3:44

Triangles - Part II

17:37

Right Triangles

13:54
• Quiz: Right Triangles5 questions

Similar Triangles

11:27

Special Right Triangles

15:51
• Quiz: Special Right Triangles5 questions

Quadrilaterals

17:35

Area of Quadrilaterals

6:33
• Quiz: Area of Quadrilaterals5 questions

Polygons

7:30

Regular Polygons

7:08
• Quiz: Regular Polygons5 questions

Circles

6:03

Circle Properties

12:21
• Quiz: Circle Properties5 questions

Circles, Arcs, and Sectors

8:08

Volume and Surface Area

12:42
• Quiz: Volume and Surface Area5 questions

Scale Factor & Scaling

8:21

Units of Measurement

8:05

Geometry Strategies - Part II

4:14
• Quiz: Geometry Strategies - Part II5 questions

Coordinate Geometry

The Coordinate Plane

7:14

Graphing Lines

5:19

Vertical and Horizontal Lines

9:04
• Quiz: Vertical and Horizontal Lines5 questions

Slope

12:39

Intercepts

5:46
• Quiz: Intercepts5 questions

Slope-Intercept Form

8:18

Writing Equations of Lines

11:35
• Quiz: Writing Equations of Lines5 questions

两个点之间的距离

8:00
• Quiz: Distance Between Two Points5 questions

Reflections in the x-y Plane

9:39
• Quiz: Reflections in the x-y Plane5 questions

Graphs of Quadratics I

7:24

Graphs of Quadratics II

10:59
• Quiz: Graphs of Quadratics II5 questions

Statistics

Mean, Median, Mode

9:32

More on Mean and Median

4:34
• Quiz: More on Mean and Median5 questions

Weighted Averages

7:00

Range and Standard Deviation

16:06
• Quiz: Range and Standard Deviation5 questions

Data Analysis

Intro to SAT Data Analysis

2:42

Types of Graphs

3:11

Timeplots for Motion

3:00

Other Timeplots

4:47
• Quiz: Other Timeplots5 questions

Histograms

4:25

Tables of Values

6:13

护照to Advanced Math: Trigonometry

Intro to SOHCAHTOA

13:17

SOHCAHTOA and Special Triangles

6:07
• Quiz: SOHCAHTOA and Special Trian...5 questions

Fundamental Trig Identities

8:26

Intro to Unit Circle Trigonometry I

13:47
• Quiz: Intro to Unit Circle Trigon...5 questions

Intro to Unit Circle Trigonometry II

13:49

Degrees and Radians

10:13

More on the Unit Circle

9:45
• Quiz: More on the Unit Circle5 questions

Trigonometric Functions

15:52

Inverse Trig Functions

4:27

Advanced Trig Formulas

8:01

护照to Advanced Math: Extra Topics

Intro to Complex Numbers

12:54

Arithmetic with Complex Numbers

9:34
• Quiz: Arithmetic with Complex Num...5 questions

Factor Theorem

5:13

Graphs of Polynomials

4:43

Transformations of Functions

16:02
• Quiz: Transformations of Functions5 questions

Formal Logic

9:35

Quadratic Formula

7:59

Functions with Discontinuities

6:49
• Quiz: Functions with Discontinuities5 questions

Introduction

SAT Reading Section Intro

6:06

Strategies and Fundamentals

Active Reading

6:43

The Passage - Part I

11:22

The Passage - Part II

6:24

The Graph

6:15

Specific Reading Strategies

Evidence-Based Reasoning Questions

3:39

Choosing between Two Answers

3:42

Elimination Trick

3:19

How to Approach the Question, Part 1

4:42

How to Approach the Question, Part 2

5:15

Question Types

Wrong Answers - Part I

15:12

Wrong Answers - Part II

8:54

Line reference

4:46
• Quiz: Line reference5 questions

Key Words

2:17
• Quiz: Key Words5 questions

Inference

6:43
• Quiz: Inference5 questions

Comparison Passages

3:06
• Quiz: Comparison Passages5 questions

Vocabulary in Context

5:30
• Quiz: Vocabulary in Context5 questions

Main Purpose Questions

6:35
• Quiz: Main Purpose Questions5 questions

Introduction

SAT Writing Section Intro

5:58

Specific Writing Strategies

Approaching and navigating passage

8:54

Elimination tactics

4:27

How to Approach the Question

4:17

Sentence Structure

Intro to Sentence Structure

7:50

Clauses

10:29

Coordinating and Subordinating

7:19

Important Set of Adverbs

6:03

Conjunction and Clause Quiz

6:09

Parallelism

7:43

Usage

Pronoun Cases

8:03

Pronoun Agreement

7:07

Subject Verb Agreement

7:03

Word Choice

9:05

False Comparison

6:57

Punctuation

The Comma

7:57

The Semicolon

5:01

The Dash and The Colon

5:17

Punctuation - Putting it All Together

7:45

Development

Attacking The Passage

6:40

Adding Sentences

4:31

Deleting Sentences

4:19

Effective Language Use

Redundant Meanings

4:24

Ambiguous Pronouns

4:28

Concision and Wordiness

3:37

Tone

4:04

Question Types

Transitions

10:37

Combining Sentences

6:29

Sentence Ordering

8:51

Essay

Introduction

4:49

Should I Take the Essay

3:04

How is the Essay Scored

3:46

Rhetorical Devices

7:04

What to Do Before Writing the Essay

6:09

The Importance of Style

12:37