Steve Stein

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I am a math teacher and tutor from Brooklyn, NY.

Latest Videos

Hyperbola Foci (Focal Points), Ellipses vs. Hyperbolas (Conic Sections Precalculus Lesson 11)

Hyperbola Foci (Focal Points), Ellipses vs. Hyperbolas (Conic Sections Precalculus Lesson 11)

Steve Stein

1.6K views·5 years ago

Vertical Hyperbolas (and the Transverse Axis) (Precalculus Conic Sections Lesson 10)

Vertical Hyperbolas (and the Transverse Axis) (Precalculus Conic Sections Lesson 10)

Steve Stein

4.9K views·5 years ago

Horizontal Hyperbolas, Asymptotes (Precalculus Conic Sections Lesson 9)

Horizontal Hyperbolas, Asymptotes (Precalculus Conic Sections Lesson 9)

Steve Stein

650 views·5 years ago

The Concept of Eccentricity (Precalculus Conic Sections Lesson 8)

The Concept of Eccentricity (Precalculus Conic Sections Lesson 8)

Steve Stein

6.8K views·5 years ago

The Focal Points (Foci) of an Ellipse (Precalculus Conic Sections Lesson 7)

The Focal Points (Foci) of an Ellipse (Precalculus Conic Sections Lesson 7)

Steve Stein

5.4K views·5 years ago

Ellipses as Stretched Circles (Precalculus Conic Sections Lesson 6)

Ellipses as Stretched Circles (Precalculus Conic Sections Lesson 6)

Steve Stein

4.0K views·5 years ago

Parabola Form Conversion (Precalculus, Conic Sections, Lesson 5)

Parabola Form Conversion (Precalculus, Conic Sections, Lesson 5)

Steve Stein

1.4K views·5 years ago

Parabola Focal Width Latus Rectum and Intercepts (Precalculus Conic Sections Lesson 4)

Parabola Focal Width Latus Rectum and Intercepts (Precalculus Conic Sections Lesson 4)

Steve Stein

3.9K views·5 years ago

Shifted and Horizontal Parabolas (Precalculus, Conic Sections, Lesson 3)

Shifted and Horizontal Parabolas (Precalculus, Conic Sections, Lesson 3)

Steve Stein

1.1K views·5 years ago

Parabola FocusDirectrix Definition and Formula (Precalculus, Conic Sections, Lesson 2)

Parabola FocusDirectrix Definition and Formula (Precalculus, Conic Sections, Lesson 2)

Steve Stein

1.7K views·5 years ago

An Exploratory Introduction to the Conic Sections (Precalculus, Conic Sections, Lesson 1)

An Exploratory Introduction to the Conic Sections (Precalculus, Conic Sections, Lesson 1)

Steve Stein

1.2K views·5 years ago

Continuous and Uniformly Continuous Functions

Continuous and Uniformly Continuous Functions

Steve Stein

175.1K views·14 years ago

Why Angle-Side-Side Doesn't Work (And Sometimes Does!)

Why Angle-Side-Side Doesn't Work (And Sometimes Does!)

Steve Stein

11.1K views·14 years ago

Euclid's Division Lemma Proof

Euclid's Division Lemma Proof

Steve Stein

21.4K views·14 years ago

Archimedes' Proof that the Area of a Circle is πr^2

Archimedes' Proof that the Area of a Circle is πr^2

Steve Stein

20.5K views·14 years ago

Challenging But Accessible Math Problems Grouping Weights

Challenging But Accessible Math Problems Grouping Weights

Steve Stein

678 views·14 years ago

Deriving the Pythagorean Identities (Trigonometry)

Deriving the Pythagorean Identities (Trigonometry)

Steve Stein

15.4K views·14 years ago

Where is SineCosine Positive or Negative

Where is SineCosine Positive or Negative

Steve Stein

57.3K views·14 years ago

Trigonometric Functions and the Unit Circle - Example (Cosine of 120 Degrees)

Trigonometric Functions and the Unit Circle - Example (Cosine of 120 Degrees)

Steve Stein

29.2K views·14 years ago

Trigonometric Functions and the Unit Circle - Conceptual Introduction

Trigonometric Functions and the Unit Circle - Conceptual Introduction

Steve Stein

21.8K views·14 years ago

Cosine of the Difference of Two Angles (Proof)

Cosine of the Difference of Two Angles (Proof)

Steve Stein

9.3K views·14 years ago

The Law of Cosines - Proof

The Law of Cosines - Proof

Steve Stein

17.6K views·14 years ago

Combinations (vs. Permutations)

Combinations (vs. Permutations)

Steve Stein

117.5K views·14 years ago

Permutations

Permutations

Steve Stein

17.6K views·14 years ago

Absolute Value - Equations, Inequalities, Distance

Absolute Value - Equations, Inequalities, Distance

Steve Stein

348 views·14 years ago

Linear Equations - Point-Slope Form

Linear Equations - Point-Slope Form

Steve Stein

112 views·14 years ago

Factoring I - (Greatest) Common Factor

Factoring I - (Greatest) Common Factor

Steve Stein

203 views·14 years ago

Linear Equations - Slope-Intercept Form

Linear Equations - Slope-Intercept Form

Steve Stein

282 views·14 years ago

Linear Equations - y-Intercepts

Linear Equations - y-Intercepts

Steve Stein

131 views·14 years ago

Linear Equations - Slope

Linear Equations - Slope

Steve Stein

136 views·14 years ago

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