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Videos (Over 2 Million Educational Videos Available)

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Algebra 50 - Three Variable Systems in the...

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Thomas Jefferson - Author of The...

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Population Genetics

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Lesson Planet

#### Krista King Math: Pre-Calculus

A precalculus playlist of 29-videos demonstrates the processes and includes step-by-step explanations of functions. The collection includes inverse trig functions, polar coordinates, graphing polar curves, parametric curves, analytic...

Lesson Planet

#### Krista King Math: Derivatives

Everything calculus scholars need to know about derivatives can be found in this 31-resource playlist. The collection defines the derivative and includes derivative rules, chain rule, derivatives of trig functions, derivatives of...

Lesson Planet

#### Essence of Linear Algebra

The 15 videos in the Essence of Linear Algebra collection teach students how to understand the numerical operations of matrices as well as the geometric intuitions underlying them. The first video in the series details the rationale...

Lesson Planet

#### Significant Figures | Add, Subtract, Multiply and Divide Sig Figs

Selecting the proper measurement requires thought; for example, an odometer shouldn't be used to measure millimeters due to a lack of preciseness. An informative video from a Socratica playlist explains the importance of significant...

Lesson Planet

#### GeoGebra Graphing Calculator

So, exactly, what does it look like? The easily usable graphing calculator allows pupils to visualize the graph of equations and inequalities. The interactive supports any algebraic graph needed for high school mathematics and then some.

Lesson Planet

#### Linear Combinations, Span, and Basis Vectors | Essence of Linear Algebra, Chapter 2

What does it mean for two vectors to be linearly independent? The resource presents the basics of basis vectors and linear combinations. The third video in the 15-part series provides a definition of linear independence in terms of the...

Lesson Planet

#### Parent Functions Review Sheet

No laundry or cooking dinner here: these parent functions are all about math. Every graph you could think of from basic linear functions to the hyperbolic arccotangent function are included. With 40 parent functions, the worksheet can be...

Lesson Planet

#### Inequalities Assessment Review

Enjoy this pre-made worksheet that practices polynomial and rational inequality problems. The problems are all multiple choice, and answers are written in interval notation. The best part? A separate page with all the problems worked out...

Lesson Planet

#### The Rainbow Fish: Activities for Parents to Do with Children at Home

The Rainbow Fish, Marcus Pfister's award-winning story about the joys of sharing, is the inspiration for this resource loaded with fun. Suggestions for language and language arts, math, science, and social studies activities are included...

Lesson Planet

#### Derivative and Integral Rules

Your calculus learners will enjoy this handy reference sheet containing the most used derivative and integral formulas.

Lesson Planet

#### Physics Skill and Practice Worksheets

Stop wasting energy searching for physics resources, this comprehensive collection of worksheets has you covered. Starting with introductions to the scientific method, dimensional analysis, and graphing data, these skills practice...

Lesson Planet

#### Scientiﬁc Alphabet Chart - Get to Know Your Greek Alphabet

Greek alphabet letters are used to represent words or values in science and math. Keep a list on hand to refer to while working through calculus or physics problems.

Lesson Planet

#### Limit Examples (Part 1)

One example, find the limit as x approaches -1 of (2x+2)/(x+1), is solved by simplifying the expression and then is explored intuitively by looking at the left and right-hand limit. The second example of finding the limit as x approaches...

Lesson Planet

#### Introduction to Rate-of-Change Problems

Sal solves an example for finding the rate of change of the height of water in a cone at a specific point when it is being filled at a given rate. In this video, Sal reviews the volume of a cone and the chain rule and then, uses these to...

Lesson Planet

#### Maxima Minima Slope Intuition

Before solving any problems, Sal gives an overview of what happens to the slope, first derivative, and second derivative at local maxima and minima to give the viewer a more intuitive feel for these types of problems.

Lesson Planet

#### Optimization Example 4

Sal does another optimization example, this time, minimizing the total cost of an open rectangular box. In this problem, the volume can be defined in terms of a single variable and given a cost model, he builds a cost equation. He finds...

Lesson Planet

#### Graphing with Calculus

In a problem where you are not given the original function, but rather only three known points on the graph and a few additional pieces of information about when the first and second derivatives are positive or negative, Sal shows how...

Lesson Planet

#### Optimization with Calculus 3

Using what one learned about finding the minimum and maximum of functions, the optimization problem to find two numbers whose product is -16 and whose sum of squares is a minimum is solved. Sal starts by writing the equations and...

Lesson Planet

#### Proof: lim (sin x)/x

By looking the expression (sin x)/x that is not defined at the limit value of 0, Sal uses the squeeze theorem to show that the function can by bound between two other functions that are defined at limit value so the limit can indeed be...

Lesson Planet

#### Proof: d/dx(x^n)

Using the binomial theorem and definition of a limit, Sal shows a proof that the derivative of xn equals nxn-1.

Lesson Planet

#### Proof: d/dx(sqrt(x))

Using the definition of a limit, Sal proves the derivative of �x or x1/2 is equal to _ x-1/2.

Lesson Planet

#### Proof: d/dx(ln x)=1/x

Using the definition of a limit, various properties of logarithms, and a definition of e, Sal shows the proof of derivative of ln x = 1/x. Note: The video titled "Proof of Derivatives of Ln(x) and e^x,Ó has a clearer explanation of this...

Lesson Planet

#### Proof: d/dx(e^x) = e6x

Using the derivative of ln x, the chain rule, and the definition of a limit, Sal shows a proof that derivative of ex = ex. Note: The video titled "Proof of Derivatives of Ln(x) and e^x,Ó has a clearer explanation of this proof.

Lesson Planet

#### Introduction to Limits (HD)

Sal begins his explanation of limits with a few basic examples and takes a more intuitive point of view before looking at a formal mathematical definition in later videos. He starts by introducing the notation for limits and describes...