Khan Academy
Khan Academy: Algebra: Conic Sections: Hyperbolas 2
An instructional video in which a specific hyperbola equation is given. The lesson shows students how to find the asymptotes and sketch a graph. Includes a link to practice problems above the video. [7:29]
Khan Academy
Khan Academy: Algebra: Conic Sections: Proof: Hyperbola Foci
A video lesson giving an algebraic proof of the formula for the foci of a hyperbola. [14:50]
Khan Academy
Khan Academy: Statistics: Contingency Table Chi Square Test
Video evaluates a contingency table about whether herbs effect a person contracting the flu by showing how to use a chi-square test. [17:37]
Khan Academy
Khan Academy: Algebra: Performing Arithmetic Calculations on Units of Volume
A step-by-step breakdown on how to solve an arithmetic calculation involving unit conversions. [5:23]
Khan Academy
Khan Academy: Statistics: T Statistic Confidence Interval
Video demonstrates using t-statistics to create a 95% confidence interval for a small sample size. [11:47]
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Khan Academy: Linear Algebra: Parametric Representations of Lines
Video shows how vector sets can be used to represent lines. Then shows how to use the vectors to write another vector set parallel to the first through a given point. Explains how the vector set is a general notation that can be used in...
Khan Academy
Khan Academy: Algebra: Factoring Trinomials by Grouping 1
Video demonstrates how to factor a polynomial by grouping. [3:46]
Khan Academy
Khan Academy: Proving That the Centroid Is 2 3rds Along the Median
This video tutorial [6:56] shows a proof that the centroid is located two-thrids of the way along each median. Proof is done algebraically.
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Khan Academy: Differential Equations: Undetermined Coefficients 3
Video shows an example of solving a second order linear nonhomogeneous differential equation involving a polynomial function using undetermined coefficients. [8:09]
Khan Academy
Khan Academy: Differential Equations: Exact Equations Intuition 1 (Proofy)
Video shows an informal proof of how the chain rule can be used for exact differential equations. [9:54]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Repeating Decimals to Fractions 2
This video explains how to convert a repeating decimal with more than one repeating digit to a fraction. Practice problems are available. [9:05]
Khan Academy
Khan Academy: Geometry: Language and Notation of Basic Geometry
Explains terms and notation of basic elements of geometry. [12:57]
Khan Academy
Khan Academy: Algebra: Multiplying and Dividing With Significant Figures
Video showing how to multiply and divide with significant figures. Includes examples of carpeting a floor and laying tile. [9:31]
Khan Academy
Khan Academy: Geometry: Triangle Angle Example 3
Explains how to solve for multiple missing angles in a diagram composed of multiple triangles using the triangle sum theorem and other angle relationships. This video also appears in the Geometry: Triangles strand. [5:42]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Converting Pounds to Ounces
This video explains how to convert between customary units of weight/mass. Practice problems are available. [1:34]
Khan Academy
Khan Academy: Algebra: Converting Pounds to Ounces
Step-by-step breakdown on how convert pounds to ounces. This video also appears in the strand Arithmetic and Pre-Algebra: Ratios and Proportions. [1:34]
Khan Academy
Khan Academy: Algebra: Ratio Problems With Basic Algebra
A step-by-step breakdown on how to solve ratio problems using algebra. Practice problems available. [5:12]
Khan Academy
Khan Academy: Algebra: Quadratic Formula 1
Demonstrates how to use the quadratic formula to solve a quadratic equation with a negative leading coefficient. [5:34]
Khan Academy
Khan Academy: Differential Equations: Introduction to Convolution
Video first defines convolution, then gives an example of the convolution of two trig functions. [18:59]
Khan Academy
Khan Academy: Algebra: Radical Expressions With Higher Roots
Video first finding the square root of an integer and then working towards finding larger roots of numbers by utilizing fractional exponents and exponent rules. Highest root is the 6th root. Includes an example with a variable. Video is...
Khan Academy
Khan Academy: Biology: Professional Apc and Mhc Ii Complexes
An explanation of the function of APC and MHC class II cells. [11:33]
Khan Academy
Khan Academy: Algebra: Multiplying Polynomials 2
Video demonstrates how to use polynomial multiplication to write a polynomial expression that represents the total area of a glass door. The problem requires multiplication of binomials. [4:48]
Khan Academy
Khan Academy: Statistics: Standard Error of the Mean
Video first briefly reviews the effect on the sampling distribution when the sample size increases then gives the formula for variance of the sample mean of the sampling distribution and formula for standard error of the mean. Uses the...
Khan Academy
Khan Academy: Differential Equations: Integrating Factors 1
Video shows how to find an integrating factor when the differential equation is not exact. [10:16]