Elli S

Hello!  This bundle includes all my student-friendly videos for my Radicals, Exponents, Complex Numbers, Factoring Unit in Algebra 2:Radicals and ExponentsOperations with RadicalsRationalizing the DenominatorRational Exponents 1Rational Exponents 2Complex Number Introduction, Powers & OperationsGraphing Complex Points & Complex Roots of Quadratics (PreCalculus content)Radical EquationsExtensions to Difference of SquaresSum and Difference of CubesFactoring by Looking at StructureFocus, Directrix

Hello!  This bundle includes all my student-friendly videos for my Statistics Unit in Algebra 2:  Measures of Center and Solving for themThe Normal DistributionVariabilityStudies and ExperimentsPopulations, Samples, Proportions, MeansConfidence IntervalsPlease see the individual listing for each video to see more information including specific topics covered for each video.    I created all these videos for students to learn  independently.  They are tools you can use to teach, preview, retea

Topic of this video:  Graphing Complex Numbers & Roots  Unit: Radicals, Exponents, Complex Numbers, Factoring Course: Algebra 2 Video Duration: 17 minutes and 20 seconds This video: Introduces the complex plane and shows students how to graph a complex pointShows and explains an example of adding two complex numbers represented visually as vectors on the complex plane to obtain a complex sumShows an example and explains a method of how to obtain complex roots from a graph of a quadratic on the

Topic of this video:  Complex Numbers Unit: Radicals, Exponents, Complex Numbers, Factoring Course: Algebra 2 Video Duration: 16 minutes and 32 seconds This video: Explains the definition and concept of Complex Numbers, introduces the Complex Number family and explains the a + bi notationExplains the powers of i and why the powers are cyclical Goes over two examples of simplifying powers of iGoes over an example of how to simplify radicals with negatives in the radicandGoes over an example of ad

Topic of this video:  Rationalizing the Denominator Unit: Radicals, Exponents, Complex Numbers, Factoring Course: Algebra 2 Video Duration:  10 minutes and 55 seconds This video: Explains examples of rationalizing one term irrational denominators and binomial irrational denominatorsGives the definition and explains the concept of a conjugate pairGoes over an example of rationalizing a cubic rootHello!  I created this video for students to learn this topic independently.  This video is a tool you

Topic of this video:  Measures of Center Unit: Statistics Course: Algebra 2 Video Duration:  18 minutes and 36 seconds This video includes: Definition and explanation of median and mean, including symbolsDiscusses where in the distribution the mean and median are located in a symmetric and skewed distributionExample of an average problem with missing data using test scores.  Given the average of the first six of tests, what needs to be the average of the next three tests to achieve a certain ove

Hello!  This bundle includes all my student-friendly videos for my Probability Unit in Algebra 2:  Basic Probability Rules  Two-way tables General Addition Rule and Venn Diagrams Independence and Conditional ProbabilityPlease see the individual listing for each video to see more information including specific topics covered for each video.    I created all these videos for students to learn  independently.  They are tools you can use to teach, preview, reteach, or just have as an additional r

Topic of this video:  Rational Exponents 1 Unit: Radicals, Exponents, Complex Numbers, Factoring Course: Algebra 2 Video Duration:  7 minutes and 58 seconds This video: Goes over how to convert an expression with a rational exponent to radical formShows and explains three examples in converting a number with a rational exponent to radical form, then simplifies that expressionExplains an example of converting an expression with a decimal exponent to a radical expressionExplains an example of conv

Topic of this video:  Radicals and Exponents Unit: Radicals, Exponents, Complex Numbers, Factoring Course: Algebra 2 Video Duration:  14 minutes and 55 seconds This video: Explains examples of simplifying radicals.  Radicands include variables to higher powers and non-perfect square numbers.  Example of simplifying a radical with a factorable expression in the radicand.Shows examples of problems with an index of 3 and n, with variables to the n and n + 1 powerExplains examples of simplifying exp

Topic of this video: Focus, Directrix of Parabolas Unit: Radicals, Exponents, Complex Numbers, Factoring Course: Algebra 2 Video Duration: 18 minutes and 34 seconds This video: Goes over the conical form of a quadratic equation which reveals its vertex, and where the focus and directrix are easy to findExplains what the focus and directrix of a parabola are and that a parabola is the locus of point equidistant from the focus and the directrixGoes over and explains an example where the equation i

Topic of this video: Factoring by Looking at Structure Unit: Radicals, Exponents, Complex Numbers, Factoring Course: Algebra 2 Video Duration: 22 minutes and 33 seconds This video: Goes over two ways of factoring a quadratic when a >1.  The first way is more traditional by splitting the middle term and factoring out the GCF.  The second way encourages students to look deeper into the problem and notice that if we substitute an expression for a single variable, then the expression is quite eas

Topic of this video: Sum and Difference of Cubes Unit: Radicals, Exponents, Complex Numbers, Factoring Course: Algebra 2 Video Duration: 07 minutes and 57 seconds This video: Gives and explains the formulas for the sum and difference of cubesShows and explains how to factor the difference of two cubesGoes over an example needing to factor out a GCF, then factor the sum of cubesHello!  I created this video for students to learn this topic independently.  This video is a tool you can use to teach,

Topic of this video: Extensions to the Difference of Squares Unit: Radicals, Exponents, Complex Numbers, Factoring Course: Algebra 2 Video Duration: 06 minutes and 49 seconds This video: Gives and explains the formula for the difference of squaresFactors a simple Algebra 1 level difference of squares expression and uses that thought process to factor two quartic degree difference of squares problemIncludes an example with coefficients not equal to 1.Hello!  I created this video for students to l

Topic of this video: Radical Equations Unit: Radicals, Exponents, Complex Numbers, Factoring Course: Algebra 2 Video Duration: 12 minutes and 02 seconds This video: Goes over and explains an example of a radical equation resulting in a linear equation with one solution, checks solutionGives the definition and explains the concept of an extraneous solutionGoes over and explains an example of a radical equation resulting in a quadratic equation with one solution, checks solution and one extraneous

Topic of this video:  Operations with Radicals Unit: Radicals, Exponents, Complex Numbers, Factoring Course: Algebra 2 Video Duration:  11 minutes and 21 seconds This video: Explains examples of operations (adding, subtracting, multiplying and dividing) of radicals Explains the concept of like radicals and why they can be combined and why unlike radicals cannot be combinedShows and explains an example of multiplying two binomials containing radicalsShows and explains an example of adding cube ro

Topic of this video:  Two-way tables Unit: Probability Course: Algebra 2 Video Duration:  12 minutes and 59 seconds This video includes: Explanation of what a Two-way table is, its characteristics and what they are used forExample of a Two-way tableExample of problems using that two-way table:  finding a probability of an event, and finding the probability of an AND statement using the table.  Both of these calculations use marginal totals.Hello!  I created this video for students to learn this

Topic of this video:  Rational Exponents 2 Unit: Radicals, Exponents, Complex Numbers, Factoring Course: Algebra 2 Video Duration: 11 minutes and 28 seconds This video: Goes over and explains how to simplify expressions with rationals by converting each part to an expressions with rational exponents  and working within the rules of exponentsShows two different ways to simplify an expression with a rational exponentGoes over and explains more difficult problems than my “Rational Exponents 1” vide

Topic of this video:  Conditional Probability and Independence Unit: Probability Course: Algebra 2 Video Duration:  20 minutes and 02 seconds This video includes: Definition and explanation of conditional probability with symbolsExamples of finding conditional probability from a two-way tableDefinition and explanation of independence, with symbolsHow to prove two events independentHow to prove two events are dependentAn example of how to show two events are independent given their probabilities

Topic of this video:  Confidence Intervals Unit: Statistics Course: Algebra 2 Video Duration:  11 minutes and 06 seconds This video: Explains the concept of a confidence Interval, point estimator, and margin or error, and gives a visualShows and explains that the Margin of Error is the same as the distance of the point estimator to the endpoint of the Confidence IntervalDefines a 95% confidence interval as the mean or proportion plus or minus two standard deviations from the mean   (Note- this i

Topic of this video:  Populations, Samples, Proportions, Means Unit: Statistics Course: Algebra 2 Video Duration:  09 minutes and 59 seconds This video: Gives the definition and explains about populations and a samplesGoes over examples of identifying a population or a sampleGives the definition and explains about statistical inferenceGives the definition and explains about proportions and meansHello!  I created this video for students to learn this topic independently.  This video is a tool you