Math You Need to Know Before High School
Video Lectures
Displaying all 107 video lectures.
Lecture 1![]() Play Video |
Comparison Symbols In this video I will explain and give examples of comparison symbols in mathematics. Next video in this series can be seen at: https://youtu.be/Ua7aXKjYOEM |
Lecture 2![]() Play Video |
Operation Symbols In this video I will give examples and explain the language of operation symbols. Next video in this series can be seen at: https://youtu.be/MKZAvDJhhi8 |
Lecture 3![]() Play Video |
Order of Operations In this video I will explain and give examples of the order of operations of 1. parentheses, 2. exponents, 3. multiplication and division, and 4. addition and subtraction. Next video in this series can be seen at: https://youtu.be/1pl9oMfHQI0 |
Lecture 4![]() Play Video |
The Number Line In this video I will explain the number line and how to find the locations of numbers on the number line. Next video in this series can be seen at: https://youtu.be/H6gqSY2jUQg |
Lecture 5![]() Play Video |
Absolute Values and Opposites In this video I will explain and work examples of absolute values and opposites. Next video in this series can be seen at: https://youtu.be/Eb72wb4dYI8 |
Lecture 6![]() Play Video |
Equivalent Fractions In this video I will find equivalent fractions and equivalent reduced fractions. Next video in this series can be seen at: https://youtu.be/otvy5ZVorO8 |
Lecture 7![]() Play Video |
Adding and Subtracting Negative Numbers In this video I will explain and give example of adding and subtracting negative numbers. Next video in this series can be seen at: https://youtu.be/r49G5Z8HIVM |
Lecture 8![]() Play Video |
Properties of Real Numbers 1 In this video I will explain commutative property of addition and multiplication, associative property of addition, and the associative property of addition. Next video in this series can be seen at: https://youtu.be/NRS9vbWmGLA |
Lecture 9![]() Play Video |
Properties of Real Numbers 2 In this video I will explain the distributive property, identity property of addition and multiplication, and inverse property of addition and multiplication. Next video in this series can be seen at: https://youtu.be/VOKXi-_EwIo |
Lecture 10![]() Play Video |
Multiplying (+) and (-) Real Numbers In this video I will explain and show how to multiply negative and positive real numbers. Next video in this series can be seen at: https://youtu.be/BtMdnSI_dAc |
Lecture 11![]() Play Video |
Distributive Property: Example In this video I will explain and show how to solve distributive property example problem. Next video in this series can be seen at: https://youtu.be/xZL-8tdhaQE |
Lecture 12![]() Play Video |
How to Multiply Fractions In this video I will explain and show how to multiply fractions. Next video in this series can be seen at: https://youtu.be/O7QfNzE7DeA |
Lecture 13![]() Play Video |
How to Divide Fractions In this video I will explain and show how to divide fractions. Next video in this series can be seen at: https://youtu.be/jSjGZGCLek4 |
Lecture 14![]() Play Video |
How to Simplify Fractions In this video I will explain and show how to simply fractions. Next video in this series can be seen at: https://youtu.be/MZYUoFPr3YY |
Lecture 15![]() Play Video |
What Are Number Sets? In this video I will explain what are counting numbers, whole numbers, integers, rational and irrational numbers, real numbers, and imaginary numbers. Next video in this series can be seen at: https://youtu.be/frXUlpNq4WU |
Lecture 16![]() Play Video |
Number Sets: Examples In this video I will how how to determine if numbers are counting numbers, whole numbers, integers, rational and irrational numbers, real numbers, and imaginary numbers. Next video in this series can be seen at: https://youtu.be/36Bb92sbNNg |
Lecture 17![]() Play Video |
What Are Prime Numbers? In this video I will how how to determine if numbers are prime numbers. Next video in this series can be seen at: https://youtu.be/ktUueQ8bcWI |
Lecture 18![]() Play Video |
How to Factor Numbers In this video I will show how to factor numbers to its lowest factors. Next video in this series can be seen at: https://youtu.be/5K7Y_bKwA-I |
Lecture 19![]() Play Video |
How to Reduce Fractions In this video I will show how to reduce factions to its lowest terms. Next video in this series can be seen at: https://youtu.be/pOjt6DFaPTs |
Lecture 20![]() Play Video |
How to Find the L.C.D. 1 In this video I will show how to find the L.C.D. (Lowest Common Denominator) where the denominators prime numbers. Next video in this series can be seen at: https://youtu.be/UOHei6kO8eQ |
Lecture 21![]() Play Video |
How to Find the L.C.D. 2 In this video I will show how to find the L.C.D. (Lowest Common Denominator) where the largest denominator is a multiple of the others. Next video in this series can be seen at: https://youtu.be/onIQ7USRAOg |
Lecture 22![]() Play Video |
How to Find the L.C.D. 3 In this video I will show how to find the L.C.D. (Lowest Common Denominator) where the denominators have common factors. Next video in this series can be seen at: https://youtu.be/3Zq4s7kpU9o |
Lecture 23![]() Play Video |
Adding Fractions Using L.C.D. 1 In this video I will add fractions where the denominators prime numbers. Next video in this series can be seen at: https://youtu.be/MPnPfldqPeQ |
Lecture 24![]() Play Video |
Adding Fractions Using L.C.D. 2 In this video I will add fractions where the largest denominator is a multiple of the others. Next video in this series can be seen at: https://youtu.be/5P7p6nOLJvA |
Lecture 25![]() Play Video |
Adding Fractions Using L.C.D. 3 In this video I will add fractions where the denominators have common factors. Next video in this series can be seen at: https://youtu.be/QMW2sUEzFnQ |
Lecture 26![]() Play Video |
What is an Algebraic Expression? In this video I will explain and give examples of what are expressions. Next video in this series can be seen at: https://youtu.be/Ez5hN-DuoyE |
Lecture 27![]() Play Video |
How to Simplify Algebraic Expressions In this video I will simplify math expressions by combining like terms. Next video in this series can be seen at: https://youtu.be/zhw2v_QaNu4 |
Lecture 28![]() Play Video |
How to Evaluate Algebraic Expressions 1 In this video I will evaluate math expressions when a value is assigned to the unknown (i.e. x=5). Next video in this series can be seen at: https://youtu.be/uu3RUzlJGkg |
Lecture 29![]() Play Video |
How to Evaluate Algebraic Expressions 2 In this video I will evaluate math expressions when 2 values are assigned to 2 unknown (i.e. x=2 and y=-2). Next video in this series can be seen at: https://youtu.be/dOl1AT6cWR4 |
Lecture 30![]() Play Video |
What is Addition Property of Equality? In this video I will explain and give an example of how Addition Property of Equality is used to solve algebraic equations. Next video in this series can be seen at: https://youtu.be/tcmv607sg6s |
Lecture 31![]() Play Video |
Solving Algebraic Equations: Solve x=? In this video I will solve algebraic equations with parentheses. Next video in this series can be seen at: https://youtu.be/XuDVKloeteA |
Lecture 32![]() Play Video |
Solving Algebraic Equations: Solve x=? In this video I will solve algebraic equations with fractions. Next video in this series can be seen at: https://youtu.be/fk_IG0W1Tgw |
Lecture 33![]() Play Video |
Solving Algebraic Equations: Solve x=? In this video I will solve algebraic equations with decimals. Next video in this series can be seen at: https://youtu.be/EGdf41v4SGE |
Lecture 34![]() Play Video |
Solving Algebraic Equations: Solve x=? Ex. In this video I will solve algebraic equations with parentheses, fractions, and decimals. Next video in this series can be seen at: https://youtu.be/VxaWsAIhb50 |
Lecture 35![]() Play Video |
Solving Inequalities 1 In this video I will find the region on the number line that satisfy the inequality 2x+3 is less than 7. Next video in this series can be seen at: https://youtu.be/NSja8AyIU-I |
Lecture 36![]() Play Video |
Solving Inequalities 2 In this video I will find the region on the number line that satisfy the inequality 0.4-0.2 greater than or equal to 1. Next video in this series can be seen at: https://youtu.be/grfAyR-WsDo |
Lecture 37![]() Play Video |
Solving Inequalities 3 In this video I will find the region on the number line that satisfy the inequality -2 is less than or equal to x-4 and less than 3. Next video in this series can be seen at: https://youtu.be/HTsYYafuTC8 |
Lecture 38![]() Play Video |
Solving Inequalities 4 In this video I will find the region on the number line that satisfy the inequality 3-x is less than or equal to -5. Next video in this series can be seen at: https://youtu.be/fjtfOgxqCz8 |
Lecture 39![]() Play Video |
Equation in 2 Variables: Concept In this video I will explain the concept of equations in 2 dependent and independent variables where y depends on the value of x. Next video in this series can be seen at: https://youtu.be/rOsTawh7Au0 |
Lecture 40![]() Play Video |
Equation in 2 Variables: Ordered Pairs In this video I will find the solutions to and graph (using ordered pairs) the equation (in 2 variables) y=x+4. Next video in this series can be seen at: https://youtu.be/Wn-Ild9x5IQ |
Lecture 41![]() Play Video |
Graphing Linear Equation 1 In this video I will graph the equation (in 2 variables) of y=2x-4 using order pairs and slope/y-intercept methods. Next video in this series can be seen at: https://youtu.be/utp8uw6Kav4 |
Lecture 42![]() Play Video |
Graphing Linear Equation 2 In this video I will graph the equation (in 2 variables) of 2y=x+6 using the slope/y-intercept method. Next video in this series can be seen at: https://youtu.be/pU5LqrwaRIo |
Lecture 43![]() Play Video |
What is Factoring? In this video I will explain what is factoring. Next video in this series can be seen at: |
Lecture 44![]() Play Video |
How to Factor: General Technique In this video I will explain the step-by-step general technique of factoring x^2-3x-10. Next video in this series can be seen at: https://youtu.be/HbqcTFNKneE |
Lecture 45![]() Play Video |
How to Factor: Foil Method In this video I will explain the step-by-step foil method of factoring x^2-3x-10. Next video in this series can be seen at: https://youtu.be/vNDbctoBUKs |
Lecture 46![]() Play Video |
Recognizing Different Types of Factoring In this video I will explain how to recognize the different types of factors 1) difference of squares, 2) perfect square, 3) common factor. Next video in this series can be seen at: https://youtu.be/_d5YQCzeOv0 |
Lecture 47![]() Play Video |
Factoring Polynomials w/ 4 Terms In this video I will show how to factor polynomials with 4 terms. Next video in this series can be seen at: https://youtu.be/8UJw-IfvvSk |
Lecture 48![]() Play Video |
Factoring with x^2 Coefficient In this video I will show method 1 of factoring when the x^2 coefficient does not equal to 1. Next video in this series can be seen at: https://youtu.be/lH09HF-OLg4 |
Lecture 49![]() Play Video |
Factoring with x^2 Coefficient: Foil Method In this video I will show method 2, foil method, of factoring when the x^2 coefficient does not equal to 1. Next video in this series can be seen at: https://youtu.be/KGcWYKHfthM |
Lecture 50![]() Play Video |
Factoring Quadratic Equations In this video I will solve a quadratic equation using factoring. Next video in this series can be seen at: https://youtu.be/XXIcc2EeC5A |
Lecture 51![]() Play Video |
Factoring Quadratic Equations: Ex 2 In this video I will solve and graph a quadratic equation, y=x^2-8x+12, using factoring. Next video in this series can be seen at: https://youtu.be/EReTtf5u3o4 |
Lecture 52![]() Play Video |
Factoring Quadratic Equations: Ex 3 In this video I will solve and graph a quadratic equation, y=x^2+9, using factoring. Next video in this series can be seen at: https://youtu.be/B-GWvlcjl_w |
Lecture 53![]() Play Video |
Factoring Quadratic Equations: Ex 4 In this video I will solve and graph a quadratic equation, y=x^2-4x+8, using factoring and the quadratic formula. First video in this series can be seen at: https://youtu.be/FDKl5vvLvM0 |
Lecture 54![]() Play Video |
Introduction In this video I will give an overview of the topics that will be covered in this Math Review Topic Chapter. Next video in this series can be seen at: https://youtu.be/yPlXL2rGOFY |
Lecture 55![]() Play Video |
Evaluate an Expression: Ex. 1 In this video I will evaluate a fraction with absolute values and radicals, example 1. Next video in this series can be seen at: https://youtu.be/1Uq4AYjSilQ |
Lecture 56![]() Play Video |
Evaluate an Expression: Ex. 2 In this video I will evaluate a fraction with absolute values with exponents and radicals, example 2. Next video in this series can be seen at: https://youtu.be/TYmIHbpdpYc |
Lecture 57![]() Play Video |
Evaluate an Expression: Ex. 3 In this video I will evaluate a fraction with parenthesis with exponents, example 3. Next video in this series can be seen at: https://youtu.be/NmGCDTPMoos |
Lecture 58![]() Play Video |
Evaluate an Expression: Ex. 4 In this video I will evaluate a fraction with parenthesis with exponents and radicals, example 4. Next video in this series can be seen at: https://youtu.be/W2AiZB7lKSU |
Lecture 59![]() Play Video |
Operation w/ Exponents: Ex. 1 In this video I will simplify an algebraic fraction with negative and fractional exponents, example 1 (2 ways). Next video in this series can be seen at: https://youtu.be/oIJLM_zk4ek |
Lecture 60![]() Play Video |
Operation w/ Exponents: Ex. 2 In this video I will simplify an algebraic fraction with negative and fractional exponents, example 2. Next video in this series can be seen at: https://youtu.be/urcXBPjsJIE |
Lecture 61![]() Play Video |
Operation w/ Exponents: Ex. 3 In this video I will simplify an algebraic fraction with negative and fractional exponents, example 3. Next video in this series can be seen at https://youtu.be/logW7sAqoKs: |
Lecture 62![]() Play Video |
Operation w/ Exponents: Ex. 4 In this video I will simplify an algebraic fraction with negative and fractional exponents, example 4. Next video in this series can be seen at: https://youtu.be/_JMbp72Ghs4 |
Lecture 63![]() Play Video |
Operation w/ Exponents: Ex. 5 In this video I will simplify an algebraic fraction with negative and fractional exponents, example 5. Next video in this series can be seen at: https://youtu.be/Zhe3d_DLomk |
Lecture 64![]() Play Video |
Radical & Exponential Form: Ex. 1 In this video I will re-write a radical expression in exponential form, example 1. Next video in this series can be seen at: https://youtu.be/lOfFBKY6E3w |
Lecture 65![]() Play Video |
Radical & Exponential Form: Ex. 2 In this video I will re-write an exponential expression in radical form, example 2. Next video in this series can be seen at: https://youtu.be/kSpgBi554Vg |
Lecture 66![]() Play Video |
Radical & Exponential Form: Ex. 3 In this video I will simplify an exponential expression, example 3. Next video in this series can be seen at: https://youtu.be/fkbLiVAoFBE |
Lecture 67![]() Play Video |
Radical & Exponential Form: Ex. 4 In this video I will re-write an exponential expression in radical form, example 4. Next video in this series can be seen at: https://youtu.be/daEyPZ8ibyw |
Lecture 68![]() Play Video |
Radical & Exponential Form: Ex. 5 In this video I will re-write an exponential expression in radical form, example 5. Next video in this series can be seen at: https://youtu.be/4lPlb5jbkUo |
Lecture 69![]() Play Video |
Operations with Polynomials: Example 1 In this video I will simplify algebraic expression with polynomials, example 1. Next video in this series can be seen at: https://youtu.be/awJFkWFVM9Y |
Lecture 70![]() Play Video |
Operations with Polynomials: Example 2 In this video I will simplify algebraic expression with polynomials, example 2. Next video in this series can be seen at: https://youtu.be/BATcKAdgSWw |
Lecture 71![]() Play Video |
Operations with Polynomials: Example 3 In this video I will simplify algebraic expression with polynomials, example 3. Next video in this series can be seen at: https://youtu.be/yTqHUzVW4g4 |
Lecture 72![]() Play Video |
Operations with Polynomials: Example 4 In this video I will simplify algebraic expression with polynomials, example 4. Next video in this series can be seen at: https://youtu.be/oZ_FDdsHpWY |
Lecture 73![]() Play Video |
Operations with Polynomials: Example 5 In this video I will simplify algebraic expression with polynomials, example 5. Next video in this series can be seen at: https://youtu.be/FgMCAq65cqA |
Lecture 74![]() Play Video |
Factoring Polynomials: Example 1 In this video I will factor algebraic expression with polynomials, example 1. Next video in this series can be seen at: https://youtu.be/L_XYPwSrKHE |
Lecture 75![]() Play Video |
Factoring Polynomials: Example 2 In this video I will factor algebraic expression with polynomials, example 2. Next video in this series can be seen at: https://youtu.be/vOQJR-9lsEk |
Lecture 76![]() Play Video |
Factoring Polynomials: Example 3 In this video I will factor algebraic expression with polynomials, example 3. Next video in this series can be seen at: https://youtu.be/cyD55bs-wdM |
Lecture 77![]() Play Video |
Factoring Polynomials: Example 4 In this video I will factor algebraic expression with polynomials, example 4. Next video in this series can be seen at: https://youtu.be/BMXtTSo3sPA |
Lecture 78![]() Play Video |
Reducing Radical Expression: Ex. 1 In this video I will reduce algebraic rational (fraction) expression with polynomials, example 1. Next video in this series can be seen at: https://youtu.be/-nfxQ1zHUg4 |
Lecture 79![]() Play Video |
Reducing Radical Expression: Ex. 2 In this video I will reduce algebraic rational (fraction) expression with polynomials, example 2. Next video in this series can be seen at: https://youtu.be/dL9F8YatGSI |
Lecture 80![]() Play Video |
Reducing Radical Expression: Ex. 3 In this video I will reduce algebraic rational (fraction) expression with polynomials, example 3. Next video in this series can be seen at: https://youtu.be/8NhHyP862dE |
Lecture 81![]() Play Video |
Reducing Radical Expression: Ex. 4 In this video I will reduce algebraic rational (fraction) expression with polynomials, example 4. Next video in this series can be seen at: https://youtu.be/INZYPEVzaF4 |
Lecture 82![]() Play Video |
Operations w/ Radical Exp: Ex: 1 In this video I will solve add, subtract, multiply, and divide algebraic expression with polynomials, example 1. Next video in this series can be seen at: https://youtu.be/y9SdgBRo4lE |
Lecture 83![]() Play Video |
Operations w/ Radical Exp: Ex: 2 In this video I will solve add, subtract, multiply, and divide algebraic expression with polynomials, example 2. Next video in this series can be seen at: https://youtu.be/x5qPFydhr6A |
Lecture 84![]() Play Video |
Operations w/ Radical Exp: Ex: 3 In this video I will solve add, subtract, multiply, and divide algebraic expression with polynomials, example 3. Next video in this series can be seen at: https://youtu.be/b4L8kqu3Ysk |
Lecture 85![]() Play Video |
Operations w/ Radical Exp: Ex: 4 In this video I will solve add, subtract, multiply, and divide algebraic expression with polynomials, example 4. Next video in this series can be seen at: https://youtu.be/qRtwdy66KPU |
Lecture 86![]() Play Video |
Operations w/ Radical Exp: Ex: 5 In this video I will solve add, subtract, multiply, and divide algebraic expression with polynomials, example 5. Next video in this series can be seen at: https://youtu.be/K6thlf6qxUE |
Lecture 87![]() Play Video |
Operations w/ Radical Exp: Ex: 6 In this video I will solve add, subtract, multiply, and divide algebraic expression with polynomials, example 6. Next video in this series can be seen at: https://youtu.be/ETllMQXBtEc |
Lecture 88![]() Play Video |
Operations w/ Radical Exp: Ex: 7 In this video I will solve add, subtract, multiply, and divide algebraic expression with polynomials, example 7. Next video in this series can be seen at: https://youtu.be/usQ31dNWjl0 |
Lecture 89![]() Play Video |
Operations w/ Radical Exp: Ex: 8 In this video I will solve add, subtract, multiply, and divide algebraic expression with polynomials, example 7. Next video in this series can be seen at: https://youtu.be/wzcyCnddUVc |
Lecture 90![]() Play Video |
Simplifying Radical Expressions: Ex. 1 In this video I will simplify radical algebraic expression, example 1. Next video in this series can be seen at: https://youtu.be/1659FsysBN4 |
Lecture 91![]() Play Video |
Simplifying Radical Expressions: Ex. 2 In this video I will simplify radical algebraic expression, example 2. Next video in this series can be seen at: https://youtu.be/4Yt4G1rbnTs |
Lecture 92![]() Play Video |
Simplifying Radical Expressions: Ex. 3 In this video I will simplify radical algebraic expression, example 3. Next video in this series can be seen at: https://youtu.be/wY2HLwMoDaM |
Lecture 93![]() Play Video |
Simplifying Radical Expressions: Ex. 4 In this video I will simplify radical algebraic expression, example 4. Next video in this series can be seen at: https://youtu.be/ekLqjy8zwwc |
Lecture 94![]() Play Video |
Operations w/ Radical: Ex. 1 In this video I will add/subtract radical algebraic expression, example 1. Next video in this series can be seen at: https://youtu.be/-4Y0tuRskDY |
Lecture 95![]() Play Video |
Operations w/ Radical: Ex. 2 In this video I will add/subtract radical algebraic expression, example 2. Next video in this series can be seen at: https://youtu.be/ZeMZFGTWpdM |
Lecture 96![]() Play Video |
Operations w/ Radical: Ex. 3 In this video I will add/subtract radical algebraic expression, example 3. Next video in this series can be seen at: https://youtu.be/IOPeVKL5FDY |
Lecture 97![]() Play Video |
Operations w/ Radical: Ex. 4 In this video I will add/subtract radical algebraic expression, example 4. Next video in this series can be seen at: https://youtu.be/yTUU8tlChRY |
Lecture 98![]() Play Video |
Find x=? (Solving Equations: 1) In this video I will find x=? of the algebraic equation, example 1. Next video in this series can be seen at: https://youtu.be/iioPp-D1XF8 |
Lecture 99![]() Play Video |
Find x=? (Solving Equations: 2) In this video I will find x=? of the algebraic equation, example 2. Next video in this series can be seen at: https://youtu.be/cDgvY68d6UU |
Lecture 100![]() Play Video |
Find x=? (Solving Equations: 3) In this video I will find x=? of the algebraic equation, example 3. Next video in this series can be seen at: |
Lecture 101![]() Play Video |
Find x=? (Solving Equations: 4) In this video I will find x=? of the algebraic equation, example 4. Next video in this series can be seen at: https://youtu.be/YWFkRhtdO98 |
Lecture 102![]() Play Video |
Find x=? (Solving Equations: 5) In this video I will find x=? of the algebraic equation, example 5. Next video in this series can be seen at: https://youtu.be/-GSCkKzjueU |
Lecture 103![]() Play Video |
Find x=? (Solving Equations: 6) In this video I will find x=? of the algebraic equation, example 6. Next video in this series can be seen at: https://youtu.be/YrgQUGxDGYY |
Lecture 104![]() Play Video |
Find x=? (Solving Equations: 7) In this video I will find x=? of the algebraic equation, example 7. Next video in this series can be seen at: |
Lecture 105![]() Play Video |
Find x=? (Solving Equations: 8) In this video I will find x=? of the algebraic equation, example 8. Next video in this series can be seen at: https://youtu.be/aO9wtGEvCk8 |
Lecture 106![]() Play Video |
Typical Algebric Mistake to Avoid: 1 In this video I show and explain typical algebraic mistakes students make, example 1. Next video in this series can be seen at: https://youtu.be/Qesi5bDwvj0 |
Lecture 107![]() Play Video |
Typical Algebric Mistake to Avoid: 2 In this video I show and explain typical algebraic mistakes students make, example 2. First video in this series can be seen at: https://youtu.be/45zT9A37Fwo |