# Courses tagged with "Class2Go" (384)

Understanding and solving equations with imaginary numbers. Introduction to i and Imaginary Numbers. Calculating i Raised to Arbitrary Exponents. Imaginary unit powers. Imaginary Roots of Negative Numbers. i as the Principal Root of -1 (a little technical). Complex numbers. Complex numbers (part 1). Complex numbers (part 2). Plotting complex numbers on the complex plane. The complex plane. Adding Complex Numbers. Subtracting Complex Numbers. Adding and subtracting complex numbers. Multiplying Complex Numbers. Multiplying complex numbers. Complex Conjugates Example. Dividing Complex Numbers. Dividing complex numbers. Absolute value of a complex number. Absolute value of complex numbers. Example: Complex roots for a quadratic. Algebra II: Imaginary and Complex Numbers. Introduction to i and Imaginary Numbers. Calculating i Raised to Arbitrary Exponents. Imaginary unit powers. Imaginary Roots of Negative Numbers. i as the Principal Root of -1 (a little technical). Complex numbers. Complex numbers (part 1). Complex numbers (part 2). Plotting complex numbers on the complex plane. The complex plane. Adding Complex Numbers. Subtracting Complex Numbers. Adding and subtracting complex numbers. Multiplying Complex Numbers. Multiplying complex numbers. Complex Conjugates Example. Dividing Complex Numbers. Dividing complex numbers. Absolute value of a complex number. Absolute value of complex numbers. Example: Complex roots for a quadratic. Algebra II: Imaginary and Complex Numbers.

Understanding and solving matrices. Introduction to the matrix. Matrix dimensions. Scalar multiplication. Scalar matrix multiplication. Matrix addition and subtraction. Matrix addition and subtraction. Transpose of a matrix. Matrix transpose. Multiplying a matrix by a column vector. Multiplying a matrix by a vector. Multiplying a matrix by a matrix. Multiplying a matrix by a matrix. Defined and undefined matrix operations. Defined and undefined matrix operations. Matrix multiplication (part 1). Matrix multiplication (part 2). Finding the Determinant of a 2x2 matrix. Determinant of a 2x2 matrix. Inverse of a 2x2 matrix. Idea Behind Inverting a 2x2 Matrix. Inverse of a 2x2 matrix. Matrices to solve a system of equations. Matrices to solve a vector combination problem. Finding the determinant of a 3x3 matrix method 1. Finding the determinant of a 3x3 matrix method 2. Determinant of a 3x3 matrix. Inverting 3x3 part 1: Calculating Matrix of Minors and Cofactor Matrix. Inverting 3x3 part 2: Determinant and Adjugate of a Matrix. Classic video on inverting a 3x3 matrix part 1. Classic video on inverting a 3x3 matrix part 2. Singular Matrices. Inverse of a 3x3 matrix. Matrices: Reduced Row Echelon Form 1. Matrices: Reduced Row Echelon Form 2. Matrices: Reduced Row Echelon Form 3. Introduction to the matrix. Matrix dimensions. Scalar multiplication. Scalar matrix multiplication. Matrix addition and subtraction. Matrix addition and subtraction. Transpose of a matrix. Matrix transpose. Multiplying a matrix by a column vector. Multiplying a matrix by a vector. Multiplying a matrix by a matrix. Multiplying a matrix by a matrix. Defined and undefined matrix operations. Defined and undefined matrix operations. Matrix multiplication (part 1). Matrix multiplication (part 2). Finding the Determinant of a 2x2 matrix. Determinant of a 2x2 matrix. Inverse of a 2x2 matrix. Idea Behind Inverting a 2x2 Matrix. Inverse of a 2x2 matrix. Matrices to solve a system of equations. Matrices to solve a vector combination problem. Finding the determinant of a 3x3 matrix method 1. Finding the determinant of a 3x3 matrix method 2. Determinant of a 3x3 matrix. Inverting 3x3 part 1: Calculating Matrix of Minors and Cofactor Matrix. Inverting 3x3 part 2: Determinant and Adjugate of a Matrix. Classic video on inverting a 3x3 matrix part 1. Classic video on inverting a 3x3 matrix part 2. Singular Matrices. Inverse of a 3x3 matrix. Matrices: Reduced Row Echelon Form 1. Matrices: Reduced Row Echelon Form 2. Matrices: Reduced Row Echelon Form 3.

Adding and subtracting positive and negative whole numbers. Starts with 1+1=2 and covers carrying, borrowing, and word problems. Basic Addition. 1-digit addition. Basic Subtraction. 1-digit subtraction. Example: Adding two digit numbers (no carrying). 2-digit addition. Subtraction 2. Example: 2-digit subtraction (no borrowing). 2 and 3-digit subtraction. Level 2 Addition. Introduction to carrying when adding. Addition 3. Addition with carrying. Addition 4. 4-digit addition with carrying. Subtraction 3: Introduction to Borrowing or Regrouping. Why borrowing works. Borrowing once example 1. Borrowing once example 2. Subtraction with borrowing. Regrouping (borrowing) twice example. 4-digit subtraction with borrowing. Alternate mental subtraction method. Level 4 Subtraction. Subtraction Word Problem. Addition and subtraction word problems. Basic Addition. 1-digit addition. Basic Subtraction. 1-digit subtraction. Example: Adding two digit numbers (no carrying). 2-digit addition. Subtraction 2. Example: 2-digit subtraction (no borrowing). 2 and 3-digit subtraction. Level 2 Addition. Introduction to carrying when adding. Addition 3. Addition with carrying. Addition 4. 4-digit addition with carrying. Subtraction 3: Introduction to Borrowing or Regrouping. Why borrowing works. Borrowing once example 1. Borrowing once example 2. Subtraction with borrowing. Regrouping (borrowing) twice example. 4-digit subtraction with borrowing. Alternate mental subtraction method. Level 4 Subtraction. Subtraction Word Problem. Addition and subtraction word problems.

Select problems from ck12.org's Algebra 1 FlexBook (Open Source Textbook). This is a good playlist to review if you want to make sure you have a good understanding of all of the major topics in Algebra I. Variable Expressions. Order of Operations Example. Patterns and Equations. Equations and Inequalities. Domain and Range of a Function. Functions as Graphs. Word Problem Solving Plan 1. Word Problem Solving Strategies. Integers and Rational Numbers. Addition of Rational Numbers. Subtraction of Rational Numbers. Multiplication of Rational Numbers. Distributive Property Example 1. Division of Rational Numbers. Square Roots and Real Numbers. Problem Solving Word Problems 2. One Step Equations. Two-Step Equations. Ex 1: Distributive property to simplify . Ex 3: Distributive property to simplify . Ratio and Proportion. Scale and Indirect Measurement. Percent Problems. Another percent example. The Coordinate Plane. Graphing Using Intercepts. Graphs of Linear Equations. Slope and Rate of Change. Graphs Using Slope-Intercept Form. Direct Variation Models. Function example problems. Word Problem Solving 4. Linear Equations in Slope Intercept Form. Linear Equations in Point Slope Form. Linear Equations in Standard Form. Equations of Parallel and Perpendicular Lines. Fitting a Line to Data. Predicting with Linear Models. Using a Linear Model. Inequalities Using Addition and Subtraction. Inequalities Using Multiplication and Division. Compound Inequalities. Absolute Value Equations. Absolute Value Inequalities. Graphing Inequalities. Solving Linear Systems by Graphing. Solving Linear Systems by Substitution. Solving Systems of Equations by Elimination. Solving Systems of Equations by Multiplication. Special Types of Linear Systems. Systems of Linear Inequalities. Exponent Properties Involving Products. Exponent Properties Involving Quotients. Zero, Negative, and Fractional Exponents. Scientific Notation. Exponential Growth Functions. Exponential Decay Functions. Geometric Sequences (Introduction). Word Problem Solving- Exponential Growth and Decay. Addition and Subtraction of Polynomials. Multiplication of Polynomials. Special Products of Binomials. Polynomial Equations in Factored Form. Factoring quadratic expressions. Factoring Special Products. Factor by Grouping and Factoring Completely. Graphs of Quadratic Functions. Solving Quadratic Equations by Graphing. Solving Quadratic Equations by Square Roots. Solving Quadratic Equations by Completing the Square. How to Use the Quadratic Formula. Proof of Quadratic Formula. Discriminant of Quadratic Equations. Linear, Quadratic, and Exponential Models. Identifying Quadratic Models. Identifying Exponential Models. Quadratic Regression. Shifting functions. Radical Expressions with Higher Roots. More Simplifying Radical Expressions. How to Rationalize a Denominator. Extraneous Solutions to Radical Equations. Radical Equation Examples. More Involved Radical Equation Example. Pythagorean Theorem. Distance Formula. Midpoint Formula. Visual Pythagorean Theorem Proof. Average or Central Tendency: Arithmetic Mean, Median, and Mode. Range, Variance and Standard Deviation as Measures of Dispersion. Stem and Leaf Plots. Histograms. Box-and-whisker Plot. Proportionality. Asymptotes of Rational Functions. Another Rational Function Graph Example. A Third Example of Graphing a Rational Function. Polynomial Division. Simplifying Rational Expressions Introduction. Multiplying and Dividing Rational Expressions. Adding Rational Expressions Example 1. Adding Rational Expressions Example 2. Adding Rational Expressions Example 3. Solving Rational Equations. Two more examples of solving rational equations. Surveys and Samples.

Defining and using the commutative, associative, distributive, identity, and inverse properties. Commutative Law of Addition. Commutative Law of Multiplication. Associative Law of Addition. Associative Law of Multiplication. Commutative Property for Addition. The Distributive Property. The Distributive Property 2. Distributive Property Example 1. CA Algebra I: Number Properties and Absolute Value. Identity Property of 1. Identity property of 1 (second example). Identity property of 0. Inverse Property of Addition. Inverse Property of Multiplication. Why Dividing by Zero is Undefined. Why Zero Divided by Zero is Undefined/Indeterminate. Undefined and Indeterminate.

With the failure of the French Revolution (Napoleon crowned himself Emperor, and after his defeat, a King was restored to power in France), there was a turn away from public, political life, toward personal, subjective experience. In large part, this turn characterizes the new style of Romanticism (don

Introduction to Evolution and Natural Selection. Ape Clarification. Intelligent Design and Evolution. Evolution Clarification. Natural Selection and the Owl Butterfly. DNA. Variation in a Species. Introduction to Evolution and Natural Selection. Ape Clarification. Intelligent Design and Evolution. Evolution Clarification. Natural Selection and the Owl Butterfly. DNA. Variation in a Species.

Diffusion and Osmosis. Parts of a cell. Chromosomes, Chromatids, Chromatin, etc.. Mitosis, Meiosis and Sexual Reproduction. Phases of Mitosis. Phases of Meiosis. Embryonic Stem Cells. Cancer. Diffusion and Osmosis. Parts of a cell. Chromosomes, Chromatids, Chromatin, etc.. Mitosis, Meiosis and Sexual Reproduction. Phases of Mitosis. Phases of Meiosis. Embryonic Stem Cells. Cancer.

ATP: Adenosine Triphosphate. Photosynthesis. Photosynthesis: Light Reactions 1. Photosynthesis: Light Reactions and Photophosphorylation. Photosynthesis: Calvin Cycle. Photorespiration. C-4 Photosynthesis. CAM Plants. ATP: Adenosine Triphosphate. Photosynthesis. Photosynthesis: Light Reactions 1. Photosynthesis: Light Reactions and Photophosphorylation. Photosynthesis: Calvin Cycle. Photorespiration. C-4 Photosynthesis. CAM Plants.

Multiplying and dividing positive and negative whole numbers, understanding place value, and rounding numbers. Number line 1. Number line 1. Basic Multiplication. Multiplying 1-digit numbers. Multiplication 2: The Multiplication Tables. Example: Ways to represent multiplication. Multiplication 3: 10,11,12 times tables. Division 1. Basic division. 1-digit division. Example: Expressing division in multiple ways. Comparing with multiplication exercise. Comparing with multiplication. Example: 1-digit multiplication word problem. Multiplication word problem example 1. Division word problem example 1. Multiplication and division word problems. Multiplication and division word problems 2. Multiplication and division word problems 2. Multiplying by multiples of 10. Multiplying by multiples of 10. 2-digit times 1-digit number. 2 digit times 1 digit example (no carrying). 3 digit times 1 digit example (no carrying). Multiplication without carrying. 2 digit times 1 digit example. 3 digit times 1 digit example. 4 digit times 1 digit example. Multiplication with carrying. 2-digit times a 2-digit number. Example: 2-digit times 2-digit. Multiplying 2 digits by 2 digits. Multiple Digit Numbers. Multi-digit multiplication. Multiplication estimation example. Multiplication 7: Old video giving more examples. Introduction to long division. Multi-digit division without remainders. Introduction to remainders. Long division with remainder example. More long division without and with remainders. Division with remainders. Dividing by a two digit number. Division by 2 digits. Multi-digit division. Level 4 division. Lattice Multiplication. Why Lattice Multiplication Works. Partial Quotient Division. Partial Quotient Method of Division 2. Multi step word problems with whole numbers exercise 1. Multi step word problems with whole numbers exercise 2. Multi step word problems with whole numbers exercise 3. Multi-step word problems with whole numbers. Understanding multiplication through area models. Area model for multiplication. Number line 1. Number line 1. Basic Multiplication. Multiplying 1-digit numbers. Multiplication 2: The Multiplication Tables. Example: Ways to represent multiplication. Multiplication 3: 10,11,12 times tables. Division 1. Basic division. 1-digit division. Example: Expressing division in multiple ways. Comparing with multiplication exercise. Comparing with multiplication. Example: 1-digit multiplication word problem. Multiplication word problem example 1. Division word problem example 1. Multiplication and division word problems. Multiplication and division word problems 2. Multiplication and division word problems 2. Multiplying by multiples of 10. Multiplying by multiples of 10. 2-digit times 1-digit number. 2 digit times 1 digit example (no carrying). 3 digit times 1 digit example (no carrying). Multiplication without carrying. 2 digit times 1 digit example. 3 digit times 1 digit example. 4 digit times 1 digit example. Multiplication with carrying. 2-digit times a 2-digit number. Example: 2-digit times 2-digit. Multiplying 2 digits by 2 digits. Multiple Digit Numbers. Multi-digit multiplication. Multiplication estimation example. Multiplication 7: Old video giving more examples. Introduction to long division. Multi-digit division without remainders. Introduction to remainders. Long division with remainder example. More long division without and with remainders. Division with remainders. Dividing by a two digit number. Division by 2 digits. Multi-digit division. Level 4 division. Lattice Multiplication. Why Lattice Multiplication Works. Partial Quotient Division. Partial Quotient Method of Division 2. Multi step word problems with whole numbers exercise 1. Multi step word problems with whole numbers exercise 2. Multi step word problems with whole numbers exercise 3. Multi-step word problems with whole numbers. Understanding multiplication through area models. Area model for multiplication.

Understanding and finding factors and multiples. After these videos, you'll be ready for fractions. Divisibility Tests for 2, 3, 4, 5, 6, 9, 10. Recognizing Divisibility. The Why of the 3 Divisibility Rule. The Why of the 9 Divisibility Rule. Divisibility tests. Finding Factors of a Number. Finding factors and multiples. Divisibility 0.5. Divisibility Intuition. Divisibility intuition. Prime Numbers. Recognizing Prime Numbers. Prime numbers. Composite numbers. Prime Factorization. Prime factorization exercise. Prime factorization. The fundamental theorem of arithmetic. The fundamental theorem of arithmetic. Common Divisibility Examples. Divisibility. Least common multiple exercise. Least common multiple exercise 2. Least Common Multiple (LCM). Old Least Common Multiple. Least common multiple. Greatest common divisor factor exercise. Greatest Common Divisor. Greatest common divisor. LCM and GCF (greatest common factor) word problems. LCM and GCD word problems. Divisibility Tests for 2, 3, 4, 5, 6, 9, 10. Recognizing Divisibility. The Why of the 3 Divisibility Rule. The Why of the 9 Divisibility Rule. Divisibility tests. Finding Factors of a Number. Finding factors and multiples. Divisibility 0.5. Divisibility Intuition. Divisibility intuition. Prime Numbers. Recognizing Prime Numbers. Prime numbers. Composite numbers. Prime Factorization. Prime factorization exercise. Prime factorization. The fundamental theorem of arithmetic. The fundamental theorem of arithmetic. Common Divisibility Examples. Divisibility. Least common multiple exercise. Least common multiple exercise 2. Least Common Multiple (LCM). Old Least Common Multiple. Least common multiple. Greatest common divisor factor exercise. Greatest Common Divisor. Greatest common divisor. LCM and GCF (greatest common factor) word problems. LCM and GCD word problems.

This tutorial will help us make sure we can go deep on arithmetic. We'll explore various ways to represent whole numbers, place value, order of operations, rounding and various other properties of arithmetic. Introduction to Order of Operations. Order of Operations. Order of Operations 1. More Complicated Order of Operations Example. Order of Operations examples. Order of operations. Place Value 1. Place Value 2. Place Value 3. Place value. Representing numbers. Representing numbers. Comparing place values. Understanding place value 1 exercise. Understanding place value 1. Place value relationships example. Rounding Whole Numbers 1. Rounding Whole Numbers 2. Rounding Whole Numbers 3. Rounding whole numbers. The Distributive Property. The Distributive Property 2. Distributive Property Example 1. Distributive property exercise. Distributive property. Counting 1 exercise. Counting 1. Regrouping numbers intro various place values. Comparing whole number place values. Largest possible number from 4 digits example. Understanding whole number representations. Recognizing irrational numbers. Recognizing rational and irrational numbers. Regrouping whole numbers. Regrouping whole numbers example 1. Regrouping whole numbers example 2. Regrouping whole numbers. Commutative Law of Addition. Commutative Property for Addition. Commutative Law of Multiplication. Associative Law of Addition. Associative Law of Multiplication. CA Algebra I: Number Properties and Absolute Value. Properties of numbers 1. Number properties terminology 1. Identity Property of 1. Identity property of 1 (second example). Identity property of 0. Inverse Property of Addition. Inverse Property of Multiplication. Properties of numbers 2. Introduction to Order of Operations. Order of Operations. Order of Operations 1. More Complicated Order of Operations Example. Order of Operations examples. Order of operations. Place Value 1. Place Value 2. Place Value 3. Place value. Representing numbers. Representing numbers. Comparing place values. Understanding place value 1 exercise. Understanding place value 1. Place value relationships example. Rounding Whole Numbers 1. Rounding Whole Numbers 2. Rounding Whole Numbers 3. Rounding whole numbers. The Distributive Property. The Distributive Property 2. Distributive Property Example 1. Distributive property exercise. Distributive property. Counting 1 exercise. Counting 1. Regrouping numbers intro various place values. Comparing whole number place values. Largest possible number from 4 digits example. Understanding whole number representations. Recognizing irrational numbers. Recognizing rational and irrational numbers. Regrouping whole numbers. Regrouping whole numbers example 1. Regrouping whole numbers example 2. Regrouping whole numbers. Commutative Law of Addition. Commutative Property for Addition. Commutative Law of Multiplication. Associative Law of Addition. Associative Law of Multiplication. CA Algebra I: Number Properties and Absolute Value. Properties of numbers 1. Number properties terminology 1. Identity Property of 1. Identity property of 1 (second example). Identity property of 0. Inverse Property of Addition. Inverse Property of Multiplication. Properties of numbers 2.

Solving and writing ratios and proportions without algebra. Introduction to Ratios (new HD version). Understanding Proportions. Ratios as Fractions in Simplest Form. Simplifying Rates and Ratios. Find an Unknown in a Proportion 2. Finding Unit Rates. Finding Unit Prices. Unit conversion. Converting units of length. Conversion between metric units. U.S. Customary and Metric units. Converting within the metric system. Converting Gallons to quarts pints and cups. Converting pounds to ounces. Comparing Celsius and Farenheit temperature scales. Converting Fahrenheit to Celsius. Speed translation.

New to art? If so, this is a good place to start. We often think we should understand what we see and that we know what we like, but art can be challenging. It has meant different things at different moments in history. Art gives us access to the way other people have seen the world. Jump in and explore!. A Beginner's Guide to the History of Western Culture. Common Questions about Dates. Why Look at Art?. The Skill of Describing. The Skill of Describing. The Classical Orders. How One-Point Linear Perspective Works. Art History Basics. Woodcuts and Etchings. Tempera Paint. Oil Paint. Oil Paint in Venice. Bronze Casting. Quarrying & Carving Marble. Art History - Media. A Beginner's Guide to the History of Western Culture. Common Questions about Dates. Why Look at Art?. The Skill of Describing. The Skill of Describing. The Classical Orders. How One-Point Linear Perspective Works. Art History Basics. Woodcuts and Etchings. Tempera Paint. Oil Paint. Oil Paint in Venice. Bronze Casting. Quarrying & Carving Marble. Art History - Media.

Groups of the Periodic Table. Valence Electrons. Periodic Table Trends: Ionization Energy. Other Periodic Table Trends. Ionic, Covalent, and Metallic Bonds. Groups of the Periodic Table. Valence Electrons. Periodic Table Trends: Ionization Energy. Other Periodic Table Trends. Ionic, Covalent, and Metallic Bonds.

Ideal Gas Equation: PV=nRT. Ideal Gas Equation Example 1. Ideal Gas Equation Example 2. Ideal Gas Equation Example 3. Ideal Gas Equation Example 4. Partial Pressure. Vapor Pressure Example. Ideal Gas Equation: PV=nRT. Ideal Gas Equation Example 1. Ideal Gas Equation Example 2. Ideal Gas Equation Example 3. Ideal Gas Equation Example 4. Partial Pressure. Vapor Pressure Example.

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