8th grade Math (Revised K to 10) - 3 Terms
3 units146 videos13 hours
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Unit 1: 1st term
Measures of central tendency
Algebraic expressions and operations with monomials, binomials, and multinomials
The beauty of algebra ✓ Check-ins10:07
Intro to the coordinate plane ✓ Check-ins11:22
Why all the letters in algebra? ✓ Check-ins3:04
What is a variable? ✓ Check-ins3:18
Why aren't we using the multiplication sign? ✓ Check-ins4:58
Adding polynomials ✓ Check-ins2:01
Subtracting polynomials ✓ Check-ins2:07
Multiplying monomials ✓ Check-ins3:16
Multiplying monomials to find area: two variables ✓ Check-ins1:52
Multiplying monomials to find area ✓ Check-ins1:05
Multiplying monomials challenge ✓ Check-ins ✎ Fixed a slip3:32
Simplifying rational expressions (old video) ✓ Check-ins0:56
Multiplying monomials by polynomials: area model ✓ Check-ins1:34
Multiplying monomials by polynomials ✓ Check-ins2:43
Multiplying monomials by polynomials challenge ✓ Check-ins4:18
Special products
Factoring polynomials
Factoring completely with a common factor ✓ Check-ins4:00
Factoring quadratics with a common factor ✓ Check-ins3:05
Difference of squares intro ✓ Check-ins4:54
Identifying perfect square form ✓ Check-ins4:37
Perfect square factorization intro ✓ Check-ins5:19
Factoring perfect squares ✓ Check-ins4:54
Factoring perfect squares: negative common factor ✓ Check-ins3:52
Factoring quadratics as (x+a)(x+b) ✓ Check-ins6:34
Factoring quadratics as (x+a)(x+b) (example 2) ✓ Check-ins4:20
More examples of factoring quadratics as (x+a)(x+b) ✓ Check-ins16:30
Factoring perfect squares: missing values ✓ Check-ins2:39
Rational algebraic expressions
Reducing rational expressions to lowest terms ✓ Check-ins15:22
Simplifying rational expressions: common monomial factors ✓ Check-ins6:59
Adding & subtracting rational expressions: like denominators ✓ Check-ins3:45
Intro to adding rational expressions with unlike denominators ✓ Check-ins2:44
Adding rational expression: unlike denominators ✓ Check-ins5:11
Subtracting rational expressions: unlike denominators ✓ Check-ins4:47
Subtracting rational expressions: factored denominators ✓ Check-ins4:48
Multiplying & dividing rational expressions: monomials ✓ Check-ins5:56
Multiplying rational expressions ✓ Check-ins4:52
Dividing rational expressions ✓ Check-ins ✎ Fixed a slip4:10
Multiplying rational expressions: multiple variables ✓ Check-ins3:38
Dividing rational expressions: unknown expression ✓ Check-ins6:02
Cartesian coordinate plane
Introduction to the coordinate plane ✓ Check-ins6:48
Coordinate plane: graphing points ✓ Check-ins2:21
Points and quadrants example ✓ Check-ins1:56
Finding the point not graphed ✓ Check-ins1:03
Coordinate plane graphing word problem ✓ Check-ins2:06
Distance formula ✓ Check-ins9:39
Midpoint formula ✓ Check-ins6:41
Unit 2: 2nd term
Volume of pyramids
Volume of cones and spheres
Pythagorean theorem
Triangle inequality theorem
Linear equations in one variable
Intro to two-step equations ✓ Check-ins5:12
Two-step equations intuition ✓ Check-ins8:41
Worked example: two-step equations ✓ Check-ins3:04
Describing steps when solving equations ✓ Check-ins2:16
Equations with variables on both sides: 20-7x=6x-6 ✓ Check-ins4:06
Equation with variables on both sides: fractions ✓ Check-ins4:50
Equation with the variable in the denominator ✓ Check-ins3:24
Figuring out missing algebraic step ✓ Check-ins1:54
Two-step equation word problem: oranges ✓ Check-ins5:59
Two-step equation word problem: computers ✓ Check-ins4:46
Two-step equation word problem: garden ✓ Check-ins2:02
Sums of consecutive integers ✓ Check-ins5:19
Linear inequalities in one variable
One-step inequalities examples ✓ Check-ins10:27
One-step inequalities: -5c ≤ 15 ✓ Check-ins2:54
One-step inequality involving addition ✓ Check-ins1:54
One-step inequality word problem ✓ Check-ins2:09
Inequalities using addition and subtraction ✓ Check-ins7:48
Two-step inequalities ✓ Check-ins4:32
Two-step inequality word problem: apples ✓ Check-ins6:39
Two-step inequality word problem: R&B ✓ Check-ins2:01
Inequalities with variables on both sides ✓ Check-ins5:38
Inequalities with variables on both sides (with parentheses) ✓ Check-ins3:47
Multi-step inequalities ✓ Check-ins8:02
Testing solutions to inequalities ✓ Check-ins5:10
Plotting inequalities ✓ Check-ins2:07
Plotting an inequality example ✓ Check-ins1:34
Inequalities word problems ✓ Check-ins2:56
Linear equations in two variables
Two-variable linear equations intro ✓ Check-ins8:21
Worked example: solutions to 2-variable equations ✓ Check-ins2:26
Completing solutions to 2-variable equations ✓ Check-ins7:11
Intro to linear equation standard form ✓ Check-ins8:07
x-intercept of a line ✓ Check-ins1:43
Intercepts from a table ✓ Check-ins4:00
Intercepts from an equation ✓ Check-ins4:08
Worked example: intercepts from an equation ✓ Check-ins3:25
Slope & direction of a line ✓ Check-ins2:35
Worked example: slope from graph ✓ Check-ins4:40
Slope of a line: negative slope ✓ Check-ins4:00
Worked example: slope from two points ✓ Check-ins7:12
Slope of a horizontal line ✓ Check-ins5:05
Intro to slope-intercept form ✓ Check-ins9:00
Worked examples: slope-intercept intro ✓ Check-ins3:46
Slope and y-intercept from equation ✓ Check-ins4:10
Slope-intercept equation from slope & point ✓ Check-ins3:46
Slope-intercept equation from two points ✓ Check-ins6:42
Converting to slope-intercept form ✓ Check-ins5:07
Slope-intercept form problems ✓ Check-ins14:58
Intro to point-slope form ✓ Check-ins6:07
Point-slope & slope-intercept equations ✓ Check-ins7:07
Graph from slope-intercept equation ✓ Check-ins3:01
Unit 3: 3rd term
Systems of linear equations in two variables
Systems of equations: trolls, tolls (1 of 2) ✓ Check-ins6:51
Systems of equations: trolls, tolls (2 of 2) ✓ Check-ins5:41
Testing a solution to a system of equations ✓ Check-ins2:38
Systems of equations with graphing: y=7/5x-5 & y=3/5x-1 ✓ Check-ins2:22
Systems of equations with graphing: exact & approximate solutions ✓ Check-ins5:56
Number of solutions to a system of equations ✓ Check-ins3:26
Number of solutions to a system of equations graphically ✓ Check-ins6:36
Solutions to systems of equations: consistent vs. inconsistent ✓ Check-ins5:29
Solutions to systems of equations: dependent vs. independent ✓ Check-ins5:10
Number of solutions to a system of equations algebraically ✓ Check-ins6:01
How many solutions does a system of linear equations have if there are at least two? ✓ Check-ins2:12
Systems of equations with substitution: -3x-4y=-2 & y=2x-5 ✓ Check-ins4:21
Systems of equations with elimination: x-4y=-18 & -x+3y=11 ✓ Check-ins5:59
Systems of equations with elimination (and manipulation) ✓ Check-ins12:01
Why can we subtract one equation from the other in a system of equations? ✓ Check-ins8:13
Systems of equations number of solutions: fruit prices (1 of 2) ✓ Check-ins9:25
Systems of equations number of solutions: fruit prices (2 of 2) ✓ Check-ins7:08
Systems of equations with substitution: potato chips ✓ Check-ins5:21
Systems of equations with elimination: King's cupcakes ✓ Check-ins9:00
Linear inequalities in two variables
Measures of variability
Experimental and theoretical probability
Theoretical and experimental probabilities ✓ Check-ins7:02
Experimental probability ✓ Check-ins6:55
Intro to theoretical probability ✓ Check-ins8:18
Simple probability: yellow marble ✓ Check-ins2:56
Simple probability: non-blue marble ✓ Check-ins9:56
Making predictions with probability ✓ Check-ins5:05
Intuitive sense of probabilities ✓ Check-ins8:51
Fundamental counting principle
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