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Lessons
Math
General Math Strategies
Mental Math: Dividing by 5
2:49
Mental Math: Doubling and Halving
6:08
Mental Math: Squaring Shortcuts
12:26
Number Sense
10:35
Arithmetic
Properties of Real Numbers
8:25
Positive and Negative Numbers - I
6:00
Positive and Negative Numbers - II
7:44
Mental Math, Addition, and Subtraction
6:19
Order of Operations
11:26
Intro to Decimals
11:28
Rounding
6:23
Multiples of 10
9:45
Fractions
Intro to Fractions
9:27
Conversions: Fractions and Decimals
8:14
Fraction Properties - I
8:36
Fraction Properties - II
7:57
Mixed Numerals and Improper Fractions
10:30
Operations with Fractions
8:23
Word Problems with Fractions
3:37
Eliminating Fractions
8:56
Comparing Fractions
13:54
Percents and Ratios
Intro to Percents
5:27
Working with Percents
3:35
Number Sense and Percents
4:23
Percent Increases and Decreases
10:35
Sequential Percent Changes
6:53
Intro to Ratios
9:57
Combining Ratios
5:39
Ratios and Rates
6:15
Integer Properties
Divisibility
10:12
Divisibility Rules
8:02
Multiples
8:25
Prime Numbers
6:28
Greatest Common Factor
5:57
Least Common Multiple
9:18
GCD LCM Formula
5:32
Squares of Integers
5:30
Algebra
Intro to Algebra
7:56
Simplifying Expressions
6:32
Multiplying Expressions
7:52
FOIL Method
8:50
Factoring - GCF
5:10
Factoring - Difference of Two Squares
12:01
Factoring - Quadratics
7:50
Factoring - Combined
4:25
Advanced Numerical Factoring
7:09
Factoring - Rational Expressions
5:11
Basic Equation Solving
6:19
Quadratic Equations
8:04
Two Equations, Two Unknowns - I
7:58
Two Equations, Two Unknowns - II
10:22
Inequalities - I
13:55
Inequalities - II
11:07
Absolute Value Equations
10:23
Absolute Value Inequalities
4:47
Powers and Roots
Intro to Exponents
9:10
Law of Exponents - I
12:47
Negative Exponents
11:02
Law of Exponents - II
10:42
Square Roots
14:53
Other Roots
11:52
Properties of Roots
4:05
Simplifying Roots
8:31
Operations with Roots
12:41
Equations with Square Roots
9:43
Fractional Exponents
7:13
Geometry
Lines and Angles
16:06
Triangles - Part I
11:32
Triangles - Part II
17:37
Right Triangles
13:54
Quadrilaterals
17:35
Area of Quadrilaterals
6:33
Polygons
7:30
Regular Polygons
7:08
Circles
6:03
Circle Properties
12:21
Rectangular Solids
6:50
Prisms & Pyramids
10:51
Cylinder, Cones, Spheres
5:53
Volume and Surface Area
12:42
Units of Measurement
8:05
Coordinate Geometry
The Coordinate Plane
7:14
Graphing Lines
5:19
Vertical and Horizontal Lines
8:35
Slope
12:39
Intercepts
5:46
Slope-Intercept Form
8:18
Writing Equations of Lines
11:35
Statistics
Mean, Median, Mode
9:32
More on Mean and Median
4:34
Range and Standard Deviation
16:06
Data Analysis
Intro to ACT Data Interpretation
1:19
Types of Graphics
3:27
Timeplots for Motion
3:27
Other Timeplots
5:34
Histograms
3:58
Scatter Plots
10:10
Unconventional Graphs
10:32
Tables of Values
4:14
Probability
Intro to Probability
5:59
Complementary Events and Simple Rules
3:22
Mutually Exclusive Events
2:33
Probability of Event A OR Event B
3:50
Independent Events
6:26
Examples of the AND Rule
4:44
Generalized AND Rule
3:52
Examples of Generalized AND Rule
7:05