Angles formed by parallel lines and transversals

1.1   Solving a proportion with an unknown variable (example)

1.2   Exploring scale copies

1.3   Identifying corresponding parts of scaled copies

1.4   Corresponding points and sides of scaled shapes

1.5   Identifying scaled copies

1.6   Identifying scale factor in drawings

1.7   Identifying values in scale drawings

1.8   Scale drawings

1.9   Ratio word problem: centimeters to kilometers

1.10   Interpreting a scale drawing

1.11   Creating scale drawings

1.12   How to make a scale drawing

1.13   Scale factors and area

1.14   Solve a scale drawing word problem

1.15   Angle basics

1.16   Complementary and supplementary angles

1.17   Introduction to vertical angles

1.19   Identifying parallel and perpendicular lines

1.20   Figuring out angles between transversal and parallel lines

1.21   Using algebra to find measures of angles formed from transversal

1.22   Proof: Sum of measures of angles in a triangle are 180

1.23   Equilateral and isosceles example problems

1.24   Triangle angle example 1

1.25   Triangle angle example 2

1.26   Triangle angle example 3

1.27   Challenging triangle angle problem

1.28   Finding more angles

1.29   How to approximate square roots

1.30   Comparing irrational numbers involving radicals

1.31   Approximating square roots to hundredths

1.32   Comparing values with calculator

1.33   The Pythagorean theorem intro

1.34   Pythagorean theorem 2

1.35   Pythagorean theorem with right triangle

1.36   Quadrilateral on the coordinate plane

1.37   Area of parallelogram on coordinate plane

1.38   Finding coordinates of missing vertex example

1.39   Example of shapes on a coordinate plane

1.40   Dimensions of rectangle from coordinates example

1.41   Coordinates of rectangle example

1.42   Parallelogram on the coordinate plane

1.43   Two-variable linear equations and their graphs

1.44   Checking ordered pair solutions to equations example 1

1.45   Checking ordered pair solutions to equations example 2

1.46   Graphing solutions to two-variable linear equations example 2

1.47   Introduction to slope

1.48   Positive and negative slope

1.49   Finding the slope of a line from its graph

1.50   Graphing a line given point and slope

1.51   Slope from two ordered pairs example 1

1.52   Identifying parallel and perpendicular lines

1.53   Slope from two ordered pairs example 2

1.54   Horizontal & vertical lines

1.55   Slope from equation

1.56   Writing equations in all forms

1.57   Factoring quadratics as (x+a)(x+b)

1.58   Factoring quadratics as (x+a)(x+b) (example 2)

1.59   More examples of factoring quadratics with a leading coefficient of 1

1.60   Perfect square factorization intro

1.61   Example 4: Factoring quadratics as a perfect square of a difference: (a-b)^2

1.62   Identifying perfect square form

1.63   Example 3: Factoring quadratics as a perfect square of a sum: (a+b)^2

1.64   Factoring perfect squares: missing values

1.65   Factoring perfect squares: shared factors

1.66   Introduction to vertex form of a quadratic

1.67   Graphing a parabola in vertex form

1.68   Solving quadratic equations by completing the square

1.69   Example 1: Completing the square

1.70   Worked example: Rewriting expressions by completing the square

1.71   Worked example: Solving equations by completing the square

1.72   Circles: radius, diameter, circumference and Pi

1.73   Labeling parts of a circle

1.74   Radius & diameter from circumference

1.75   Relating circumference and area

1.76   Area of a circle

1.77   Partial circle area and arc length

1.78   Slice a rectangular pyramid

1.79   Find the volume of a ring

1.80   Find the volume of a triangular prism and cube

1.81   Find the volume of rectangles inside rectangles

1.82   Cylinder volume and surface area

1.83   Volume of a sphere

1.84   Volume of a cone