Testing whether area is proportional to side length

2.1   Decimal to simplified fraction

2.2   Fraction to decimal

2.3   Fraction to decimal example

2.4   Fraction to decimal with rounding

2.5   Introduction to exponents

2.6   The zeroth power

2.7   Comparing exponent expressions

2.8   Exponents of decimals

2.9   Powers of fractions

2.10   Evaluating exponent expressions with variables

2.11   Order of operations examples: exponents

2.12   Order of operations example

2.13   Order of operations: PEMDAS

2.14   Order of operations example: putting it all together

2.15   Introduction to powers of 10

2.16   Powers of 10: patterns

2.17   Multiplying and dividing by powers of 10

2.18   Exponents and powers of zero patterns

2.19   Fractions as division by power of 10

2.20   Estimating decimal multiplication

2.21   Approximating dividing by decimals

2.22   How to test solutions to equations using substitution

2.23   How to solve one-step equations

2.24   Example of solving a one-step equation

2.25   How to solve equations of the form ax = b

2.26   How to solve equations of the form x/a = b

2.27   Combining like terms introduction

2.28   Combining like terms, but more complicated

2.29   Examples of simplifying expressions involving rational numbers

2.30   Factoring algebraic expressions using the distributive property

2.31   Example 1: Factor a linear binomial by taking a common factor

2.32   How to simplify an expression by combining like terms and the distributive property

2.33   Equivalent expressions with distribution and negative numbers

2.34   Why we do the same thing to both sides of equations

2.35   Solving two-step equations

2.36   Solving a more complicated equation

2.37   Example: two-step equation with numerator x

2.38   How to solve two-step equations with decimals and fractions

2.39   Example: two-step equations

2.40   Mistakes in solving equations

2.41   Introduction to proportional relationships

2.42   Identifying constant of proportionality graphically

2.43   Constant of proportionality from graph

2.44   Identifying the constant of proportionality from equation

2.45   Constant of proportionality from equation

2.46   Constant of proportionality from tables

2.47   Proportionality constant from table

2.48   Comparing constants of proportionality

2.49   Comparing proportionality constants

2.50   Interpret proportionality constants

2.51   Introduction to proportional relationships

2.52   Movie ticket proportionality

2.53   Banana proportionality

2.54   Identifying a proportional relationship from a table (example)

2.55   Proportional relationships example

2.57   Proportionality between side length and perimeter

2.58   Identifying proportional relationships from graphs

2.59   How to visually identify proportional relationships using graphs

2.60   Interpreting graphs of proportional relationships

2.61   Equations of proportional relationships

2.62   Writing an equation for a proportional relationship (example)

2.63   Writing proportional equations

2.64   Coordinate plane: word problem exercise

2.65   Quadrilateral on the coordinate plane

2.66   Area of parallelogram on coordinate plane

2.67   Finding coordinates of missing vertex example

2.68   Example of shapes on a coordinate plane

2.69   Dimensions of rectangle from coordinates example

2.70   Coordinates of rectangle example

2.71   Parallelogram on the coordinate plane

2.72   Find measure of vertical angles

2.73   Find measure of angles in a word problem

2.74   Find measure of complementary angles

2.75   Find measure of supplementary angles

2.76   Find measure of vertical angles