Introduction to the range: a simple measure of spread of a data set

Reflect a shape with tracing paper

Rotate a shape with tracing paper

How to find the perimeter of a square if you know its area

Estimate square roots by systematic trial

How to estimate square roots

How to graph a linear relation

How to make a table of values to represent a relation

Mean? Median? Or mode? How to choose which measure of central tendency best represents a data set

What is an outlier?

How to use a spreadsheet to calculate the mean, median and mode (Google Sheets)

Introduction to the range: a simple measure of spread of a data set

Introduction to the median

Calculate the mode from a bar graph

Calculate the mode from a frequency table (tally chart)

Introduction to the mode

Calculate the mean by finding the sum and dividing

Calculate the mean by sharing

Intuitive introduction to the mean with visual examples

Introducing measures of central tendency. Averages: the mean, the median, and the mode

How to use algebraic expressions to represent sentences

How to create a real-life situation to match an algebraic expression (with one operation)

How to create a real-life situation to match an algebraic expression (with two operations)

How to evaluate algebraic expressions

What’s the difference between expressions and equations?