Common Core: 8th Grade Math

Explore the foundational concepts of mathematics, including algebra, geometry, and data analysis, essential for 8th-grade students.

Linear Equations and FunctionsThe Pythagorean TheoremData Analysis and Statistics
Systems of Linear EquationsVolume of Cylinders, Cones, and SpheresTransformations and Congruence
Budgeting and Money MathMath in Sports and GamesEngineering and Design
Breaking Down Word ProblemsChecking Your Work
Linear Equations and...The Pythagorean Theo...Data Analysis and St...Systems of Linear Eq...Volume of Cylinders,...Transformations and ...Budgeting and Money ...Math in Sports and G...Engineering and Desi...Breaking Down Word P...Checking Your Work
Basic Concepts

Data Analysis and Statistics

Making Sense of Numbers

Data analysis is about collecting, organizing, and interpreting numbers to find patterns and answers. Statistics are the tools we use to describe and summarize data.

Key Concepts

  • Mean: The average. Add up all the numbers and divide by how many there are.
  • Median: The middle value when the numbers are in order.
  • Mode: The number that appears most often.

We also use graphs like bar charts, histograms, and scatter plots to show what the data means.

Everyday Uses

From sports scores to weather reports, data analysis helps us make decisions and predictions all the time!

Examples

  • A basketball player's points per game: 12, 14, 15, 15, 20. The mean is 15.2, the median is 15, and the mode is 15.

  • A survey of favorite ice cream flavors can be shown in a bar chart to see which is most popular.

In a Nutshell

Data analysis helps us find patterns and make predictions by organizing and summarizing numbers.

Key Terms

Mean
The average value in a set of numbers.
Median
The middle value in a list of numbers.
Mode
The most frequently occurring value in a set of numbers.
Next
Systems of Linear Equations