- Algebra (Middle School Grades) - Learn about direct and indirect variation, inequalities and negative numbers, positive/negative integer rules, and more.
- Ask Dr. Math - Middle School Grades - Search through different math topics like geometry, ratio, word problems and more.
- Charts and Tables - Make charts and access tables with Bureau of Labor Statistics data.
- Economy at a Glance - Economic information for metropolitan areas, states, and the nation as a whole.
- Inflation Calculator - Uses the average Consumer Price Index for a given calendar year. Data represents changes in prices of all goods and services purchased by urban households.
- Isosceles and Equilateral Triangles - Learn about each type of triangle and how they are different.
- Measurement (Middle School Grades) - Ask Dr. Math - Find out about time, temperature, and units of measurement.
- Meters and Liters: Converting to the Metric System of Measurements - This system is based on a unit of measurement called the meter, which gets its name from the Greek word metron, "a measure."
- Word Problems - Ask Dr. Math - Browse through a list of different word problems and learn how to break down the problem and solve it.