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MIDDLE SCHOOL

About Math

Algebra
   equations
   factoring expressions
   graphing equations

Arithmetic
   division
   exponents
   factorials
   factoring numbers
   fractions/percents
   logarithms

Definitions

Geometry
   2-dimensional
     conic sections/
       circles
     triangles/polygons
   3D and higher
     polyhedra

History/Biography
Logic

Measurement
   calendars/
     dates/time
   temperature
   terms/units

Number Sense
   factoring numbers
   negative numbers
   pi
   prime numbers
   square roots

Probability
Puzzles
Ratio/Proportion
Statistics
Word Problems

Browse Middle School Statistics
Stars indicate particularly interesting answers or good places to begin browsing.

Selected answers to common questions:
    Graphs: bar graph, histogram, pictogram.
    Mean, median, mode, range.
    Statistics glossaries.
    Weighted averages.



What is a Median? [03/03/1998]
A definition of median, and four examples of calculating medians.

What is the Meaning of "Average"? [03/28/2007]
An interesting conversation that defines the general concepts of average and central tendency, and looks at the usefulness of such measures both in representing the data and for making predictions about future events.

When Percentage Calculations are Inappropriate [02/11/2003]
How do I best calculate the percentage of goal when at least one of the numbers is a negative number?

Which is the Best Description? [03/25/2001]
Which best describes the number of times "Popular Song" was played on the radio per day: the range, the median, the mode, or the mean?

Why Learn about Probability and Statistics? [04/17/2002]
Why is probability so important to learn? When will we use it in the real world?

Why Take Averages in Experiments? [05/04/2003]
I have to measure the time it takes from when I release a toy car until it reaches the bottom of a 6-foot ramp.

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