Windstream
Ojk's Precalculus Study Page: Polar Coordinates and Complex Numbers
An introduction to basic conversion formulas for polar coordinates and complex numbers. Includes several examples.
Curated OER
Displaying Triangular Numbers
Patterns of numbers don't come along every day, and so when they do, they need to be bragged about! The basic definition of triangular numbers begins this site which also lists many of the properties of these numbers, highlights the...
Math2
Math2: Fraction to Decimal Conversion
This tutorial features conversions of basic fractions in lowest terms and the decimal equivalents.
Math2
Math2.org: Trigonometry Tables
Three trig tables are provided for student and teacher reference. The first table lists the sine, cosine, tangent, secant, cosecant, and cotangent values of all whole-number angles from 0 to 90. The radian equivalent (to four decimals)...
Other
Mayan Math
A basic, illustrated description of the math system developed by the Mayans. Includes a paragraph comparing the Mayan system favorably with the Roman numeral system of the same time.
University of Cambridge
University of Cambridge: Nrich: What Are You Plotting?
This one page website is for practicing graphing ordered pairs. It lets you know right away if your choice is incorrect. At the bottom of the page their is a challenge with the solution just a click away.
Other
Zebra Mussel Page: Zebra Mussel Slide Show
Click through the whole slide show to find basic information on zebra mussels, how they live, the problems they can cause, and possible solutions.
Curated OER
[Bohr Model of Unununium]
A look at the transition metal unununium, which was renamed roentgenium in 2004. Includes basic information, including symbol, number, mass, melting and boiling points, and numbers of protons, electron, and neutrons.
Curated OER
Child Poverty Rates Across the States, 2005
A nice fact-sheet that gives the basic facts regarding children in American who are living at poverty levels or below. The numbers of children in poverty appear to be increasing to almost 13 million. The sheet identifies which ethnic...
Curated OER
Child Poverty Rates Across the States, 2005
A nice fact-sheet that gives the basic facts regarding children in American who are living at poverty levels or below. The numbers of children in poverty appear to be increasing to almost 13 million. The sheet identifies which ethnic...