Purple Math
Purplemath: Solving Quadratic Equations by Factoring
Demonstrates how to solve quadratics using factoring (that is/the Zero-Product Property). Provides worked examples/and warnings about common mistakes.
ClassFlow
Class Flow: Goats and Monsters
[Free Registration/Login Required] Students explore methods to measure lengths of squares and radius of a circle in trying to keep a goat from escaping.
Calculator Soup
Calculator Soup: Rhombus Calculator
Calculate certain variables of a rhombus depending on the inputs provided. Calculations include side lengths, corner angles, diagonals, height, perimeter, and area of a rhombus.
Calculator Soup
Calculator Soup: Square Calculator
Use this square calculator to find the side length, diagonal length, perimeter, or area of a geometric square. Given any 1 variable you can calculate the other 3 unknowns.
Calculator Soup
Calculator Soup: Regular Polygon Calculator
Use this calculator to calculate properties of a regular polygon. Enter any 1 variable plus the number of sides or the polygon name. Calculates side length, inradius, circumradius, area, and perimeter.
Calculator Soup
Calculator Soup: Parallelogram Calculator
Calculate certain variables of a parallelogram depending on the inputs provided. Calculations include side lengths, corner angles, diagonals, height, perimeter, and area of parallelograms.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Square
Find a quick, concise explanation of a square. An example is given and clearly explained.
Curated OER
Ic Teachers: Shapes Quadrilaterals
Are you looking for a very basic website that will explain the basic properties of a quadrilateral? Use this site to learn about the properties of a square, rhombus, rectangle, parallelogram, trapezoid, and kite. There are also some...
Curated OER
Working With Fractions Using Pattern Blocks
Students can download pattern block grid paper or cutouts for class activities. Included is an activity comparing the relationships of fractional parts called, "What's My Number?" Links available to other pattern block and fraction...
Curated OER
Math2.org: Areas, Volumes, Surface Areas
This personal site from Math2.org gives formulas for the area, volumes and surface areas of various shapes. Also provides diagrams.
Curated OER
Square Equation
MathWorld provides multiple definitions and formulas for the mathematical term, square.
Curated OER
Find Out Things About a Square
Webmath will calculate the side length, diagonal length, perimeter, area, or volume, given the side, perimeter, diagonal, or area. This site also displays formulas for a square.