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Multiplying Fractions and Mixed Numbers

Multiplying Fractions If your friend has one-quarter of a pie, and she gives you half, how much of the pie do you have? Or, to put it another way, what's half of one-quarter? Or, to put it into…

Dividing Fractions

If your friend has half a pie, how many quarter-pies are in that half? Or, to put this into mathematical notation:1/2 ÷ 1/4 = ? To get the answer, flip the divisor (the second fraction) over, and…

Geometry: Taxi-Cab Geometry

Taxi-Cab GeometryGeometryWhose Geometry Is It Anyway?Non-Euclidean GeometryHyperbolic Geometry: Saddle Up!Spherical GeometryTaxi-Cab GeometryMax GeometryHow Many Shapes Can a Circle Have? Taxi-cab…

Geometry: Symmetry

SymmetryGeometryTransformationsIsometriesDilationsSymmetry Just what is symmetry? Symmetry is one of those things that you can recognize but cannot put into words. Many words or phrases have a…

Algebra: Investigating Variation

Investigating Variation Algebra Rational Equations and Inequalities Solving Rational Equations Proportions and Cross Multiplying Investigating Variation Solving Rational Inequalities There…

Algebra: Solving Basic Equations

Solving Basic Equations Algebra Solving Basic Equations Maintaining a Balance Equations with Multiple Steps Absolute Value Equations Equations with Multiple Variables If algebraic…

Geometry: Dilations

DilationsGeometryTransformationsIsometriesDilationsSymmetry A dilation is a transformation that changes the length of all line segments by the same proportion. A dilation does not change the shape…

Geometry: Putting Quadrilaterals in the Forefront

Putting Quadrilaterals in the ForefrontGeometryPutting Quadrilaterals in the ForefrontProperties of All QuadrilateralsProperties of TrapezoidsLet's All Fly a Kite!Properties of ParallelogramsThe Most…

Algebra: Encountering Expressions

Encountering Expressions Algebra Encountering Expressions Introducing Variables Translating Words into Math Behold the Power of Exponents Living Large with Scientific Notation Dastardly…

Geometry: Proving Relationships Between Lines

Proving Relationships Between LinesGeometryProving Relationships Between LinesProofs Involving Perpendicular LinesLet's Get ParallelProofs About Alternate AnglesParallel Lines and Supplementary…