Category Archives: Measurement

Sydney Harbour Bridge Mathematics

Image Copyright 2012 by Passy’s World of Mathematics The Sydney Harbour bridge is a magnificent structure of mathematical genius, located in what has to be the world’s most beautiful city. In this lesson we look at the mathematics associated with … Continue reading

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Posted in Geometry, Graphs, Math in the Real World, Measurement, Parabolas, Sydney Harbour Bridge | Tagged , , , , , , , , , , , , , , , | 3 Comments

Measurement Formulas 1

Image Source: http://bridge.tm.mbs.ac.uk In this post we have used Adobe Fireworks to make mini posters of a number of Measurement Formulas for length, area, and volume. We have not included all shapes, and we have not covered Surface Area. We … Continue reading

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Posted in Area, Area Formulas, Area of Simple Shapes, Measurement, Measurement Formulas, Online Math Resources, Perimeter, Volume | Tagged , , , , , , , , , | 16 Comments

Composite Areas

Image Source: http://www.theplancollection.com In the real world, objects are often not just simple rectangles and triangles. Instead they are created using a variety of geometric shapes. Image Source: http://img210.imageshack.us We call these objects “composite shapes”, because they are composed of … Continue reading

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Posted in Area, Area of Composite Shapes, Measurement, Online Math Lessons | 10 Comments

Area of a Circle

Image Source: http://www.donaldschwab.com UFOs are amazing circular shapes, but wouldn’t they have to fly spinning around very fast like a frisbee ? Aliens obviously don’t get dizzy like us humans do! Let’s start with our favorite music video about circles. … Continue reading

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Posted in Area, Area of Circle, Circles, Measurement, Online Math Lessons, Perimeter | 11 Comments

Circumference

Image Source: http://upload.wikimedia.org Drums are one of the most marvelous use of circles that we’ve ever heard of here at Passy World. So let’s get right into the beat of the Circle with a catchy Circles Song from Learning Upgrade … Continue reading

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Posted in Circles, Circumference, Measurement, Online Math Lessons, Perimeter | 14 Comments