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Do the Math, Online

Gsp_aWe’re frankly amazed by the scope of lessons and activities that math teachers create for their classes with Key Curriculum Press’s Geometer’s Sketchpad. The $40 program will soon be augmented with Key’s LessonLink, an online extension of the program that will contain 500 different lessons when the online service debuts in September. Aligned to popular textbooks and state math requirements, the lessons are aimed at grades 3 through 12 to help kids visually reinforce key spatial relationships and math concepts. Seeing really is believing, regardless of whether it’s showing 7-year olds that triangles have three sides or exploring trigonometry for high-schoolers. The service costs $119 per teacher for a 1-year school site license.

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Most of the mathematical notation in use today was not invented until the 16th century.Before that, mathematics was written out in words, a painstaking process that limited mathematical discovery.Euler (1707–1783) was responsible for many of the notations in use today. Modern notation makes mathematics much easier for the professional, but beginners often find it daunting. It is extremely compressed: a few symbols contain a great deal of information. Like musical notation, modern mathematical notation has a strict syntax (which to a limited extent varies from author to author and from discipline to discipline) and encodes information that would be difficult to write in any other way.

Modern notation makes mathematics much easier for the professional, but beginners often find it daunting.

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