MATH TOOLS NEWSLETTER - September 17, 2010 - No. 91 ***The Math Forum on Twitter http://twitter.com/themathforum Follow the Math Forum on Twitter! Get updates on Forum happenings, hot topics, and cool teaching ideas. ***If you are a member of our Problems of the Week community, check out our four separate accounts for the four services: Pre-Algebra: http://twitter.com/mathforumprealg Math Fundamentals: http://twitter.com/mathforumfunpow Algebra: http://twitter.com/mathforumalgpow Geometry: http://twitter.com/mathforumgeopow ***Free Orientation Sessions http://mathforum.org/pd/#session Session activities and discussions are designed to help you learn about the many features of our services. Registration (free) is open now for self-paced sessions focusing on: Math Tools [session date: Oct 7 - 13] http://mathforum.org/pd/orientation_mathtools/ tPoWs [session date: Oct 14 - 20] http://mathforum.org/pd/orientation_tpow/ Problems of the Week [session date: Sept 30 - Oct 6] http://mathforum.org/pd/orientation_pow/ \|/ Math Tools now has over 5,000 people participating in discussions about our digital library community! So as you browse the catalog, take a moment to rate a resource, comment on it, review it -- join an existing conversation, or start a new discussion! ***FEATURED DISCUSSION Three trig functions added! http://mathforum.org/mathtools/discuss.html?&do=m&thread=___disc_86519_g-1 JohnPage informs us, "I just saw the review of this tool and noted the comment that the trig functions sec, csc and cot were missing. In response to that I went ahead and added them." ***FEATURED TECHNOLOGY POW Technology PoW: Math at the Snack Bar http://mathforum.org/mathtools/tpow/99997/ Suzanne Alejandre; applet by Alexander Bogomolny See how the distributive property can help visualize shopping purchases. NOTE: A free login is required. Sign up using the link on the login page, or with your existing KenKen or Problems of the Week login. ***FEATURED TECHNOLOGY POW Technology PoW: Runners http://mathforum.org/mathtools/tpow/17540/ Claire Mead Tell how a runner's step size predicts the time it takes to run from the building to the tree. A link to a Java applet from NCTM's Electronic Examples, Principles and Standards for School Mathematics is provided to help students think about the problem. NOTE: A free login is required. Sign up using the link on the login page, or with your existing KenKen or Problems of the Week login. ***FEATURED TOOL Tool: Interactive Circle http://mathforum.org/mathtools/tool/100167/ Jamie Tubbs Use the interactive circle to create a radius, diameter, tangent, chord, sector, inscribed angle, central angle, segment, arc, semicircle, or intersecting chords. Designed for projection on an interactive whiteboard. ***FEATURED TOOL Tool: Guess My Number 1-100 http://mathforum.org/mathtools/tool/99613/ BCC/Netmedia A guessing game to find out what number the computer is thinking of. The activity can be used to develop number recognition and sequencing up to 100. ***FEATURED TOOL Tool: Difference between Two Times http://mathforum.org/mathtools/tool/99611/ BCC/Netmedia Practice calculating how long a bus trip takes from its timetable, and other differences between two times. ***FEATURED TOOL Tool: Decimals Whiteboard Teacher Pack http://mathforum.org/mathtools/tool/99893/ Jamie Tubbs Teach your students the basics of decimals with this set of interactive whiteboard mini-movies. Use the animations to represent commonly used decimals like tenths and hundredths; generate equivalent forms of decimals; and compare and order decimals. The animations are free, but available for purchase are a teacher's guide and printable worksheets. ***FEATURED TOOL Tool: Panda Geometry Problem -- the traditional way http://mathforum.org/mathtools/tool/99198/ Faster-Than-Light Math! This 3-D animated video walks through a conventional approach to solving a geometry problem. Log in to watch an alternate method. ***FEATURED TOOL Tool: Paycheck http://mathforum.org/mathtools/tool/75657/ Michael Backus Students calculate net income and discover how much money they pay in taxes and for benefits in the process. CHECK OUT THE MATH TOOLS SITE: Math Tools http://mathforum.org/mathtools/ Register http://mathforum.org/mathtools/register.html Discussions http://mathforum.org/mathtools/discuss.html Research Area http://mathforum.org/mathtools/research/ Developers Area http://mathforum.org/mathtools/developers/ Newsletter Archive http://mathforum.org/mathtools/newsletter/ \`. .--------------.___________) \ |//////////////|___________[ ] `--------------' ) ( '-' The Math Forum @ Drexel -- 17 September 2010