MATH TOOLS NEWSLETTER - MARCH 29, 2010 - No. 85 ***T^3 International Conference Handouts http://mathforum.org/workshops/t3/atlanta/booth.html View and download the Math Forum's booth and session handouts from the recent Texas Instruments sponsored conference in Atlanta, Georgia. ***National Council of Supervisors of Mathematics (NCSM) http://mathforum.org/workshops/nctm2010/index.ncsm.html Visit us in San Diego, California, at the National Council of Supervisors of Mathematics 42nd Annual Conference, April 19-20, 2010. The Math Forum will have a Sponsor Table in the Display Area, and we'll also be presenting sessions. ***National Council of Teachers of Mathematics (NCTM) http://mathforum.org/workshops/nctm2010/ Visit us in San Diego, California, at the National Council of Teachers of Mathematics (NCTM) Annual Meeting, April 21-24, 2010. Stop by Booth 337 in the Exhibit Hall, and attend our sessions. \|/ As you browse the catalog, please take a moment to rate a resource, comment on it, review it -- join an existing conversation, or start a new discussion! ***FEATURED DISCUSSION Place Value Slider http://mathforum.org/mathtools/discuss.html?&do=m&thread=__hd_tool__g-5 Rod+1 announces, "The purpose of the application is to see what happens to a decimal number when divided or multiplied by 10 (or 100, 1000). Hope that you find it useful." ***FEATURED DISCUSSION Geometer's Sketchpad http://mathforum.org/mathtools/discuss.html?&do=m&thread=_____dev-81 mindspark asks, "Can anyone guide me how to use geometer's sketchpad and [its] various applications in topics related to properties of circles, quadrilaterals, similar triangles etc." ***FEATURED TPOW Technology PoW: Building a House http://mathforum.org/mathtools/tpow/22862/ Suzanne Alejandre Use a Java applet from the Freudenthal Institute to help find the largest number of cubes and the smallest number of cubes to make the house pictured in the problem. ***FEATURED TPOW Technology PoW: Traffic Jam http://mathforum.org/mathtools/tpow/17230/ Suzanne Alejandre There are eleven stepping stones and ten people. On the five lefthand stones, facing the center, stand five of the people. The other five people stand on the five righthand stones, also facing the center. The center stone is not occupied. Find the fewest number of moves for the ten people to end up on the opposite side from where they started. ***FEATURED TPOW Technology PoW: Counterfeit Coins http://mathforum.org/mathtools/tpow/17799/ Claire Mead Find the fewest number of weighings that will identify which of the nine coins is counterfeit. ***FEATURED TOOL Tool: Linear Transformer http://mathforum.org/mathtools/tool/93935/ Seeing Math by the Concord Consortium Highlight the meaning of each component of a linear function's symbolic expression with this tool that links symbolic and graphic representations of translating (dragging) a line vertically or horizontally, rotating it around a fixed point, or reflecting it around the x- or y-axis. ***FEATURED TOOL Tool: XP Math: Helicopter Shootdown - Tank Angle Measurement http://mathforum.org/mathtools/tool/93684/ T. L. Hui In this game, students set the angle at which to fire, attempting to get "close enough" to the helicopter to shoot it down. ***FEATURED TOOL Tool: System Solver http://mathforum.org/mathtools/tool/94148/ Seeing Math by the Concord Consortium Highlight how symbolic operations on a system of linear equations do (or do not) change the graphic or tabular representations of the system. 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 -- 29 March 2010