MATH TOOLS NEWSLETTER - May 7, 2005 - No. 26 Key Curriculum Press is now offering online courses for learning how to use The Geometer's Sketchpad (GSP) to investigate and demonstrate mathematics concepts. Register for one of the summer sessions that will start on June 13: http://www.keypress.com/pdc/gsponline/ The Math Tools Technology Problem of the Week (tPoW) "Types of Triangles" demonstrates one way to teach and learn with GSP: http://mathforum.org/tpow/ Technology problems (tPoWs) are modeled on the Math Forum's Problems of the Week, with the additional feature that the problems take advantage of an interactive mathematics tool. After students submit their solutions, they have the opportunity to view hints and answer checks to help them think more about the problem and revise their work. ***FEATURED TPOW Technology PoW: Squares in a Square http://mathforum.org/mathtools/tpow/18047/ If you have a checkerboard that is 50x50 with small squares inside it, how many squares will there be all together? Students use a Java applet from the Freudenthal Institute to think about the question. Using a spreadsheet to find the total number of squares is encouraged. ***FEATURED TPOW Technology PoW: Miranda and the Rookie http://mathforum.org/mathtools/tpow/18197/ Use a spreadsheet to compare salaries of the star basketball player and the rookie. ***FEATURED DISCUSSION How technology can enhance math learning http://mathforum.org/mathtools/discuss.html?&do=m&thread=_____g-62 Cynthia writes, "I'd like to hear about how technology SUPPORTS learning in your class." ***FEATURED DISCUSSION Is a rhombus a kite? http://mathforum.org/mathtools/discuss.html?&do=m&thread=g_____g-9 Susan asks, "Is a rhombus a kite? Is a square a kite? Any ideas? Has it changed over the years, or is it just me?" ***FEATURED DISCUSSION Fraction Track Revisited http://mathforum.org/mathtools/discuss.html?&do=m&thread=___disc_986_g-2 Ihor reports, "I'm working on a fractions project with 6th grade teachers and students. I tried the Fraction Track game and found it was too difficult/confusing for many of the students." ***FEATURED DISCUSSION What is a binomial? http://mathforum.org/mathtools/discuss.html?&do=m&thread=a___lesson__g-1 Eric Goolish notes, "Recently, I had a 60 minute discussion with fellow high school teachers about what is a binomial?" ***FEATURED TOOL Tool: Jude e-Clock Nathan Myers http://mathforum.org/mathtools/tool/17894/ Virtual manipulative for teaching various concepts in telling time. Features of this multi-faceted tool include the ability to change the clock's face (two different primary faces, Roman numerals, 12-3-6-9, and graduated markings only), display of time in digital format, display of time in word format ("quarter past three", "27 minutes until eight", etc.), as well as the ability to practice concepts of elapsed time by setting a "start time" clock and an "end time" clock. Buttons and hands on clocks are color-coded to help support new or young learners. ***FEATURED TOOL Tool: Areas of Regular Polygons and Circles Key Curriculum Press http://mathforum.org/mathtools/tool/17836/ Students manipulate the number of sides in a regular polygon, develop a formula relating the area and perimeter of the polygon, and use their result to develop a formula relating the circumference and area of a circle. The link to the tool itself is to a zip file that contains both the sketch and a pdf file of the corresponding activity. The combined sketch and pdf activity file are also available in .sit format. This is a free sample activity from "Exploring Geometry with the Geometer's Sketchpad." ***FEATURED TOOL Tool: Random Triangles for Discovering Geometry Paul Myers http://mathforum.org/mathtools/tool/18063/ Paul Myers created this demonstration as he was designing a Fathom project for Discovering Geometry. It shows when a triangle can be formed from the pieces after two random cuts are made in a 20-centimeter segment. 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 -- 7 May 2005