MATH TOOLS NEWSLETTER - JANUARY 4, 2008 - No. 59 ***FREE ONLINE OPPORTUNITY FOR TEACHERS OF GRADES 5-9 Using Technology and Problem Solving to Build Algebraic Reasoning http://mathforum.org/nsdl_mathtech/online/ The Math Forum has been hosting a series of online workshops for teachers who work with students in 5th through 9th grade. Teachers are exploring how technology can help students build algebraic reasoning as they model and solve contextualized problems using a variety of representations, including graphs, tables, equations, and words. Each participant's $100 workshop fee is being covered by a National Science Foundation (NSF) grant, affording participants the convenience of anytime, anywhere online learning. The next workshop will be offered January 14 - February 23. Certificates of completion will be available for participants finishing the six weeks of interaction. For an overview with additional detalis, visit: http://mathforum.org/nsdl_mathtech/online/overview.html Deadline for applications is Monday, January 7, 2008. http://mathforum.org/nsdl_mathtech/online/apply.html \|/ As you browse the catalog, please take a moment to rate a resource, comment on it, review it -- or start a new discussion! ***FEATURED TPOW TI-PoW: Chirp! Chirp! Annie Fetter, Heidi Rudolph http://mathforum.org/mathtools/tpow/35755/ Use your TI-Nspire to find the temperature when a cricket chirps a certain number of times a minute. ***FEATURED TPOW TI-PoW: Sam and Teri's Bank Accounts Terry Trotter, Steve Weimar, and Heidi Rudolph http://mathforum.org/mathtools/tpow/35757/ Use your TI-Nspire to consider this scenario and question: Sam and Teri have bank accounts. Sam always withdraws money; Teri always saves it. When will they have equal balances -- or will they ever? ***FEATURED TOOL Tool: Volume Inside a Cube - Math Open Reference John Page http://mathforum.org/mathtools/tool/35664/ An interactive applet and associated web page that demonstrate the volume of a cube. A cube is shown where the edge length can be changed by dragging. The volume is continuously recalculated as you drag, and a unit cube grid is superimposed on the cube to illustrate the volume graphically. The calculations can be turned off for class discussion. ***FEATURED TOOL Tool: Rational Equations Visualizer Dennis Sullivan http://mathforum.org/mathtools/tool/35277/ Explore how the parameters in a rational equation affect the graph of the equation. Dynamically change the parameters and immediately see how the graph changes. Undefined points are clearly visible. Try to change the parameters so the graph of the equation matches a given graph. ***FEATURED TOOL Tool: Archimy.com - 3D Graphs Online Denis Kozyr http://mathforum.org/mathtools/tool/35533/ Archimy.com is a service for drawing the graphs of all kinds of functions. ***FEATURED DISCUSSION Resource Suggestions for Sketchpad http://mathforum.org/mathtools/discuss.html?&do=m&thread=g__hp_lesson__g-2 JimS writes, "I would appreciate any suggestions of sources for Sketchpad lessons that incorporate a Smartboard." ***FEATURED DISCUSSION technology http://mathforum.org/mathtools/discuss.html?&do=m&thread=___tool__g-13 kristinams explains, "I am trying to integrate some new technology into my classroom, I teach HS Algebra. I would like to start a blog or have students create math videos that I could post on a webpage. Has anyone done a project like this?" 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 -- 4 January 2008