Math Tools Newsletter October 29, 2013 - No. 125 ~~~~~~~~~~~~~~~~~~~~~~~~~~ AnnouncementsPowerful Problem Solving: Activities for Sense-Making with the Mathematical Practices Watch our freely accessible YouTube clips of Annie, Max, Steve, Suzanne, and Valerie as they use the Problems of the Week (PoWs) and the many activities from Powerful Problem Solving in Grade 3 - 8 classrooms. http://mathforum.org/pps/video.html ~~~~~~~~~~~~~~~~~~~~~~~~~~ Featured Resources 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. Tool: Just Kids Games: Making Change - The Center For Advanced Technologies Practice making change for customers' purchases by sliding coins out of the cash register and on to the counter. Tool: Number Line Arithmetic - National Library of Virtual Manipulatives (Utah State University) This virtual manipulative can be used to depict whole number addition, subtraction, multiplication and division operations carried out on a number line. Tool: Function Machines - Duncan Keith Test yourself on basic function machines with these ten questions. Tool: Balance applets - Pavel Safronov A series of balance applets of increasing difficulty. Tool: All About Ratios: A Learning Tool Built with Flash - Cynthia Lanius and Kristin Henry The "All About Ratios" activities are designed to introduce ratios in a concept-building way. Activities include both practice exercises and a quiz. Tool: Eyeballing Game - Matthias Wandel The user is given 7 tasks. Each involves using estimation to achieve a geometric task. Two samples are: moving a ray so that it is an angle bisector, and moving a vertex of a quadrilateral so that it becomes a parallelogram. The score for each task is based on how close one gets to the correct answer. The starting positions for each task are randomized each time one plays. Tool: Create a Graph - National Center for Education Statistics From the NCES Students' Classroom: fill in the data, and this tool will create a graph (bar, line, area, pie, or xy). Includes sample data. Tool: I See Graphs - Robin Manker This downloadable software designed by a teacher generates problems suitable for courses in Algebra I, Algebra II, Trigonometry, Probability and Statistics, and 3D graphing. It also creates graphs for students to identify with function notation or exact formula; and illustrates 3D graphing techniques dynamically, with function slider graphs to visualize the effects of parameters. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Quick Links... Math Tools - http://mathforum.org/mathtools/ Newsletter Archive - http://mathforum.org/mathtools/newsletter/ Math Topics - http://mathforum.org/mathtools/sitemap.html Discussions - http://mathforum.org/mathtools/discuss.html Community - http://mathforum.org/community/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The Math Forum @ Drexel is a research and educational enterprise of the Drexel University School of Education http://goodwin.drexel.edu/soe/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~