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Math Tools Newsletter
October 29, 2013 - No. 125
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Announcements

Powerful 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

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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.

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http://goodwin.drexel.edu/soe/
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