In This Issue
Technology Tools for Thinking and Reasoning about Probability
How Round Is Your Circle?
Interactivate: Assessments
10% Discount Through June 30, 2008, receive a 10% discount on Problems of the Week class, school, or district memberships and/or our new PD online courses!
Free Online Opportunities
For teachers of students in grades 35: Tools for Building Math Concepts
For teachers of students in grades 59: Technology Tools for Thinking and Reasoning about Probability
For teachers of students in grades 59: Using Technology and Problem Solving to Build Algebraic Reasoning
For all students: tPoWs


Technology Tools for Thinking and Reasoning about Probability
http://mathforum.org/nsdl_mathtech/online/prob.html
Applications are open until June 23 for our online workshop "Technology Tools for Thinking and Reasoning About Probability," targeted for 5th  9th grade teachers.
 Overview
 http://mathforum.org/nsdl_mathtech/online/overview.prob.html

 Dates
 http://mathforum.org/nsdl_mathtech/online/dates.prob.html

 Application
 http://mathforum.org/nsdl_mathtech/online/apply.prob.html
Currently the workshop fees are paid for participants by a grant from the National Science Foundation (NSF).
How Round Is Your Circle?
http://www.howround.com/
This website contains illustrations and videos to support the book "How Round Is Your circle? Where Engineering and Mathematics Meet" by John Bryant and Chris Sangwin.
Sections of the site:
 Falling apart
 How to draw a straight line
 Chebyshev's paradoxical mechanism
 Solids of constant width
 Balancing dominoes
 Rolling discs
 Approximately straight lines
 Other linkages
 How round is your circle
 Applications of nonroundness
 Amazing polyhedra
 Measuring area
Interactivate: Assessments
http://www.shodor.org/interactivate/assessments/
A set of Shodor's Interactivate activities now have a new feature so that the user may keep track of correct responses. To use these activities as "assessments" just select the "Keep Score" button on the Java applet page.
A number of these activities, the Connect Four type games and the Quizzes, also allow users to select difficulty levels and specific problem types, as well as set a time limit, allowing for further tailoring of the assessment to their abilities. The Connect Four type games are designed for two players whereas the other activities listed are designed for individual work.
Activities are organized under these topics:
 Number and Operations
 Geometry
 Algebra
 Modeling
 Discrete
 Other


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