http://mathforum.org/pd/algebraic/

The Math Forum is offering a community-facilitated professional development workshop titled "Using Technology and Problem Solving to Build Algebraic Reasoning," starting June 17 and running through July 29.

This workshop is free. Participants who successfully complete the workshop will receive a $25 coupon to apply to the cost of any of our online courses. Those participants can also receive 1.5 CEUs for a fee of $25 to cover administrative costs.

Registration is now open:

http://mathforum.org/pd/algebraic/apply.html

Math Forum Online PD Courses

http://mathforum.org/pd/

There's still time to register for any of our six-week asynchronous courses scheduled to start in June and July. The first registration deadline is Thursday, June 17, 5 p.m. Eastern, for the courses beginning that day, "PoW Class Membership: Resources & Strategies for Effective Implementation" and "The Math Forum's Problem Solving Process."

For details, including more course listings, see the link listed above.

http://vimeo.com/9953368

Cristóbal Vila gives us this short video inspired by numbers, geometry, and nature.

Vila's site has more information on Fibonacci, the Golden Ratio, and the Voronoi tessellation that makes up his dragonfly wings, as well as information about the making of the video:

http://www.etereaestudios.com/

http://www.teachersdomain.org/collection/k12/math/

Teachers' Domain is a digital library of multimedia resources for classroom use and independent study. Their media-rich tools are intended to help teachers present science concepts to students in high-impact, engaging, and interactive ways. Their math section is linked above.

Register for free to:

• view as many resources as you like
• save, sort, and share resources using folders and groups
• download resources to your desktop
• see correlations to your state standards

Teachers' Domain is a project of the WGBH Educational Foundation. Major funding for Teachers' Domain was provided by the National Science Foundation. Teachers' Domain is proud to be a Pathways portal to the National Science Digital Library.