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**Martin Golubitsky on Patterns, Symmetry, and Motion**

In our first use of video in a story, you can see highlights from Martin Golubitsky's lecture, â€œPatterns Patterns Everywhere,â€ delivered at the Carriage House on August 21. **Read More**

**MAA Video**

The MAA plans to post video clips from Carriage House Lectures and other events on its new YouTube channel. We welcome your suggestions on ways to use this new feature. Contact us at **editor@maa.org**.

**MAA NumberADay**

Every workday, MAAâ€™s new NumberADay blog spotlights a different number and some of its interesting properties. Your comments, suggestions, and additions are welcome.

**MAA MinuteMath**

Exercise your mind each day with a new problem selected from the American Mathematics Competition's bank of contest problems.

**Algebra Debate Rages in California**

Last July, California's Board of Education decided that by the time the state's students are in the eighth grade, they had better know the *x*'s and *y*'s of algebra. The reactions to this decision have been decidedly mixed. **Read More**

**College Calculus: What We Donâ€™t Know**

**From David Bressoud, President-Elect of the MAA**

I need your help. The MAA is putting together a proposal to NSF to fund a large-scale study of first-semester college calculus to be conducted during the 2010â€“11 academic year. The purpose is to determine what factors within the context of calculus contribute to attracting students to mathematics, encourage their persistence through calculus, and ensure that they have the mathematical preparation needed for their intended major. We are seeking to involve as many two- and four-year colleges and universities in this study as we can. In determining whether or not such a study will be feasible, we need a sense of how many individuals and departments might be interested in participating. Please take a moment to log onto **www.maa.org/Surveys/TakeSurvey.aspx?SurveyID=mlLK8m3** to let us know how important such a study would be to you and to indicate your level of willingness to participate in this study.** **You can find more information aboutthe study, what it entails and why are doing it, in **this monthâ€™s Launchings column**.

*LOCI*** - Mathematical Brooding over an Egg**

Dynamic geometry software brings algebra and geometry to life. AndrÃ© Heck discusses how mathematical techniques, digital images, and such software can be used to model the shape of an egg. **Read More**

*How Euler Did It*** by Ed Sandifer: PDEs of Fluids**

For his whole life Euler was interested in fluids and fluid mechanics, especially their applications to shipbuilding and navigation. Itâ€™s possible to summarize Euler's contribution to the subject by saying that he extended the principles described by Archimedes in *On floating bodies *from statics to dynamics, using calculus and partial differential equations. **Read More**

**Proof and Other Dilemmas: Mathematics and Philosophy**

Sixteen original essays provide a sampler of current topics in the philosophy of mathematics, from the nature of mathematical objects (How can one tell when one mathematical object is really the same as another?) to the boundaries between mathematics and other disciplines (What does one relegate to "applied" mathematics?). **Buy this Book**

**Membership Renewal**

2009 Membership renewals have been mailed. If you have not yet received yours, it should arrive in your mailbox very soon.

Publishing Date:

September, 2008