The Secrets of Staying Dry While Biking

May is national bike to work month and next week is bike to work week. Here in Seattle a big concern is staying dry while bike commuting or during recreational runs.

Now there are two ways to stay dry while biking. The first is shown in the image above--mounting an umbrella on your bike. Perhaps this would work if you went REALLY slowly and there was little wind, but for most of us another solution is needed...and I can offer it. Use the weather radar!

I commute by bike every day roughly five miles each way. Ever since a weather radar was installed in western Washington (early 1990s), I rarely get seriously wet. I mean...this has really changed my life.

You all have seen weather radar images on TV or the web (see one below).


Weather radar basically shows you where it is raining. The units shown on the image are actually something called reflectivity, the amount of the radar signal scattered back to the radar. The higher the reflectivity, generally the heavier the rain. A rough scaling is 5-10 (gray above) for very, very light rain (drizzle), pinks (15-25) for light rain, greens (30-35) for moderate rain, yellows for heavy rain (40-45), and you don't want to know about the reds and blues. I will bike in greys and pinks, particularly if I am wearing a Gortex (or similar type of material) jacket. I avoid greens and will take the bus with yellow and reds. The National Weather Service radars provide a new image every 6 minutes. And you can view both single time and animated radar imagery on the web, using a smart phone app, on an internet-equipped cell phone, or on tv.

Here is an example of a radar animation:

http://www.atmos.washington.edu/~ovens/loops/wxloop.cgi?atx_bref1_archive+start+2007022603+end+2007022612+interval+

An interesting and critical fact about rain is that it is rarely uniform. There are heavy areas and light areas and breaks. By viewing radar animations you can spot the light areas, or make a good estimate when one will be at your location. So if you have some flexibility of when you bike, delaying or advancing your trip by a 10-15 minutes, you can nearly always avoid the real heavy stuff or secure a dry ride even on a supposedly rainy day. The more flexibility you have the better your chance of staying dry.

And radar helps in another way. If you are just looking for recreation, the radar can tell you where it is dry now and will continue to be dry for a while.

Trust me....using weather radar can revolutionize your biking life.

So where do you go to get this information? Lots of web sites offer great radar access.
Some examples for Seattle and vicinity:

Seattle NWS office site:
http://radar.weather.gov/radar.php?rid=atx&product=N0R&overlay=11101111&loop=no

The UW: (click on radar loops)
http://www.atmos.washington.edu/~ovens/loops/

All the major TV stations in town have radar links. And many more.

For those in Seattle I will be giving a talk on this topic:

"You Can Avoid the Rain! Weather Tips for Biking" on May 20th,12:00pm-1:00pm,Gerberding Hall room 142, on the UW campus

Happy biking.

Educational Disaster In Issaquah

Normally, I talk about weather disasters, but this time I have an educational disaster: Math Education in Issaquah, Washington

Issaquah, Washington is a wealthy, upscale area, with many employed at the high-tech industries of the East Side, like Microsoft and hundreds of biotech and software firms. Y ou would expect that the local school district would provide an education that would allow its students to be prepared for the technological society of the future. But the reality is that Issaquah has adopted very poor math textbooks and curriculum at all levels.
Consider the recent vote by the Issaquah School Board to adopt the Discovering Math series by Key Curriculum Press for its high schools. These books were found mathematically unsound by the Washington State Board of Education review team comprised of nationally known mathematicians. The Discovering Math series follows the failed discovery approach to learning in which students are supposed to discover principles on their own, group learning is pushed, direct instruction is not stressed, and students do not practice what they learn to mastery. Discovery math is in vogue in education schools and among their graduates in administration and the class room. (Some day I need to blog about the failures of American education schools, but I will leave that for now). The Washington Superintendent of Public Instruction's recommendation for high school math was Holt, based on the inferior rankings of Discovering.
But it gets worse than that. Bellevue Schools tested Discovering Math and Holt and found that the performance of classes using Discovering was inferior (similar demographics too!). Bellevue has wisely adopted Holt. Issaquah gave parents no voice in the selection process, with only teachers, and mainly young ones at that, having a place on the adoption committee. Strangely, the adoption committee originally voted 8 to 6 for Holt but then mysteriously switched to 14-0 for Discovering, with no information in their minutes of why the shift occurred. At a School Board meeting it was revealed that the rubric created to evaluate the two curricula was not even filled in. The whole business smells bad.

A major issue during this adoption was the activism for Discovering of the local Superintendent of the Issaquah School District, Steve Rasmussen, who clearly had an agenda to push Discovering--see his letter to the community before the vote-http://www.issaquah.wednet.edu/documents/math/HSmath/communitymath.pdf). This letter is full of incorrect information.
So you had a school administration that was pushing discovery math, parents that were marginalized and pushed to the side, and a process that was like an unstoppable express train. And the kids are the ones that will pay for this--another generation of Issaquah students will be lost to an inferior education. Issaquah parents should be furious with this adoption--perhaps if enough complain the ordered books can be returned. A group of parents considered filing a lawsuit, but felt so intimidated that they held off (which says something in itself).
And if you think things couldn't be worse in Issaquah consider the math curriculum used in middle and elementary schools:
Everyday Math for elementary, one of the worst discovering math curriculum for K-5, and CMP2, a very weak discovering math curriculum for middle school.
There is an extensive literature on the failures of the above curricula. Check out http://nychold.com/em.html for a large collection dealing with Everyday Math.

Math tutoring is a major growth industry in Issaquah, take a look at the many private tutoring offices near downtown Issaquah alone!

Math tutoring is a major growth industry in Issaquah
(locations near downtown Issaquah shown above)

Anyway, it is hard to believe that such an educational disaster can occur in such a well-heeled district with highly educated parents, but that is the unfortunate situation. There is a reason that foreign engineers and scientists are filling the ranks of American high-tech companies and universities: districts like Issaquah are insuring that their children will be unprepared for the future.

Other districts, like Bellevue, Shoreline, and Lake Washington, have or will make the switch to quality math programs, making the stance of Issaquah schools perplexing and disturbing. If you are an Issaquah parent, please complain to your school board members and the administration. Contact the media. Only if the parents put enormous pressure will the district reconsider. And, of course, there is the legal route.