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CARLAZUZ, cnn STUDENT NEWS ANCHOR: You can beware the Ides of March, but there's nothing to fear about today's broadcast of cnn Student News. Reporting from the cnn Center, I'm Carl Azuz.

First Up: Health Care Push 

AZUZ: First up, President Obama postpones a trip overseas so he can stay in Washington and work on health care. He's called it the top priority for the U.S., and the president, along with Democratic leaders in Congress, all think it's important for him to stay in the U.S. to help rally support for the health care reform bill being considered by lawmakers. A House committee is scheduled to hold a vote on it today. Republicans are against President Obama's health care plan. Some want to scrap it and start over. Yesterday, on cnn's "State of the Union" with Candy Crowley, a top Republican in Congress talked about why a health care bill hasn't passed yet, and President Obama's top political adviser discussed why it might pass now.

REP.JOHN BOEHNER, (R) MINORITY LEADER: They tried to do this in June and July lastyear. If they had the votes, then it would be law. They tried to pass it inSeptember, October, November, December, January, February. Guess what? Theydon't have the votes. The American people don't want to take this step towardgovernment-run health insurance. It's a dangerous step, because we do have thebest health care system in the world.

DAVIDAXELROD, WHITE HOUSE SENIOR ADVISER: We're very optimistic about the outcome ofthis process. I think people have come to the realization that this is themoment, and if we don't act now, there'll be dire consequences for people allover this country.

Severe Weather

AZUZ:Heading up the coast to the northeastern U.S. now, where some areas arerecovering from severe storms over the weekend. And we mean huge storms. New York, New Jersey, Connecticut, Pennsylvania:all of them hit with heavy rains and hurricane force winds gusting over 70miles per hour. The storms knocked down trees, affected air travel, left morethan half a million people without power. One official said part of the reasonthe trees and utility poles fell over is because the ground was so wet from allthe snow that the region's been hit with this winter.

Theforce of nature also being felt on the other side of North America. An avalanche struck a snowmobile competition in British Columbia, Canada on Saturday. As of yesterdayafternoon, authorities said two people had been killed and 30 others wereinjured.

USNS Comfort

AZUZ:The USNS Comfort is on its way back home after spending nearly two monthshelping out earthquake victims in Haiti. The Navy hospital ship isexpected to arrive at its home pier in Baltimore, Maryland by the end of this week.Saturday, the Comfort pulled in to Norfolk, Virginia. It had been in the harbor of Port-au-Princesince January, a base for medical care for victims of the catastrophic quakethat hit Haiti.Staff on the Comfort performed more than 800 surgeries during the mission.There were times when 10 different operating rooms on the ship were all runningsimultaneously.

Female Football Coach 

AZUZ:Natalie Randolph, whom you see right here, is a science teacher at CalvinCoolidge Senior High in Washington, D.C. Science teacher, though, is not heronly title. Randolphis the school's new, head varsity football coach. She's been an assistant coachat other schools and she's played women's professional football. It isextremely rare for a high school football team to have a female coach, and somewomen's groups are calling this announcement historic. Randolph says history is not her focus.

NATALIERANDOLPH, COOLIDGE HIGH SCHOOL HEAD FOOTBALL COACH: Some people willundoubtedly want to focus on my gender, and they'll focus on the historicalmeaning of this day. But I would much rather focus on something that alldedicated coaches already know: I'm here to give these young men, these studentathletes, these wonderful students, the best opportunity and guidance tosucceed in the classroom, make good decisions at home, and perform well on thefootball field. And while I'm proud to be part of what this all means, beingfemale has nothing to do with it. I love football. I love football. I loveteaching. I love these kids.

Promo

AZUZ:cnnStudentNews.com. It is your favorite Web site; you know it! This week we'regoing to be highlighting some different parts of our site, like the Spotlightsection. You see it right here. If you want to learn more about the storiescovered in our show, head to the Spotlight section; that's where you will findmore info. It includes links to our free curriculum materials, and thatincludes our Women's History Month Learning Activities. That's what you'relooking at right now. They're totally free, like everything atcnnStudentNews.com. We also have links to special programming like the cnnChallenge and our weekly Extra Credit segment. So log on, see what's in theSpotlight today!

Shoutout

TOMEKAJONES, cnn STUDENT NEWS: Today's Shoutout goes out to Mr. Struna's U.S. history classes at StoneMiddle School in Melbourne, Florida!You may know that the first 3 digits of pi are 3.14. What is the fourth digit?Is it: A) 1, B) 3, C) 5 or D) 7? You've got three seconds -- GO! 3.1415926...and so on, is the more expanded number. That's your answer and that's yourShoutout!

Education the World 

AZUZ:Pi is irrational. Celebrating pi? Maybe a little odd. Celebrating pi by eatingpie? Now you're talking! That is just one way that people participate in PiDay. March 14th. 3.14. That's why. The holiday has been gaining steam recentlyas people around the world pay homage to pi on Pi Day. We don't know whetherSal Kahn did anything special yesterday. What we do know is that Mr. Kahn has agift for numbers, and he's sharing that gift with the world. Dan Simon explainshow.

(BEGINVIDEO)

DANSIMON, cnn CORRESPONDENT, SAN FRANCISCO: SalKhan lives in California outside of San Francisco. SaraShadid, halfway around the globe in Dubai.Their lives are interconnected, but Khan doesn't know it. This is a story abouthow one man is helping to educate the world, but has never seen any of hisstudents face-to-face.

Wheredoes this passion come from?

SALMANKHAN, YOUTUBE CALCULUS TEACHER: You know, I think I have always enjoyedteaching.

SIMON:It is about a man who gave up a lucrative career in Silicon Valley for what might look like a boring desk job.

KHAN:Right now, I'm cash-flow negative.

SIMON:But it was never about money. And with his drive and education, Khan could havemade millions. He was valedictorian of his high school with a perfect mathscore on the SAT. Then came MIT; Bill Clinton handing him his diploma. Next, Harvard Business School.He was lured into hedge funds and did well. But Khan, who has a wife and son tosupport, gave it up.

KHAN:A lot of people thought I was kind of crazy. Obviously, you know, when everywaking hour you have, you would sneak into a room and make math videos and putthem on YouTube, people kind of questioned, you know, what's up.

SIMON:Here is what is up: Khan's YouTube videos.

KHAN:Let's do a couple more examples and I think you might get it.

KHAN:They have been clicked on more than nine million times from users around theworld. The topics range from math to chemistry to economics.

SARASHADID, CALCULUS STUDENT: From every curriculum, we can use the videos. He'sreally helpful.

SIMON:One of his users: 19-year-old college sophomore Sara Shadid in Dubai. She says that thevideos made all of the difference in helping her conquer calculus. Thisgigantic virtual school originates from the smallest of places, from a tinyconverted closet inside Sal's master bedroom. This is where he is able to reachan estimated 80,000 knowledge-seeking users a month.

Itall started a few years ago when a cousin wanted some online math tutoring. Prettysoon, other relatives started asking for similar help. Suddenly, people hedidn't know started watching. It's now called the Khan Academy.The videos are short and simply produced; only his voice with a simple blackbackground and graphics.

KHAN:There are a lot of people who need help with their math, science, whatever. AndI think they find these YouTube videos as kind of the ideal nuggets to fill intheir gaps.

SIMON:Whatever you call him or his teachings, the success of his site has validatedthat decision to walk away from hedge funds. Dan Simon, cnn, San Francisco.

(ENDVIDEO)

River Going Green

AZUZ:The Chicago River is going green! It hasnothing to do with envy or the environment. This switch in shade is all aboutSt. Patrick's Day! Every year since 1962, Chicagoresidents have come out to watch the city's river get a dye job. Organizers saythe bright green color only lasts about five hours nowadays. When the eventstarted back in '62, the river stayed green for five days.

Before We Go

AZUZ:Before we go, we have another story about waiting for nature to run its course.

ROBERTROSIN, JEWELRY STORE OWNER: And you saw Soli go for the diamond. Gobbled it up.Tried to pull it out of his mouth. Couldn't get it. Gone.

AZUZ:This is Soli. And that diamond he gobbled up is worth $20,000! The vet said theonly thing to do was wait for the diamond to reappear. After three days of hand wringing and probably a lot of hand washing...

Goodbye

AZUZ:...Everything came out all right in the end. That story is just flush withpun-tential. But we will keep it clean. For cnn Student News, I'm Carl Azuz.