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Race has. >> reporter: a free, nonprofit site that highlights what works in schools with blogs, articles and videos. >> we're looking at ways for students to deepen their knowledge and work with their own knowledge so that they can become the authors of their own learning. >> so often you find is that people know that their education system could be better, but they're not always sure exactly in what way. so what we've tried to do is to shine a spotlight on innovation and show people with the power of video what it looks like. and how it's taking place. >> reporter: one of the biggest challeng...

>> education is the single most important job that the human race have. >> reporter: a free non-profit site highlights what works in schools with blog, articles and videos. >> we're looking for ways for students to deepen their knowledge and work with their own knowledge so they can become the authors of their own learning. >> so often you find people know their education system could be better, but they're not always sure exactly in what way. what we've tried to do with edutopia.org is to shine a spotlight on education and show people with the power of video what it looks like and how it's ta...

-- captions by vitac -- www.vitac.com hello. you're in the cnn newsroom this saturday, may 14th, i'm fredricka whitfield. saving two of louisiana's biggest cities at the sacrifice of flooding homes and farmland. that's what will likely happen as the u.s. army corps of engineers opens the morganza spillway beginning an hour from now. while opening the gaelts would slowly divert floodwaters from baton rouge and new orleans, areas in yellow could get up to 20 feet of water, in green up to 15 feet. the morganza spillway hasn't been opened in nearly 40 years. but for the u.s. army corps...

biggest cities in louisiana. but it means tiny communities could soon be under many feet of water. this is what it looked like in 1973. the one and only time the morganza spillway had to be opened. there's no guarantee it will even work. the mississippi river is already dangerously high in new orleans. the army corps of engineers is hoping that by diverting water through two spillways will lower the river level and spare the city. so far, the corps says opening the morganza spillway appears to be having the desired effect. the biggest test is still days away, the highest water, hundr...

Race has. >> a free, nonprofit site that highlights what works in schools with blogs, articles and videos. >> we're looking at ways for students to deepen their knowledge and work with their own knowledge. >> so often you find that people know that their education system could be better, but they're not always sure exactly in what way. so what we've tried to do is shine a spotlight on innovation in real schools happening right now around the country, sometimes around the world, and show people with the power of video what it looks like. and not just show them what it looks like but how it's ta...