Anya Kamenetz

In Glacier Bay, Alaska, mountains rush up farther and faster from the shoreline than almost anywhere else on the planet. Humpback whales, halibut and sea otters ply the waters that lap rocky, pine-crowned islands, and you can stick a bare hook in the water and pull out dinner about as fast as it takes to say so.

This is the place 31-year-old Laura Marcus chose for her Arete Project. Or just maybe, this place chose her.

School shootings like the recent one in Santa Clarita, Calif., have focused the nation's attention on school safety. And schools across the U.S. are wrestling with how to prevent themselves from becoming the site of the next tragedy.

Just over half of children in the United States — 53 percent — now own a smartphone by the age of 11. And 84 percent of teenagers now have their own phones, immersing themselves in a rich and complex world of experiences that adults sometimes need a lot of decoding to understand.

These stats come from a new, nationally representative survey of media use among children ages 8-18, by Common Sense Media, which has been tracking this since 2003.

If you want to get students fired up about climate change, poop is a good place to start.

A federal judge has fined U.S. Education Secretary Betsy DeVos for contempt of court for failing to stop collecting loans from former students of a now-defunct chain of for-profit colleges.

The court ruling orders the Education Department to pay a $100,000 fine. The judge said Devos had violated an order to stop collecting loans owed by students who had been defrauded by Corinthian Colleges.

In a photo taken last March, a teenage boy is sitting at his desk with a plastic pellet gun that looks a lot like an AR-15. The airsoft rifle is propped up on the arm of a chair, pointing at the ceiling, and the boy, Eric, is looking at the camera. We're not using his last name to protect his privacy.

Eric's friend took the picture. At the time, Eric says, he didn't realize his friend had captioned the photo "Don't come to school Monday" and had sent it to others on Snapchat.

More teens and young adults — particularly girls and young women — are reporting being depressed and anxious, compared with comparable numbers from the mid-2000s. Suicides are up too in that time period, most noticeably among girls ages 10 to 14.

These trends are the basis of a scientific controversy.

One hypothesis that has gotten a lot of traction is that with nearly every teen using a smartphone these days, digital media must take some of the blame for worsening mental health.

On a summer afternoon, Ciara Whelan, a teacher at a New York City elementary school, knocks on the apartment door of one of her students in the Bronx.

Melissa, the student's mother, welcomes her guest with a huge platter of snacks — shrimp rolls and dill dip. Melissa explains that this past school year — third grade — her daughter, Sapphira, fell behind in her reading because she got a phone and spent too much time messaging her friends on apps like TikTok. (We're not using their last names to protect the student's privacy.)

Anya Kamenetz is an NPR education correspondent, a host of Life Kit and author of The Art Of Screen Time. This story draws from the book and recent reporting for Life Kit's guide, Parenting: Screen Time And Your Family.

Elise Potts picked up her 17-month-old daughter, Eliza, from daycare recently. When they got home they were greeted by a strange scene.

Are humans born kind?

We both assumed, as parents of young children, that kindness is just something our kids would pick up by osmosis, because we love them. It's a common assumption.

"We often just expect people to be kind without talking about it," says Jennifer Kotler, vice president of research and evaluation at Sesame Workshop. "We think, 'Oh, you're a good kid. You're gonna be kind.' "

Now, that's not entirely wrong. Humans are certainly born with a capacity to be kind — even leaning toward kindness in many situations.

Kyle Kashuv, one of the survivors of the mass school shooting in Parkland, Fla., applied and was accepted into Harvard University.

His acceptance, however, was rescinded after Harvard discovered that Kashuv, now 18, used racial slurs in texts, Skype conversations and Google documents when he was 16.

Here's why people are talking about Kashuv's case.

A Parkland survivor turned activist

ARI SHAPIRO, HOST:

NPR/Ipsos conducted a national poll recently and found that more than 8 in 10 teachers — and a similar majority of parents — support teaching kids about climate change.

But in reality, it's not always happening: Fewer than half of K-12 teachers told us that they talk about climate change with their children or students. Again, parents were about the same.

Massachusetts Sen. Elizabeth Warren has issued another big policy proposal as part of her campaign for the Democratic presidential nomination in 2020. This one concerns higher education.

Warren proposes that the federal government write off hundreds of billions of dollars in existing student loan debt.

More than 80% of parents in the U.S. support the teaching of climate change. And that support crosses political divides, according to the results of an exclusive new NPR/Ipsos poll: Whether they have children or not, two-thirds of Republicans and 9 in 10 Democrats agree that the subject needs to be taught in school.

A separate poll of teachers found that they are even more supportive, in theory — 86% agree that climate change should be taught.

If you're naming top colleges, you might not think of the City University of New York right away. It's not selective — it serves what one former official called "the top 100 percent." It also has a pretty low graduation rate.

But if you look deeper, at metrics like diversity and sheer number of lives changed, then CUNY can make a strong case.

For the second time in as many years, the nation is in the midst of a frenzy over who gets to sleep in the extra-long twin beds at a tiny fraction of highly selective colleges and universities. Last year, it was a lawsuit over Harvard University's admissions process, particularly its treatment of Asian-Americans.

With Rainbow Butterfly Unicorn Kitty on one side and bulbous-headed Fart Ninjas on the other, the gender divide was impossible to avoid at the North American International Toy Fair in New York City back in February.

The light-up Barbie mermaids vying for space with Gatling-style foam-dart blasters in Manhattan's Javits Center raised a question: Have toys really progressed since our grandparents' days? And how do the toys we play with shape the people we grow up to be?