Steep Declines In Data Science Skills Among Fourth- and Eighth-Graders Across America, Study Finds

A new report (PDF) from the Data Science 4 Everyone coalition reveals that data literacy skills among fourth and eighth-grade students have declined significantly over the last decade even as these skills have become increasingly essential in our modern, data-driven society. Phys.Org reports: Based on data from the latest National Assessment of Educational Progress results, the report uncovered several trends that raise concerns about whether the nation’s educational system is sufficiently preparing young people for a world reshaped by the rise of big data and artificial intelligence. Key findings include:

– The pandemic decline is part of a much longer-term trend. Between 2019 and 2022, scores in the data analysis, statistics, and probability section of the NAEP math exam fell by 10 points for eighth-graders and by four points for fourth-graders. Declining scores are part of a longer-term trend, with scores down 17 points for eighth-graders and down 10 points for fourth-graders over the last decade. That means today’s eighth-graders have the data literacy of sixth-graders from a decade ago, and today’s fourth-graders have the data literacy of third-graders from a decade ago.

– There are large racial gaps in scores. These gaps exist across all grade levels but are at times most dramatic in the middle and high school levels. For instance, fourth-grade Black students scored 28 points lower — the equivalent of nearly three grade levels — than their white peers in data analysis, statistics, and probability.

– Data-related instruction is in decline. Every state except Alabama reported a decline or stagnant trend in data-related instruction, with some states — like Maryland and Iowa — seeing double-digit drops. The national share of fourth-grade math teachers reporting “moderate” or “heavy” emphasis on data analysis dropped five percentage points between 2019 and 2022.

Read more of this story at Slashdot.

Arlo’s Security Cameras Will Keep Free Cloud Storage For Existing Customers After All

Security camera company Arlo is reversing course on its controversial decision to apply a retroactive end-of-life policy to many of its popular home security cameras. The Verge reports: On Friday, Arlo CEO Matthew McRae posted a thread on Twitter, announcing that the company will not remove free storage of videos for existing customers and that it is extending the EOL dates for older cameras a further year to 2025. He also committed to sending security updates to these cameras until 2026. The end-of-life policy was due to go into effect January 1st, 2023, and removed a big selling point — seven-day free cloud storage — for many Arlo cams. McRae now says all users with the seven-day storage service will “continue to receive that service uninterrupted.” But he did note that “any future migrations will be handled in a seamless manner,” indicating there are changes coming still.

The thread did not provide details on specific models other than using the Arlo Pro 2 as an example of a camera that will now EOL in 2025 instead of 2024, as previously announced, with security updates continuing until 2026. There was also no update on the plans to remove other features, such as email notifications and E911 emergency calling, or whether “legacy video storage” will remain. The EOL policy applied to the following devices: Arlo Gen 3, Arlo Pro, Arlo Baby, Arlo Pro 2, Arlo Q, Arlo Q Plus, Arlo Lights, and Arlo Audio Doorbell.

Read more of this story at Slashdot.

US Military Shoots Down Fourth Flying Object Near Michigan

The U.S. military shot down another high-altitude object Sunday, reports CNN — this one flying
“The operation marks the third day in a row that an unidentified object was shot down over North American airspace.”
Democratic Rep. Elissa Slotkin of Michigan said Sunday that the operation to down the object over Lake Huron was carried out by pilots from the U.S. Air Force and the National Guard…. The object was flying at 20,000 feet over Michigan’s Upper Peninsula and was about to go over Lake Huron when it was neutralized, a senior administration official told CNN on Sunday.

The object was “octagonal” with strings hanging off and no discernable payload, according to the official and another source briefed on the matter. While the U.S. has no indication that the object had surveillance capabilities, that has not been ruled out yet.

Why have so many flying objects been spotted in the last week? The Washington Post says the Chinese spy balloon and subsequently-spotted objects “have changed how analysts receive and interpret information from radars and sensors, a U.S. official said Saturday.”
The official, speaking on the condition of anonymity because of the sensitivity of the issue, said that sensory equipment absorbs a lot of raw data, and filters are used so humans and machines can make sense of what is collected. But that process always runs the risk of leaving out something important, the official said.

“We basically opened the filters,” the official added, much like a car buyer unchecking boxes on a website to broaden the parameters of what can be searched. That change does not yet fully answer what is going on, the official cautioned, and whether stepping back to look at more data is yielding more hits — or if these latest incursions are part of a more deliberate action by an unknown country or adversary….

The official said the current U.S. assessment is the objects are not military threats.

Read more of this story at Slashdot.

Electric Vehicles Could Match Gas-Powered Cars on Price This Year

This year in America some electric cars could become “as cheap as or cheaper than cars with internal combustion engines,” reports the New York Times, citing figures from the International Council on Clean Transportation, a research and advocacy group.
Prices are likely to continue trending lower as Tesla, General Motors, Ford Motor and their battery suppliers ramp up new factories, reaping the cost savings that come from mass production. New electric vehicles from companies like Volkswagen, Nissan and Hyundai will add to competitive pressure…. Falling prices for materials like lithium and cobalt have also helped. The price of lithium used in batteries has fallen 20% from its peak in November, though the metal still costs more than twice as much as it did at the end of 2021. Cobalt has fallen by more than half since May, in part because carmakers are selling some models that do not require it, reducing demand. New lithium mines are beginning to produce ore, which could keep a lid on prices…

As electric-vehicle sales soar — rising 66% in the United States last year to 810,000, according to Kelley Blue Book — automakers are getting better at making them…. Auto executives say that they are finding it is easier and cheaper to design and build new electric models than gasoline-powered ones. The battery cells made by Ultium, for example, are part of a collection of components that can be mixed and matched in many types of vehicles. Carmakers have long used the same platforms in multiple models, but the strategy works even better with electric vehicles because the cars have far fewer parts than internal combustion vehicles. The Ultium platform cuts the time needed to develop a new vehicle by almost two years, Dan Nicholson, vice president of electrification at GM, said at a Federal Reserve Bank of Chicago conference in January. As a result, GM will be able to introduce three Chevrolet electric vehicles this year: the Equinox, a Silverado pickup truck and a Blazer SUV. “That’s how we get the economies of scale,” Nicholson said.

The article cite’s legislation passed last year subsidizing battery manufacturers, which “could cut the cost of making electric vehicles by as much as $9,000,” as well as the legislation’s tax credits for cars priced below $55,000.
But besides making it cheaper to purchase an electric car, “the car will need less maintenance,” the article points out, “and the electricity to power it will cost less than the gasoline used by its combustion engine equivalent.”
Thanks to long-time Slashdot reader 140Mandak262Jamuna for sharing the article.

Read more of this story at Slashdot.

US-Based EV Battery Recycling Company Predicts Material For 1M EVs a Year

Last year Redwood Materials announced a new program recycling EV batteries (including partnerships with Ford and Volvo). Now Politico reports that America’s Department of Energy tentatively awarded them a $2 billion loan, “which the company says will allow it to produce enough battery materials to enable the production of more than a million electric vehicles a year.”

The Nevada-based company said it plans to ultimately ramp up to producing 100 gigawatt-hours annually of ultra-thin battery-grade materials from both new and recycled sources in the United States for the first time.” Redwood founder CEO JB Straubel, who previously worked at Tesla, said at an event announcing the loan that he had a “front row seat” while at the Elon Musk-helmed electric vehicle maker to “some of the bigger challenges the the entire industry would face as it scales,” particularly around the battery materials supply chain. “It was somewhat clear even way back then, eight years ago, that this would be a really big bottleneck for the entire industry as it scaled,” Straubel said….

Redwood plans to manufacture battery anodes, containing copper and graphite, and cathodes, containing all the critical metals in a battery — like lithium, nickel, and cobalt — amounting to nearly 80 percent of the materials cost of a lithium-ion battery.

A Detroit newspaper reports Ford will also announce plans Monday to help build a $2.5 billion electric-vehicle battery plant in Michigan.

In fact, this year in America some electric cars could become “as cheap as or cheaper than cars with internal combustion engines,” reports the New York Times — specifically because of “increased competition, government incentives and falling prices for lithium and other battery materials.”

Read more of this story at Slashdot.