Impactful science teaching requires minimum five hours instruction weekly

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New research on middle-grades science teaching reveals that without at least 5 hours of instructional time dedicated to science during a typical school week, teachers are less likely to use the types of inquiry-based learning practices recommended by leading science and education professionals.


Unlike traditional instruction, inquiry-based instruction approaches science learning through sustained real-world projects and hands-on experimentation rather than fact memorization, recall and prescribed experiments. It is considered a best practice by the National Research Council and the Next Generation for Science Standards, among other national and state science assessments, for teaching scientific knowledge and skills for the 21st century.

What’s more, the findings—published Dec. 1, 2020 in the journal Teachers College Record—suggest that only about one third of eighth-grade students in the U.S. actually receive at least 5 hours of science instruction each week.

“Even the best teachers are less likely to teach

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Someone spent 45 hours building an RTX 3070 gaming PC in Minecraft

Henceforth to be known as a master Minecraft builder, Reddit user AlanGeisse has been using their skills to recreate their very own fantasy PC builds in-game. In the first installation, as exhibited in this hilariously epic flythrough video, it’s even possible to swim through the PCs water cooling system—which is pretty amazing. 

Unfortunately, their initial post on r/Minecraft didn’t gain much traction. But, after spending 45 hours on an even more accurate, higher spec design, complete with an elusive Nvidia RTX 3070, Alan’s finally getting the recognition they deserve.

Speaking with us, Alan explains that, due to unavoidable height limitations associated with building in Minecraft, the scale of this second design ended up at around 2mm per block. And, although there were some inevitable scaling issues due to these restrictions, it still looks pretty darn accurate to us. 

Alan graciously divulged how they managed to achieve such an

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Study of 44 infants finds that half never slept 8 hours consecutively — ScienceDaily

New parents often expect their baby to start sleeping through the night around the time they reach six months of age. But according to a new study led by McGill Professor Marie-Helene Pennestri, parents should view sleep consolidation as a process, instead of a milestone to be achieved at a specific age. Tracking 44 infants over a period of two weeks, she found that sleeping patterns vary greatly — not only for different babies, but also night to night for the same baby.

In the study published in Sleep Medicine, researchers asked mothers to keep a sleep diary about their six-month-old infant for two weeks. On average, mothers reported that their infant slept 6 hours consecutively for about 5 nights out of a two-week period, and 8 consecutive hours for about 3 nights out of the same period. Half of the infants, however, never slept 8 hours consecutively.

“Although

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Black Friday Sales 2020: Best Deals And Store Hours At Walmart, Target, And More

In the United States, Black Friday is the biggest shopping day of the year, known as the best time to save money on big-ticket items like TVs, consoles, games, and other tech. With the holiday season approaching, it’s also the best time to cross names off your shopping list and snag a deal or two for yourself. (After this year, you deserve it.) Since is still a very real threat in the US, Black Friday 2020 is going to look much different from previous years, however. Health officials are urging families to forego Thanksgiving dinner altogether and to stay home. Those planning to do their holiday shopping the day after Thanksgiving will have to make new plans if they want to get the best items on sale before gift-giving season begins.

Fortunately, online shopping exists, and Black Friday has been developing a strong online presence with each passing year. With

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Fleets are still visible on Twitter after 24 hours thanks to a bug

Twitter’s new ephemeral tweets, known as fleets, are supposed to last for only 24 hours. But a bug is causing fleets to not totally disappear, remaining accessible well past their expiration dates. First reported by TechCrunch, the bug allows fleets to be viewed and downloaded by other users, but without notifying the fleet’s author.

“We’re aware of a bug accessible through a technical workaround where some Fleets media URLs may be accessible after 24 hours,” a Twitter spokesperson said in an email to The Verge. “We are working on a fix that should be rolled out shortly.”

The “workaround” referenced appears to be a developer app that could scrape fleets from public accounts via Twitter’s API. The Twitter API doesn’t return URLs for fleets that are older than 24 hours, according to the company, and once the fix is rolled out, even if someone has a URL for

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Just hours of training triples doctor confidence in use of handheld ultrasound devices — ScienceDaily

While ultrasound imaging technology has been available for more than 50 years, machine size and cost limited its reach to medical offices and hospitals. However, relatively recent advances in this technology has allowed for the development of ultra-portable handheld devices that appear more like the tricorder from Star Trek than a traditional ultrasound machine. These devices hold high promise in many areas of medicine, but are especially promising for uses such as monitoring heart failure and pneumonia in geriatric populations that have difficulties with mobility or remain entirely housebound.

But when any kind of innovative technology is adopted into the medical community, appropriate training to ensure diagnostic accuracy and safety is essential. A recent trial showed that a short training course — which was made even shorter when it was concluded due to the encroachment of the COVID-19 outbreak — dramatically increased the confidence of four geriatricians in their ability

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Americans Lost 138 Million Hours of Sleep on Election Night

(Bloomberg) — Election night was the low point of the year when it comes to sleep.



a group of people standing in front of a crowd: Attendees watch results come in during a 2020 U.S. presidential election night watch party in San Francisco, California, U.S., on Tuesday, Nov. 3, 2020. President Donald Trump has once again defied polls and predictions, with a strong showing across the Sun Belt in early results appearing to significantly shrink Democratic nominee Joe Biden’s path to victory.


© Bloomberg
Attendees watch results come in during a 2020 U.S. presidential election night watch party in San Francisco, California, U.S., on Tuesday, Nov. 3, 2020. President Donald Trump has once again defied polls and predictions, with a strong showing across the Sun Belt in early results appearing to significantly shrink Democratic nominee Joe Biden’s path to victory.

According to data compiled through a health-tracking device designed in Finland, Americans lost a total of 138 million hours of sleep on election night.

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The Oura ring, which as the name suggests is worn on a user’s finger, also tracked faster heart rates as U.S. users reported more stress and anxiety than normal, according to a blog post by the company. It said the average number of hours slept fell to 6 1/2 —

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New Israeli coronavirus test shaves off almost 5 hours to results

A new Israeli PCR testing system developed by the Health Ministry will reduce the wait time for coronavirus test results from eight hours to four hours, the Health Ministry announced on Monday.

The new system, which is run by robots, will enter service at labs and hospitals around the country in the coming weeks. While usually it takes about an hour to transfer the sample to a sub-test tube, with the robot, which does not need a sub-test tube, the transfer process in the lab will take about five minutes.

The process to neutralize the virus will also be shortened from an hour to 40 minutes. In kits from abroad, the production of nucleic acid used in PCR (polymerase chain reaction) tests takes three hours, while with the Israeli system, the process only takes about one hour and 15 minutes.

The test itself will be shortened from two hours to

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Donald Trump and Joe Biden race to shore up votes in final hours before Election Day

President Donald Trump and former Vice President Joe Biden are racing to drive out the votes of Americans not among the more than 91 million who already cast early ballots as an election that started months before the pandemic, and then was defined by it, heads into its final, frantic hours.



Donald Trump, Joe Biden are posing for a picture: Left: President Donald Trump speaks at a campaign rally outside Raymond James Stadium, Thursday, Oct. 29, 2020, in Tampa. (AP Photo/Evan Vucci) Right Democratic presidential candidate former Vice President Joe Biden speaks at a drive-in rally at the Florida State Fairgrounds, Thursday, Oct. 29, 2020, in Tampa, Fla. (AP Photo/Andrew Harnik)


© Evan Vucci/Andrew Harnik/AP
Left: President Donald Trump speaks at a campaign rally outside Raymond James Stadium, Thursday, Oct. 29, 2020, in Tampa. (AP Photo/Evan Vucci) Right Democratic presidential candidate former Vice President Joe Biden speaks at a drive-in rally at the Florida State Fairgrounds, Thursday, Oct. 29, 2020, in Tampa, Fla. (AP Photo/Andrew Harnik)

Tuesday’s moment of destiny — and what could turn into a prolonged count owing to the crush of mail-in votes — will decide whether Americans reject Trump after a single term or re-up for four more years of his brazen presidency.

It will

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FLOCK SAFETY ANNOUNCES THE WING INTEGRATION TO DISTILL 1000s OF HOURS OF IP CAMERA FOOTAGE INTO SEARCHABLE IMAGES THAT SOLVE CRIME

Software transforms existing IP cameras into cameras that can see like a detective

Atlanta, GA, Oct. 20, 2020 (GLOBE NEWSWIRE) — Flock Safety, a public safety as a service company that prioritizes ethically-designed technology for neighborhoods, small businesses, and law enforcement, today announced the Wing™ integration, which puts software onto existing IP cameras to distill thousands of hours of footage into searchable images that solve crime. Wing allows law enforcement to use Flock Safety’s patented Vehicle Fingerprint™ technology on existing IP cameras to find a suspect vehicle by searching known details, including color, make, vehicle type, license plate, state of the license plate, missing license plate, and unique features like aftermarket wheels, roof rack, a trailer hitch, and more. Wing is available now on Axis brand cameras and will be more widely available in January 2021.

Wing is a critical new integration for law enforcement because unlike buying new hardware,

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