Tag: Difficulty

Watch UMass Professor Explains the Internet in 5 Levels of Difficulty | 5 Levels

Amel
Watch UMass Professor Explains the Internet in 5 Levels of Difficulty | 5 Levels

Hi, I’m Jim Kurose,

I’m a professor

at the University of Massachusetts at Amherst,

and I’ve been challenged to describe the internet

in five levels of increasing difficulty.

The internet is the most technically complex system

that humanity has ever built.

The internet is a network of networks.

It’s a platform on which all of the internet applications

that you’ve heard of can be built.

[bright music]

Hi, it’s really, really nice to meet you.

What’s your name?

My name is Skylar.

Skylar, we’re here to talk about the internet,

and I bet you must use the internet a lot, right?

Yeah.

What’s your conception about what the internet is?

The internet?

For me, it’s just something to use when I need

like to search up something or watch videos.

The internet is, physically, these computers

that all talk to each other.

Billions of computers, in the case of the internet.

The internet allows us to do

a lot of really, really interesting,

what we call applications.

You ever think about how that video gets to you

over the internet?

Yeah, I have no idea.

Got a favorite movie?

Matilda.

Matilda. All right.

We’re gonna actually build an internet.

I’ve got a couple of things here that I wanna show you,

or a couple of toys, actually.

Okay, let’s pretend that these round balls are computers.

And the internet is something that connects them.

And right now, the internet is just one communication link.

And Matilda is sent over the internet from this computer

to your computer.

So the internet is a network for carrying information

from one computer to another.

Now this network here looks pretty simple, doesn’t it?

Right? It’s just one thing.

Should we add some more friends in?

Yeah.

Let’s say we want to get a video from here, over to here.

How do you think that video would sort of travel

through this network?

Maybe it could go to here, to here, to here, to here.

That’s right.

So that’s pretty cool.

There are actually lots of different ways to actually go

through the internet to get from what we call a source,

the place that’s sending the information,

to the receiver, the place that’s actually gathering

the information together.

And that’s something we actually call routing.

Huh, but wouldn’t it just be easier

for it to go from here to here,

instead of going from here to here,

to here to here?

Yeah. So that’s a really good observation.

In most pieces of the internet,

that’s exactly what would happen.

We want to take what’s called a shortest path.

But still, there are multiple paths.

And why do you think that might be valuable?

Maybe one way is messed up or broken.

So you go the other way.

Exactly.

So, Skylar, that was a great discussion

about what we just built.

And I wanted to talk to you about,

or ask you about maybe one other really important

part about networks.

And it’s not

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Web Scratches Its Head Above ‘Can of Worms’ 3rd Quality Math Difficulty

Amel
Web Scratches Its Head Above ‘Can of Worms’ 3rd Quality Math Difficulty

From losing marks on a technicality to questionable experiments in science course, you will find a cause why our faculty decades pop up in our desires extensive immediately after we’ve still left instruction.

Extra to that, we all recall a challenge that we seriously pondered over, and so it is proving with the present 3rd grade math question that has the internet up in arms.

Posted to the r/mildlyinfuriating discussion board by Redditor u/webguy96 on June 5, the publish has obtained far more than 7,000 comments from puzzled consumers seeking to decipher the “poorly-worded” equation.

Along with a drawing of 3 baby birds in a nest, the concern reads: “Jared identified these baby birds and needs to care for each of them. Every single chook eats about 4 worms a day.

“In buy to feed them all every day, about how a lot of worms will Jared need to have to obtain?”

The possible answers to the several preference concern are F.6, H.10, G.4 or J.20.

A study by Mongoose in 2020 explored American parents’ knowing of STEM topics, alongside with how they prepared to assist their small children by way of grownup learning. Some 55 p.c of mothers and dads admitted to having difficulties with math at university, although 4 in 10 discovered science demanding.

Math and science were also the two subjects their children uncovered the most challenging, with a lot of dad and mom fearing their absence of know-how would result in their kid to slide at the rear of although distant schooling. Some 72 per cent of mothers and fathers surveyed intended to analyze STEM topics alongside their children so they could support their understanding.

In spite of getting aimed at 8 to 9-year-olds, many buyers have been stumped by the issue, believing that some context was lacking from the equation.

“The concern also does not point out how quite a few times, so you are lacking details to the right way address the problem,” wrote pleasantlyexhausted.

“The photocopy melt away lets you know no person has ever bothered to revise poorly worded concerns like this,” stated mirshe.

Some Redditors considered the challenge was created this way to really encourage the kid’s essential wondering competencies, but that the proper reply wasn’t there.

“See, I am all for the idea which is attempting to be taught with this variety of issue. Estimation is an incredibly potent device,” commented extordi.

“I imagine there’s three birds, so 12 worms. Rounding down to 10 is probably what they want, but will also mean that there is certainly underfed birds. Rounding up to 20 signifies you happen to be finding pretty much two times as numerous worms as you require.

“A much better model would have experienced 14 and 10 as solutions, given that they are ‘equidistant’ from 12.”

Gary Lloyd, a maths teacher primarily based in the U.K., agreed that the question is about estimation, but not like quite a few users suggested, stated 20 is the proper response.

He

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