Education Station
Education Station (Season 3, Episode 6)
Season 2021 Episode 19 | 28m 36sVideo has Closed Captions
Lessons on math, text features, and science.
Lessons on math, text features, and science.
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback
Education Station is a local public television program presented by WVPB
Education Station
Education Station (Season 3, Episode 6)
Season 2021 Episode 19 | 28m 36sVideo has Closed Captions
Lessons on math, text features, and science.
Problems playing video? | Closed Captioning Feedback
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Hey everyone, its Education Station, the show where we invite teachers from all across West Virginia to submit videos of themselves teaching their favorite lessons.
In today's episode, we've got three exciting lessons about math, text features, and science.
Well, hello, and welcome back to everyone.
I'm your host, Alex Milanese.
And before we begin our first segment, I wonder if you can tell me anything that is similar between these two scenes?
Well, for one, a carpenter and a baker both need to use fractions every day.
So we're kicking off today's episode with Mr. Niecy who has a helpful lesson about multiplying fractions.
Let's check it out.
Today we're going to do math lesson five.
This is all multiplying fractions, we've looked at what fractions are, we've looked at the least common denominator, we've also looked at adding fractions and subtracting fractions.
So now we're looking at multiplying fractions.
So there are three simple steps to multiplying fractions, first, we have to multiply the numerators.
Those are the numbers on top, then we have to multiply the denominators, the numbers on bottom, and then we have to simplify the fraction if we need to.
So let's look at an example.
We're going to multiply one half times two fifths, right, so step one, we have to multiply the numerators.
So here's our one half and our two fifths.
So over here, we take one times two, and that equals two.
So now we have a new numerator for our answer.
So then we have to move on to step number two.
Step number two, we're going to multiply the denominators.
So here's our one half times two fifths, so one times two is two.
And then if we multiply the denominators, two times five is 10.
So the answer to our question of one half times two fifths is two tenths.
But then we had to do step number three, step number three, we have to simplify the fraction, we can reduce two tenths to 1/5.
Because too, you know, divided by two is 110 divided by two is five, so two tenths equals 1/5.
And that would be our final answer.
Okay, so I have another example.
Let's try and see if we can remember the steps 1/3 times nine 16th.
So we're going to multiply the numerators.
Here, our numerators, the numbers on top one times nine is equal to nine, then we're going to multiply our denominators.
So we already have our one times nine is equal to nine, we're going to multiply the three and the 16, which is equal to 48.
So 948 is our answer.
Can we simplify that?
Yes, we can.
So we can come down here, we can simplify this by if we have nine 948 is equal to three sixteenths.
Alright, let's see what else we have here.
All right.
What we also want to look at is fractions and whole numbers, can we multiply a fraction by a whole number?
Yeah, we can do that.
But the first thing we have to do, we have in our example, number one, under whole numbers, if we have two thirds times five, we have to change five into a fraction.
So the easiest way to do that is just to put it over one, anything over one is that number, even if we had 100 1000 a million, it would still be that same number.
So five over one is equal to five.
So we've got to change it to a fraction, then we just proceed as we normally would.
We have our two thirds, which we brought down from up here.
Here's our five over one, what is the first thing that we have to do, we have to multiply our numerators.
So two times five is 10, then we have to multiply our denominators.
Three times one is three.
So if we're going to leave this, this is top heavy, but we're going to leave it in this form because it didn't tell us to change it into a mixed number.
So we're going to leave it as 10 thirds.
Example number two, we have three which is our whole number, and we're going to multiply that times two nights.
So what do we do the last time up here we put five over one, we can do the same thing with three, we can make three into three over one, and then we can proceed.
So we bring our three over one down here, and we're going to multiply it by two nights.
Step number one, we multiply the numerators.
Three times two is six.
Step number two, we multiply the denominators.
One times nine is nine.
so our answer of three over one times two over two nights is equal to six over nine can we reduce that yes we can we can simplify six nights into two thirds because three will go into six two times and three will go into non three times so our final answer would be two thirds all right let's look here we also want to look at multiplying mixed fractions so a mixed fraction is a whole number with a fraction with it that's mixed fraction we're mixing a whole number with a fraction so our first question is what is one and three eighths times eight let's go back to our pizza example so we can kind of figure out visualize this here's one whole entire pizza that's the whole and then we have three eighths of this pizza so this together represents are one and three eighths of a pizza so first first thing we have to do is to get all of these as fractions so we're going to convert the mixed fraction to an improper fraction improper means the top numbers bigger than the bottom number the easiest way to do this if we're looking at one and three eighths is to multiply eight times one which is eight and then add the three right that gives us a london so 11 eighths is one and three eighths as an improper fraction this is where we want to use it so if we cut the whole pizza in the eight we can see how many eggs we have all together right so here's our one whole pizza and eight slices then we have these three additional slices of this pizza so we have eight eight here eight 910 11 so that we that looks right that's what we had here 11 eighths that's the same number so we're going to use that 11 eighths in our next series of problems so we know we have to multiply by three because that was the problem was one and three eighths times three so we're going to look at our pizzas here we have one in three eighths of a pizza one and three eighths of another pizza one and three eighths of a third pizza so we have one in three eights times three what do we do in those other two examples with whole numbers put them over one so we have 11 eighths times three over one so now we're going to just follow the other steps 11 times three for the numerators is 33 and eight times one is 833 eighths so let's look at another representation to see if we can kind of figure out if we're right so we want to convert this to a mixed fraction or 11 eighths we don't want to leave it as an improper fraction so here are 1234 whole pizzas we filled with eights and we have one eight left over right so if we want to see what 33 eights is we have 1234 whole pizzas so there's our four whole pizzas four times eight is 32 with one little eight leftover so now we have four right and one eight this is what it looks like if we would just do it all without the pizza but the pizzas help you to see the picture so we have one in three eighths times three we made our one and three eighths into 11 eighths and we put our three over one right so now we're going to multiply 11 times three is 33 eight times one is eight and then we switched it up here two four and one eight that's our mixed number right okay so let's look at one more example just to make sure that we're doing it properly here's example number two in this instance we have two mixed numbers we're going to multiply together we have one and one half and to add 1/5 here's our answer but how did we get this answer let's look and see how we got it we want to change this one and one half to three halves and this to one 1/5 to 11 fifths right let's see how we do that step by step we're going to convert our mixed numbers to improper fractions so one and one half we get two halves which is one right and then we're going to add this half so that gives us the three halves because remember when we added fractions we moved the denominator over and added the numerators so three or two plus one is three same thing for two fifths if we want to get to five divided into 10 goes two times so that's two that's our whole number and we have this 1/5 leftover so here's our 1/5 we're going to add them just like we would normally add fractions we bring our five over for our denominator 10 plus one is 11 now we can multiply we've got our two numbers we need to multiply so we bring our three halves down here 11 fifths over here.
Three times 11 is 33.
Two times five is 10.
So do we want to leave it in this representation here?
Let's look and see if that's how we want our answer, we can convert that to a mixed number, right, so we take 10, how many times we go into 33, three times, which gives us 30.
And then 33 minus 30, gives us three, and we put that back over our 10.
So three in three tenths is equal to 33 tenths was our last example, is three in 1/4, times three and 1/3.
Let's make these into improper fractions convert our mixed numbers, I did this the same way, three times four right here is 12. plus one is 13.
Three times three is nine, plus one is 10.
So we have 13 boards, and 10 thirds.
Now we can multiply, we multiply the numerators 13 times 10 is 134 times three is 12.
But we don't want to leave it here, we want to convert it to a mixed number.
So how many times does 12 go into 130 10 times which would equal 120.
So if we take our 130 and minus 120, we get 10.
So we put it up here, up here, and then there bring our 12 over, can we reduce this?
That would be our last step?
Yes, we can reduce 10 and 1012 to 10 and five, six, that would be our final number.
Thanks, missiny seed.
All right, next up, we have an exciting reading lesson, Mrs. Easter is going to discuss how text features can help us become better readers.
Let's check it out.
Hello, everyone.
My name is Shana Easter.
And I am a teacher at row branch elementary and middle school.
And today I'm going to teach you about takes features.
So this is one of my favorite lessons to teach.
And so to begin with, let's talk about what the term takes features means.
When you think of the word takes, you may think of textbooks or magazines, or even commercial advertisement.
The next word features can be thought of almost like the features for each person.
And some features that could describe me are brown hair, and as young, medium hot, although you guys probably can't tell that right now.
And if I gave features about say West Virginia, the list would include maybe wanding Mountains, low valleys, and steady streams.
So with that in mind, when we put those two words together, we're able to look deeper into reading material to find out more information on the topics that we're researching or reading about.
So now that we've got a better idea of what takes features means, let's talk about what is considered a takes feature so what are takes features.
These include pictures, captions, labels, headings, and even table of contents, glossary, index maps, bulleted lists, graphs, and even Tom lawns.
So basically, in other words takes features are things that stand out to your eyes when you're reading.
And the author uses these features to bring attention to important information.
Now that we have some background knowledge on takes features, we're going to get ready for surgery.
Today, we have a patient who needs to transplants, we're going to be finding text features from our magazines to carefully cut out and transplant to our critical patients body is crucial to our patient's health.
So we attempt to find one example of each takes feature listed.
I think if we can find most of those the patient will will still survive.
So let's get started.
Okay so let's go over what we've learned today takes features helps readers find important information very quickly.
But help us identify and remember big ideas and topics.
They can be illustrations, headings, or even list.
So hopefully today you learned a little more about takes features and how to use them in your next reading assignment or even assessment.
Thanks, Mrs. Easter.
Okay, last but certainly not least, we have an awesome science lesson about transverse waves.
Now these types of waves are all around us, the Wi Fi in our homes, the radios in our cars, and the microwaves in our kitchens are all examples of transverse waves.
So for more on this topic, let's go visit Mr Adkins.
Today we're gonna take a look at transverse waves and introduction.
The the topic we're going to be looking at is something that looks very similar to this.
And a lot of people refer to this as a ocean wave or any normal wave.
This is what we normally think of, but it is often referred to as a transverse wave.
A couple of things we're going to discuss first is what is it Wave, how does it work, and what are some of the primary components of it.
So let's take a look at what we're going to deal with first.
Okay, looking at what we were discussing the fact that we're talking about something called energy.
So a wave transfers energy from one location to another location.
Now, in our example, here, for this transverse wave that we're going to be discussing, it's going to require a medium.
Now a medium is something that allows us to manipulate the energy.
So let's take a person, so let's just standard person here, and let's give them a rope.
Currently, the rope is not moving.
Now, when the person raises their arm to a new location, then brings it back down to another location, the ropes gonna go with it, we understand that concept.
When we take a look at an example, a little bit later on, we'll get it a little bit more in detail.
So the first thing we're going to deal with is the fact that the person raises arm or ropes want to come up to the high point, then we're going to cycle it down, back up, back down, back up, back down.
When we look at this, this is our energy.
So the movement of the arm is providing the energy, and the energy is going from the start location, traveling down the row and exiting the end of the rope.
And that's going to be our transfer of energy.
Now our transfers wave gets its name from a couple about it.
So when we talk about this wave here, we're going to give it a location, we're gonna call this the equilibrium one, or this is the when the rope is at rest and not moving.
So as we look at that, and we focus in on what's going on here, we're going to talk about some movement.
Now the movement of a transverse wave means that the energy transfers this direction.
And our particles or the rope that make up all of our little parts that move, go in this direction.
And this direction, the term that we're referring to here is is the fact that these two objects make something called a right angle.
And this right angle is referred to as perpendicular.
So when we talk about a transverse wave, we're talking about a the particles moving perpendicular to the direction in which the waves are moving.
Now, what we're gonna do right now is we're gonna take a look at a short video demo of a setup here I have that shows a something called a standing wave.
So let's get that set up and get it ready.
Okay, the setup I have here is a piece of equipment from the business bias that I teach.
So we're looking at the strain that is moving, this object here is going to make moving up and down white quickly.
And what we're doing is developing something called a standing way.
That means that the way it goes all the way down to the end of the rope, it's the and reflects back on itself, and creates the illusion that is standing still, a couple of things that we need to remember is that we're looking at this, this area right here, it's called a node, that's the location that has the least amount of movement.
This is this location here is called an anti node, it causes the most movement, node, least movement, anti node, most movement.
So that was our standing wave that we created using the piece of equipment from our physics class.
So we just saw that standing wave, so we're going to sketch that standing wave again.
So the wave goes down, hits the surface, stops, reflects back on itself.
And we get that kind of shape.
Now, from that we had a couple of items that we said that that was our know, that was the location with the least amount of movement.
We said this location here was the anti node location with the most movement, so that was a node.
And this was an anti node.
Now, from those basic concepts, talking about the person moving the string, to a demo of the string being set up, let's get into a couple of more details about a word So let's start out with sketching a wave here.
And we're going to talk about the components of a wave the parts.
Now, we've got a couple of things here, let's sketch in as a equilibrium line here to try to help us out.
Oh, it would help if I could draw a straight line, but that was close.
Now, when we look at our equilibrium line, a location of the maximum movement above the equilibrium line is called a crest.
Okay.
The next location that we're going to be looking at is the lowest point below the equilibrium line, that location will be there that is also referred to as a trough.
Now when we take a look at those, we have some basic ideas.
Remember, the little green line was the equilibrium line.
Now when we take a look at this, we're going to zoom in for just a second here.
And we're going to take a look at a specific location here.
Now one of the things that we're going to define is something that deals with this distance here.
Now that distance there is referred to the amplitude of a wave.
Now we're going to look a little bit more about amplitude and the amount of energy and a later video.
So let's go on with a couple of more parts.
Okay, that we're going to look at, let's sketch our wave again.
Now we're going to talk about something called a Whoo, that was pretty bad here.
Let's undo that.
Let's erase that last little bar, little part there.
Okay, now we've got a basic wave.
Now we're going to talk about something called a wave length.
Now, a wave length is a specific way of measuring a wave.
And it refers to completion of one complete cycle.
So if we pick this as my start location, and this is my end location, you notice how I'm going from a crest to a crest.
So that is completing one cycle.
That will be one wavelength, okay.
So you can pick any location.
So I picked this location here on my equilibrium line.
So I'm going to go one crest, halfway there, come around the trough, and here.
So that location from sea today would be one wavelength also.
So when we talk about that we have a lot of information that we can deal with.
Now, these are some of the basics about a wave, specifically a transverse wave.
And that's some information that we can use a little bit later on, when we get to the effects of amplitude, and energy.
Thanks, Mr. Adkins.
All right.
Well, that wraps up everything for us here today on Education Station.
We want to thank everyone who shared their awesome lessons.
And we want to thank you for watching.
We'll see you next time right here on Education Station.
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