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RIDDLE: THE ANTS CROSSING A BRIDGE | LEARNING WITH SARAH | EDUCATIONAL VIDEOS Teacherflix 19 Views • 7 months ago

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Hello Happy friends!
Are you ready to learn?

I’m Sarah, and today, we’re going to solve a very curious mathematical riddle.
But don’t think it’s going to be about adding, subtracting, multiplying or dividing.
No, no, maths isn’t just that!
We also use maths to develop our creativity, and solve problems that we come across every day.

I’m going to show you a little riddle called the ants crossing crossing a bridge, and we’re going to see how to solve it!

It’s nighttime, and four ants are being followed by a hungry anteater.
Suddenly, they come up to an old narrow bridge!
One of them, has a light on its head so they’re able to see, and she realises, that the bridge is so old, only two ants can cross at a time, so they will only be able to cross individually, or in pairs.
And they always need the light, because otherwise, they can’t see!

The anteater will take 17 minutes to get to where the ants are, to eat them all! What can our ant friends do to save themselves?

Let’s see, you’re the slowest, and you’re going to take 10 minutes to cross the bridge.
You’re going to take 5, you’ll take 2, and because I’m the fastest, I will take 1 minute.
And we only have one light!
And the anteater is going to take 17 minutes to get here, what shall we do?

These little ants need our help, let’s get our thinking caps on!
But if you need a little more time, pause the video.

Have you figured it out?
Let’s take a look!

If two ants go together, they will take the same time as the slowest ant.
So the best idea is that and 1 and 2 go together.
They’ve spent 2 minutes crossing.

Now, ant 1 will cross back with the light, and she will take another minute.
That means, in total they’ve taken 3 minutes.
Who should cross the bridge now?

Ant 1, will give the lamp to ant 5, and this one crosses the bridge with ant 10.
If we add these 10 minutes, to the 3 we had before, we’ve taken 13 minutes.

Now, the ant that goes back with the lamp is ant number 2, who takes 2 minutes.
So they’ve taken a total of 15 minutes, and the anteater is about to arrive!

So, the ants we’ve got left are the ones that take 1 and 2 minutes.
How long will they take?

Of course! it’s two minutes!
And if we add them to the 15 minutes we had before, we’ve reached a total of 17 minutes!

Yes! we’ve saved our little ants! And it’s all thanks to our maths!

The truth is, maths are so much fun, and so helpful!

Goodbye happy friends! See you next time!

I hope you’re always ready to learn!

Goodbye!

Rounding Decimals To The Nearest Hundredth Teacherflix 38 Views • 8 months ago

#rounding #placevalue #mathhelpvideos #homeschool

In this video, I will show you how to round decimals to the nearest hundredth. First, you need to identify the hundredth place value which is 2 to the right of the decimal. Next, look at the number next to the hundredth place on the right. If that number is 5 or greater, then you round up the hundredth place to the next digit. If it is 4 or less, you round down (which means keep it the same).

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Improved math is a channel created to provide additional instruction on essential math concepts. I’m passionate about math and I know first-hand how important math concepts are in the real world.

Teachers, parents, guardians, homeschoolers, and students can use these videos to help reinforce math skills. These math videos are designed to help teach yourself math or provide self-study math tools to assist when additional instruction is needed. Teaching math and learning math has changed the way many students learn in this virtual environment. Having on-demand math videos can provide math tutoring needed when children are not able to get help from their teachers after school hours or when trying to do math at home.

The library of math tutorials that I create can also be used as supplemental instructional material for homeschool math. Each full-length video comes with a subsequent knowledge check or math practice problems which serve as a virtual math topic worksheet to test your understanding of each skill. These videos can be paused to work out the problems on your own, then unpaused to check your answers. All of these videos can be found under the Knowledge Check playlist.

I also have a library of shorter videos (less than 1 minute in length - shorts) that are quick math tips and tricks on basic math topics. Some of these short math help videos include problems that you can work on yourself and submit your answers in the comments. They are all listed under my Math Tips and Tricks playlist.

Improved math is creating more videos every day to cover topics from 4th grade, 5th grade, 6th grade, and 7th-grade math. The videos focus on fractions, basic math operations, geometry, and ratios but more topics are being added all the time. If there is a specific topic you would like to see covered, drop me a comment in one of my videos and let me know!

Free math help videos will be posted every Thursday and Friday. For additional math resources, check out my math help website at improvedmath.com where I post math worksheets and answers along with additional context on math basics.

Thanks for watching my channel.