Category: OpenLab Assignments (Page 1 of 2)

Video- Miralia Moreau


9.999.. Reasons that .999…=1

In this video, Vi Hart demonstrates how .999… is equal to 1 which seem to be really weird but she actually proves it to be true because .999… Is still having the same pattern and by multiplying both sides by 10 and simply the result it will be equal to 1.


Doodling in Math: Spirals, Fibonacci, and Being a Plant

This video discussed how people can find Fibonacci numbers in plant petals pattern and others different kind of things which is really interesting.

How many kinds of infinity

This video is describing the different kinds of infinity that exist. How they are different from each other, and how they can be used.

Part 2

The second video is the one I will be more focused because it is something I did in class but I did not know it was useful for natural things like Vi Hart reveals in the video. I was amazed by the way she explains everything. Although Fibonacci sequence number is something I did in class as I was watching the video it opens my eyes to more discoveries about the different ways that Fibonacci numbers can be used. The question I would ask is that can the fibonacci number be used to find the design of the universe if nobody did have any clue about how the universe looked like?.

Part 3

First of all, I was amazed, and I realize that it would be better if teachers can use not only math problems to make students understand but they need to use natural things that can students have seen almost in everyday life to make learning more effective. I hope when I was in high school my teachers were using methods from natural things to help me understand and also give me a visual demonstration in subjects I was learning. And as a future teacher, I will do all my best to help my students learning more effective and help them going deeper in order to develop the skills of learning.

Video- Josvenia Polanco

1. This video is about proving that there is an infinite amount of real numbers she states one simple reason which is that every decimal we think we can write, you can write many more and add more numbers to the decimal before.

2. Speed and acceleration. She compared driving in the rain to calculus and she says how you can use math to drive when it is raining without freaking out.

3. This is about about multiplying in a different way by using lines. By breaking up bigger numbers into smaller numbers to make multiplication easier.

4. Doodling in class can lead you to drawing stars and by drawing stars you can start a game of making different stars and can help you make a rule for drawing stars.

1. I was going to choose the multiplication one but I choose the doodling one, which is the fourth video. First off all this girl is such a NERD but I love it. She is so smart and although she speaks really quick she brings things that we take for granted daily and shows us how it applies to math. This video is a great video because we all doodle. I am always doodling squares and dots and trying to see what it makes. but honestly I never thought of it applying to math. I love drawing 3D squares because of Calc 3 but specifically making stars and making it to a game and making an equation for it. Imagine if we made games out of all our doodles, I wonder what would be our rules and how would our game look like. I think from now on when I doodle I am going to see if I can make a rule for my doodles or if they relate to math although I dont ever think it does.

2. Math is disliked by many kids but imagine if we could make it this fun? The kids would love it. Because they would feel in charge. They would have control of what they are learning although your really teaching them math. Sadly many times students learn for a curriculum or for regents and this is sad because they aren’t enjoying math, on the contrary students need to think they have control of their education and that they can enjoy what they are learning that math can actually be fun. I think as a teacher, one day I hope to be like this to be able to make math fun and bring games and activities in to the classroom that has never been brought like the one of the doodle. I also want to be able to explain things in many ways. I am really bad at learning things in one way, so imagine a student who truly struggles in mathematics. If I can teach them different ways of doing math like the multiplication example and if we as teacher can bring real life examples like rain and driving or even doodling into the classroom this can make a difference from a student hating to liking math.


Videos – Sonam Gyamtso

Part 1,

I found the Video created by Vi Hart is fascinating, beacause it make me feel that factoring is way more interesting than what I knew before. She found the pattern of factoring by drawing the stars. Which is very unlike with the way how other teachers introduce pattren of factoring to their students. I loved the out come of the last few drawings

This video that created by Vi Hart is about how to explore the mysteries of flexagation., by use strips of paper. I found it if very fascinating,  you strip and tape it nicely into a twisty – flody loop.  and you can flip the Hexaflexagons again and again.

This Video is called Pi Day is Round, I found this is very interesting beacuse I remember that on the day 3/14/15,My hight school math teacher told our class the today is Pi day, but no one queation that if we round the Pi it wil 3.1416, not 3.1415.

Part 2.(Video One)

I am very glad that I got the chance to watch this videos created by Vi Hart, after I watched these videos I was shocked by Lady who create the videos. They show you many very intersting things that related to math, but you will naver see this things in taxt book or learn them in class. In addition, This Videos also shows that math is related to verything in our daliy life. It also convinced me that Math is not just a course, it is a independent world that has it own system and language. However,I think that I did not understant about her Videos was: what was the reason she speak so quickly in her very videos?  I had to watch the video three or four time to get understant the concept of the video.

Part 3.

Many student give up math, because they think math class is one of most  boring class, and it is also very difficult to manage it. I have been ask many people about what is you favorite class and wich class they hate the most. The resolute I got was very interesting, because  many people see math as their favorite calss or the class they hete the most. So I come up a conclution that people who understant the math will love math but people who don’t unserstant the math will think it is a very boring class. So as a math teacher, it is important that you can show your student the side of math that is interesting. But it is not a essey thing do to, beacuse, math is not like other courses, you can tell a intersting story about it or do a fancy expaeriment.  I believe that Vi Hart showed us a very good way to teach your student math, just like the Video one.


Videos- Yasmine Soofi

Part 1

Video 1: Math Improve: Fruit by the Foot

This video explains making to connected loops using candy strips or paper strips.


Video 2: Thanksgiving Turduckenen-duckenen

This video shows a turkey stuffed with two s stuffed with four hens stuffed with eight quail eggs. It is a mess cooking them, but it’s interesting how she was trying to say the words linearly or layer by layer and make it as music.


Video 3: The Calculus of Bad Driving

This video is talking about how the car stops depend on the slope of the line.


Part 2

I like video 1 which is about fruit by foot. It is interesting specially the part about making connected loops. I was excited about making it so I tried it using paper but instead of highlighting the edges using the same color I tried two different colors to convince myself. I learned that when we twist the stripe, one edge would be stuck to the other edge. That’s why we get the big loop which is the combination of the two edges. The small loop is just the middle part of the stripe. My question is what if we twist the stripe and cut it to four parts instead of three? I am going to try it later and see what happens.


Part 3

This video makes me wants to use material, as much as I can, to explain math to my future students because it makes math fun and much easier. I think the video is teaching and has sort of math. I also think it has some connection to the reading assignment Lockhart’s Lament. I just wish every teacher teach math in a way that makes it interesting so students wouldn’t complain about math.



Videos- Kelly Toth

Part 1:

Video 1- How many kinds of infinity are there?

ViHart discusses the many types of infinity, such as Countable Infinity and Alpha Null. She also describes the “flavors” of each infinity and how they can relate to real world examples.

Video 2: A Song About a Circle Constant

In this video she creates a catchy, or possibly annoying, tune about “Tau”.  While the song describes the numerical value of tau, 6.2831…, she also, rather ingeniously, took the individual numbers of Tau’s value and equated them to notes on a musical scale.

Video 3- Pi is (Still) Wrong

ViHart continues in yet another video to rage against Pi. She believes that using Pi is inferior to using Tau. She has confidence that mathematics should be simple and elegant as possible. Pi, versus Tau, is less efficient and less graceful.

Parts 2 & 3:

Video- Optimal Potatoes

This video is a hilarious and practical look at the mathematics, geometry, of Thanksgiving Dinner. Vihart brilliantly breaks down the mathematical relationship of mashed potatoes moats and the amount of gravy said mashed potatoes can hold. This clever application of mathematics to a seemingly random subject, Thanksgiving Dinner, is precisely the type of innovative teaching strategy that needs to be used to be able to draw a student into the beauty of math.

Vihart has packed this video with little tidbits of math. For instance, I did not know that any two-dimensional shape, when inflated, will turn into a circle.  Vihart’s strategy of explaining subjects such as this in nontraditional ways is the essence of teaching. By using both music and the internet she could create a learning technique that is both relevant and engaging. This sort of adaptability is one of the cores of a good teaching philosophy.

I do question if such techniques would be practical in a classroom environment. While the videos are wonderful I would like to know if, and how, she translates this style of teaching to an actual classroom setting. Obviously, she could not cook dinner in classroom, so how does she create comparable examples?


Videos-Evelin Perez-Flores

Part 1.

a) Doodling in Math: Sick Number Games-

The video discussed about the different types of number games you can create just by simply looking at the different qualities of a number.

b) Fractal Fractions-

The video discussed how a simple a number can be simplified into a complex of fractions and still equal to the original value.

c) Hexaflexagons-

The video was about how creating a hexagon out of paper can demonstrate a pattern as you play around with it.

Part 2.

I will focus on the second video. When I first saw the video, I was a little surprised and confused about everything that was going on. Mostly because it was going all too fast. When I saw it the second time, I actually took breaks to fully understand what was going on and I was mind-blown. I couldn’t imagine something so simple can become something so complex. All due to the power of algebra. I learned that anything is possible as long as you follow the rules of algebra and I mean ANYTHING. Two questions come to mind after watching this video. 1: why don’t teachers demonstrate these mind-blowing facts to students? 2: is there a special case when this wouldn’t work? Or will it always work?

Part 3

This video might’ve not had the typical classroom vibe when it comes to teaching mathematics but regardless, this video was teaching mathematics to the viewer. It definitely gets you to see a simple number in a more complex way. This video will get the viewer to start thinking of the endless possibilities a number can have. That’s something I hope to accomplish in my future classrooms, to have students see or approach a problem in their own unique way. One way I can accomplish that is by letting students play around with concepts or by opening their minds to completely new point of views in mathematics.  I wouldn’t want students to follow everything like robots. Similar to the idea in the reading assignment Lockhart’s Lament, that students should have the opportunity to be creative in mathematics.

Videos- Stephanie Cuate

Part 1-                                                                                                                                                                                                              

a).   Visual Multiplication and 48/2(9+3): This video is showing a new way of multiplication by using lines and counting the intersections. It also explains how crucial notation is in math.


b).   How to Draw a Perfect Circle: This video is about what makes a circle perfect, like for example she mentions about the radius needs to be the same. And how to perfectly

draw one.


c).    Origami Proof of the Pythagorean Theorem: This video explains the Pythagorean theorem by using a piece of paper, folding into different triangles. It explains the concept of the Pythagorean Theorem and why we use it and add it, and why its equal.



Part 2- I pick the first video to focus on.


When I first watch this video, I was amazed. I never learn or saw anything like this before. I had no clue that just by drawing lines and counting the intersection could help you get your answers. Watching this, made me surprised because I couldn’t believe this worked. I learned that teachers out there don’t want us, as a student, to know these shortcuts because we would use it more often than learn their way. I also learned that there are other methods out there to solve a multiplication problem. But a question I have is, what kind of multiplication does this work for? Does it work for two digits numbers? Can I work for more than two digits? Does it work for one digits?


Part 3-

As a future teacher, I want to teach my students different kind of ways to solve any kind of problems. I want to share information of what I understand more and show them my view of doing this. This video helps me understand that you could teach different kind of ways. In which this is teaching, like I learn how to use this method. This is relevant to the work I will be doing in my classroom because I’m going to be teaching how to multiply and distributive something and when to use it. But this is also math because in math, we not only use numbers, algorithms; but we also use diagrams, graphs, drawing to help us, etc.  A connection to the earlier reading assignment of Lockhart’s Lament is when Lockhart explains that in math you don’t have to follow specific directions to get your answer, it’s about creating new ones. And Lockhart is right, for example like the video, she didn’t use the basic multiplication to solve her answer,  she used lines and the intersection.




OpenLab #7: Hold your breath and dive into math – Vi Hart

Vi Hart describes herself as a “recreational mathemusician” – she has a unique approach to mathematics and its connections to the world.  In this assignment you’ll be exploring some of her videos (she has a YouTube channel here), and using them as a basis for creating a new blog post.

Assignment (Due November 9, 2016).  Create a new blog post responding to the instructions below. Creating a new blog post allows you more flexibility than simply leaving a comment. You have the ability to edit your work after you submit it, and to include photos, videos and other media. It also allows you to contribute to the public content of our course website.

You can get started by clicking the plus sign at the very top of our site (if you don’t see it, make sure you are logged in to the OpenLab). Detailed instructions on creating a new blog post can be found here (see “Writing a Post” in the middle of the page). You should create a new post including the following:

  • The title should include the word “Videos” and also your name.
  • Your post should include responses to all three parts of the assignment described below.
  • Under “Category,” select “OpenLab Assignments” (you will see this on the right side of the screen)
  • Under tags, enter “OpenLab 8”, “Vi Hart”, and any other tags you think describe the videos you watched (for example, you might choose “pi” if it’s a video about pi).  Don’t forget to click “Add” after entering your tags in the box.
  • When you’re done, click “Publish” (the blue button towards the top right on the screen).


Watch at least three different videos by Vi Hart from .  You should:

  • choose videos at least 2 minutes in length
  • choose videos that are related to math in some way
  • choose three videos, at least two of which should not appear on her front page (older or less popular videos).  For a full list of her videos, click the “Videos” button near the top of her page – or click here.  Scroll to the bottom and click “Load more” to see older videos.

In your post, include a response to each of the following three Parts:

Part 1. Include a link to each video you watched (3 minimum), the title, and a one or two sentence description of what the video was about.

Now choose one video to focus on.  You MUST watch it 3 times. Use it as the basis for parts 2 and 3.

Part 2.  Write one paragraph discussing the contents of the video:

  • How did you feel watching it? Did you like it, or not? Were you confused? Inspired? Bored? Excited? Bewildered?  Why?
  • What is one thing you learned from the video?
  • What is one question you have after watching it?

Part 3.  Write a one-paragraph reflection discussing what the video could mean to your own math teaching.  Is it math? Is it teaching? Is it relevant to the work you will be doing in the classroom? Is there any connection to the earlier reading assignment Lockhart’s Lament?  Any other thoughts?

Extra Credit.  You can earn extra credit by responding to one of your classmates’ posts.  As always, be kind, be respectful, be honest.

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