Showing posts with label iPad. Show all posts
Showing posts with label iPad. Show all posts

Friday, December 6, 2013

Math Links for Week Ending Dec. 6, 2013

OK, so I am not going to say much about the features of Math Disk except to say watch the video below and try not to be impressed with all it does. Ok, so maybe I will mention some of the features. Algebraic and numerical calculations, function and statistical plots, probability, dynamic geometry and 3D vector plots (amazing stuff ripe for MCV4U) and even physics simulations (you can actually play angry birds). There is an iPad version as well. Though it doesn't have all the functionality, by creating an account on your computer, you can open and manipulate any files on the iPad. That being said, because it does so much, there will be a bit of a learning curve to figure out how to use it. There are a number of support articles and of course there are a pile of how to videos. My only complaint about these is that there doesn't seem to be any verbal instructions. They just show you how to do things. So when I was trying to make a dynamic plot, I found it hard to just watch what they were doing and mimic it on my screen without watching a few times. But once I got the gist of what to do the graphs and sketches started to flow. And its totally free. Go ahead, try to not be impressed by this. Thanks to Free Technology for Teachers for pointing this out.
Curriculum Tags: All
https://www.mathdisk.com/


The second of two graphing applets today is called Plotly. Now I know in Ontario we have both Fathom and Tinkerplots to use freely at home or school and many of us also have Excel and possibly Google Docs now but this package does just about every type of graph relatively easily. That is something that none of the above mentioned can do. Excel is pretty good at making line, bar and circle graphs (same with Google Docs) and Fathom and Tinker plots are great for graphing microdata (scatter plots, histograms, box plots and dot plots). But Plotly does them all. Histograms, box plots, bar graphs, line graphs and my new favourite: heat maps among others. I do find it interesting that circle plots are curiously omitted (probably a nod to those statistics folks who think they are among the most misused and awful types of graphs). All of the graphs have mouse over features and can be customized. As an added bonus it seems to work fine on an iPad (sans mouse over features) and you can even import your data from Dropbox or Google Drive. I suggest looking gallery to see the scope of what can be done and at the tutorials to master any of the idiosyncratic features of making these graphs. And of course, don't forget to create an account to save all of your graphs.
Curriculum Tags: MDM4U
https://plot.ly/
Depending on how anal you are about pseudo random generators (purists among you will no doubt harp that any electronic random generator is not, in fact, random - and you would probably be right), you may think this is cool or useless. Flip a day has one purpose. To flip a real coin once per day and post the result. That's it. As of today they are at 220 flips. You can follow them on Twitter and download the csv file as well.
Curriculum Tags: MDM4U
http://flipaday.co/
If you haven't used Dragon Box, I think you are missing out. I truly believe it is one of the best games out there that actually teaches a math concept. It runs on multi platforms and isn't that expensive. But how would you actually use it in a classroom to teach solving equations? Thanks to Tap into Teen Minds you are one step closer to figuring that out. Thanks Kyle
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P, MPM2D, MFM2P
http://tapintoteenminds.com/2013/11/24/how-to-effectively-use-dragonbox-in-your-solving-equations-lesson/


Do you need an example of something big to give some meaning to number sense calculations? Well how about info around the largest container ship ever built? Here are some stats over 1600ft long (longer than the Empire State Building is tall), 600 000 tonnes. It is basically a floating liquifying natural gas (FLNG) facility that mines, processes and can store up to 3.9 million tonnes of liquid natural gas each year. To get a sense of how much use out of that gas consider that the average family might use about 2000-3000 cubic metres of natural gas during the year (in gaseous form - click here to help convert that)
Curriculum Tags: Gr7, Gr8
http://www.wired.com/autopia/2013/12/worlds-largest-ship/



I love this "proof without words" of the area of the circle and how it can be connected to the area of a triangle. You probably could even get into some calculus talk in terms of infinitesimal slices of a circle to I guess
Curriculum Tags: Gr8, MPM1D, MFM1P
https://www.youtube.com/watch?v=whYqhpc6S6g

Friday, September 27, 2013

Math Links for Week Ending Sept. 27th, 2013


I am not sure of exactly what applications this might have in the classroom and it does have some limitations but I think the interface is really smooth and nice.
Curriculum Tags: All
https://itunes.apple.com/us/app/myscript-calculator/id578979413?mt=8

I was watching the show Tanked (they make custom aquariums) and they did this neat thing where they had to make a martini glass so they cut a flat piece of plastic and then placed it on a form and baked it so that the plastic bent around the form to make the cone. It was very impressive. I tried to find the video but couldn't. I did, however, find a real company that makes these cones and they had a page on how they make them (including an Excel spreadsheet)
Curriculum Tags: MPM1D, MFM2P
http://www.polyfab.biz/plastic_cones_fabricate.htm

I think that the concept of functions might be one of those things that sometimes doesn't get the treatment that it should. Here is an interesting treatment that uses the analogy of using a vending machine. Take a look.
Curriculum Tags: MCF3M, MCR3U
http://christopherdanielson.wordpress.com/2013/09/15/sameness-in-college-algebra/



Here is a nice progression from similar lines to similar shapes.
Curriculum Tags: Gr7, Gr8, MPM2D, MFM2P
http://feedproxy.google.com/~r/ratexp/~3/PxATwiz5mTU/are-these-figures-same-shape.html





As far as I am concerned, you can't have enough activities that show how improbable it is for someone to win the lottery. As it is with other Yummy Math activities, you have to be a member to get the solutions and an editable version of the activity. I particularly like the link to the app to simulate the powerball lottery.
Curriculum Tags: MDM4U
Probability http://www.yummymath.com/2013/powerball/


I like this update of an older Dan Meyer activity dealing with the relationship between ticket cost and distance travelled/time taken for flights. A nice scatterplot/line of best fit activity. The main part of the update that I like is the use of Google docs.
Curriculum Tags: MPM1D, MFM1P, MDM4U, MAP4C
http://thefischbowl.blogspot.com/2013/09/air-travel-google-apps-style.html


Whenever I can introduce an algebraic concept by first using a numerical method I am happy. Apparently I am not the only one. Here is one dealing with the distributive property. Thanks to Dan Meyer for this one.
Curriculum Tags: MPM1D, MFM1P, MFM2P
http://www.mathycathy.com/blog/2013/08/simplest-inquiry-strategy-ever-discovered-completely-by-accident/

I really like this nice collection of Number Sense videos. Nine videos in all. Take a look at one of them below and the rest of them here
Curriculum Tags: All


A nice little tidbit of data
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U

Need some data about TV watching. Maybe after you see your favourite show
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U





Friday, September 13, 2013

Math Links for Week Ending Sept. 13th, 2013

I am not sure how long this has been around but it seems to be a repository for all of the in house created sketches for GSP. Very inviting site and these sketches really exploit the power of Geometer's Sketchpad. There is stuff for all grade levels and even an indicator for those sketches that are iPad friendly.
Curriculum Tags: All
http://www.dynamicnumber.org/

Despite the title of this TEDx talk (Why Math Instruction is Unnecessary) I like how John Bennett takes us on his journey of discovery that much of the math that we teach is basically just a construct of our curriculum and not really necessary for everyday life. But the real focus of his message is that problem solving and critical thinking are.
Curriculum Tags: All
http://www.youtube.com/watch?v=xyowJZxrtbg

Many have long said that mathematics was the way to a high paying job. Well now I guess we have the data to prove it. The US Census has always asked about income and level of schooling but in their most recent surveys they have also asked what people's majors were. The Planet Money people have a great podcast on the results (long and short versions below). And the survey says: Applied math (engineering, computer science etc) seems top the list. What's at the bottom? Psychology. A couple of things that resonated with me about this were a) that, in general, it didn't matter where you got your degree and b) it really had more to do with supply and demand. If you want the actual pdf of the full study click here.
Curriculum Tags: All
Long version http://www.npr.org/blogs/money/2013/09/11/221417806/episode-485-whats-your-major
Short version http://www.npr.org/blogs/money/2013/09/10/219372252/the-most-and-least-lucrative-college-majors-in-1-graph

I am way behind on the I Speak Math blog posts but this one about how now there are more #mathchat had a Twitter chat about the math topic of the day. Now there are these more specific chats that go on. From middle school math all the way to calculus and statistics. Take a look here for your favourite topic.
specific "chats" about math on Twitter now. For a while every Monday and Friday (I think)
Curriculum Tags: All
http://ispeakmath.org/2013/09/02/weekly-math-subject-chats-are-live-now/

Another great TED talk about visualizing data. Chris Jordan is an artist who creates social commentary art that is often more than it seems (when you look closely at it). For example an image of the Titanic made of 67000 images of mushroom clouds (equal to the number of metric tons of uranium/plutonium being stored temporarily around the US). Check out his website (http://www.chrisjordan.com/) to be able to zoom into his works (there are a lot of them). Here is a perfect way to mix social justice and data management.
Curriculum Tags: MDM4U
http://www.ted.com/talks/chris_jordan_pictures_some_shocking_stats.html

"Would you rather...." is a blog that specializes in posing questions that asks the reader to make a choice of two similar situations and use math to justify that choice. There are a lot of different math topics that could be used here but it seems many fit into the Number Sense strand (I could be wrong here as I just skimmed the site). None the less these are great starting points for math conversations.
Curriculum Tags: Gr7, Gr8, MFM1P, MPM1D
http://wyrmath.wordpress.com/

These math "mysteries" are all really attainable for many students to understand (ie they can easily mechanically verify them) but they are some of the most famous unproven theorems. A neat way for students to see how proving something definitely can be very difficult. Included are the Goldbach Conjecture, Perfect Numbers and Mersenne Primes (plus people have suggested others)
Curriclum Tags: All
http://plus.maths.org/content/maths-minute-number-mysteries



I like this App to visualize Factoring from NCTM's Illuminations. Too bad it doesn't work on an iPad but its a nice visualization
Curriculum Tags: Gr7, Gr8
http://illuminations.nctm.org/ActivityDetail.aspx?ID=64



Here is a great way to introduce FOIL in secondary and in elementary I like the suggestion made by @emergentmath "Here's your lesson plan tomorrow: Stop the video after 1:30 and ask "why does this work?""
Curriculum Tags: Gr7, Gr8, MPM1D, MFM2P
http://www.youtube.com/watch?v=PYrgjMubh-c


I don't think you will ever need to describe how a Venn diagram works if you just show this example. There are more on the main site (http://stephenwildish.co.uk/) though not all dealing with data.
Curriculum Tags: MDM4U
http://stephenwildish.co.uk/images/holy.jpg

Redbull sponsored a contest to take the image of extreme thrill seekers in action. Some cool pix but this one fits quite well with modelling quadratics. Just import this into GSP or Geogebra and model the strobed snow boarder with a quadratic. Note that it may look kind of flattened out but that has to do with the fact that the snow boarder is rotating in flight. But it's the centre of mass that follows a parabolic arc.
Curriculum Tags: MPM2D, MFM2P, MBF3C, MCF3M, MCR3U
http://www.wired.com/rawfile/2013/09/red-bull/#slideid-39351




Friday, March 15, 2013

Math Links for Week Ending Mar 15, 2013

Super Ultimate Graphing Challenge is a very nice game based app that looks at distance time graphs. Its not an app for the iPad but for the computer (its flash based so unless you have something like Rover you won't be able to use it on the iPad). But it does use the game interface really well. And of course, heed the warning: "you may learn physics if you play this game"
http://www.theuniverseandmore.com/SUGC/
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P, MFM2P


Have you tried the app 4 Pics 1 Word (iTunes, Android)? Its not bad but one blogger has started to create a math edition. This would be a great way to introduce vocabulary to the math class (any class really). Check it out.
http://reflectivemaths.wordpress.com/2013/02/26/4-pics-1-word/
Curriculum Tags: All
Great data from Canadian Schools, Air Canada Jazz Pilots and Chris Hadfield on the ISS regarding Neutron Radiation. Thanks to Sue Di Laudo for this one
http://www.explorecuriocity.org/
Curriculum Tags: MPM1D, MFM1P, MDM4U, MAP4C






I thought this would be a great resource for a data management class. Its from the radio show RadioLab and this is an audio podcast about science. In this episode they use data from counting words to diagnose Alzheimer's. Specifically in Agatha Christie. Then they take it further to suggest that this could even be used as a indicator of increased chance of Alzheimer's by reading essays you have written at the age of 18. Very cool use of data
http://www.radiolab.org/blogs/radiolab-blog/2010/may/05/vanishing-words/
Curriculum Tags: MDM4U



Friday, March 8, 2013

Math Links for Week Ending Mar 8, 2013

I am usually not an advocate of politically charged statistics without references but it is my understanding that this data isn't too far from the truth. The thing that makes this really nice though is that it is a really good example of data visualization and perception
http://www.youtube.com/watch?v=QPKKQnijnsM
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U, MAP4C


A few weeks ago TI announced the new iPad app for nSpire. At the time it wasn't available in Canada. That has changed. Now you can get it here in Canada and if you act now (by March 10th) you can get it for the special discounted rate of $4.99 (regular price is $29.99). So don't delay. Watch a video demo here
Curriculum Tags: All
This is a great site for real time Earthquake data. Put in your parameters and then it spits out a table with all the relevant data about earthquakes in your search parameters. You can then copy and paste the data into Excel or Fathom with only minimal massaging. Here is my Fathom file of the 2011-2012 earthquakes.
http://www.ngdc.noaa.gov/nndc/struts/form?t=101650&s=1&d=1
Curriculum Tags: MBF3C, MDM4U, MAP4C

Another fun source of data is Wolfram Alpha. For example you can, for example, get data about the popularity of your name. For example, here is the data on my first name, David.
http://www.wolframalpha.com/input/?i=david
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U, MAP4C

Also from Wolfram Alpha is some pictures drawn with functions. I like the Rolling Stones the best as it contains the symbol for Pi (look closely)
http://blog.wolframalpha.com/2013/01/08/mathematics-as-an-art-form-visualizing-equations/
Curriculum Tags: MCR3U

Speaking of Pi, check out my Pinterest page on Pi day since its coming up next week
http://pinterest.com/davidpetro314/pi-day/
Curriculum Tags: All

Lists are great time wasters. So why not a list of awesome videos about Math. This time from the social media site Mashable.
http://mashable.com/2013/02/19/8-cool-applications-math/
Curriculum Tags: All




Here is a nice picture of a kids project that is a great representation of the amount of sugar in drinks. Its not perfect (eg the bags used are different sizes) but that could be a point of discussion.
http://i.imgur.com/pzqfmru.jpg
Curriculum Tags: Gr7, Gr8, MBF3C, MDM4U