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For teachers and students of nonlinear dynamics, differential equations, or mathematical biology: there are a lot of good resources for learning about simple models of epidemics with (unrealistic but tractable) random mixing. Here's one place to start: en.wikipedia.org/wiki/Compartme….
For network models of epidemics, you could start by playing with the Complexity Explorables at complexity-explorables.org/topics/epidemi… and then move on to links like these (there are many others...)

arxiv.org/abs/2001.02436 by @joel_c_miller

ncbi.nlm.nih.gov/pmc/articles/P…

tb.ethz.ch/education/lear…
For a survey of the history (and present and future) of math modeling applied to epidemiology, this 2017 paper by Fred Brauer gives a good overview: ncbi.nlm.nih.gov/pmc/articles/P…
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Steven Strogatz
@stevenstrogatz
Jo Boaler just showed me what a typical Japanese textbook looks like. Check out the thickness… Not!
In the next series of tweets, I’ll show you just how much thinking is expected from students. I love how conceptual and interesting these textbooks are. And this is for fifth grade!
Notice they are suggesting different ways to solve the same problem. Just like real mathematicians do
Read 6 tweets
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Steven Strogatz
@stevenstrogatz
I've long worried about this, and it is starting to happen: Some students aren't sure which way is "clockwise" anymore. (The screenshot below is from a student's answer on a test I just gave, in which the word "counterclockwise" was used.) #DeathOfAnalog
Just to clarify, since some people in the thread below found my tweet confusing: The image shown in the tweet is not the answer to a test question; it’s a mnemonic diagram that a student drew to help himself or herself remember which way is counterclockwise.
The mnemonic is drawn correctly (obviously!) and I have no objection to that. Nor do I have any objection to students using mnemonics; they can be helpful, especially during the stress of a test. What I found amazing was that the student felt the need to draw such a mnemonic.
Read 5 tweets
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Steven Strogatz
@stevenstrogatz
In this more sophisticated convention, which is often used in algebra, implicit multiplication (also known as multiplication by juxtaposition) is given higher priority than explicit multiplication or explicit division (in which one explicitly writes operators like × *  / or  ÷).
Under this more sophisticated convention, the implicit multiplication in 2(2+2) is given higher priority than the explicit division implied by the use of ÷.
That’s a very reasonable convention, and I agree that the answer to the original question is 1 if we are using that convention.
Read 5 tweets

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TeachingInNyc
@NycTeaching
So, where do I start. I know many schools who are using google classroom who gave this schedule to staff. It makes no sense to use a bell schedule for such a platform @NYCMayor @DOEChancellor (cont.)
1- there is NO WAY of tracking which students sign in and at what time using Google Classroom
2- even if you could, why reduce learning to 25min periods when this platform allows for students to have access to assignments 24/7, that's the whole point of online courses! (Cont.)
3- the time time flexibility of an online course is exactly what students need, especially in a time when many parents may be working from home and may need to use the computer
4- this takes NO ACCOUNT into families with multiple children who need to sign on
(Cont.)
Read 7 tweets
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Peter Adams
@PeterD_Adams
#Teachers: If you're trying to help students make sense of @ABC's false use of gun range footage in a report on Sunday about violence in Syria, here are some pointers:
1. Don't be cynical: Despite the online rantings of bad-faith partisans, there is no evidence that this was intentional nor ideologically-motivated. The conflict in Syria is highly newsworthy & the motivation here was almost certainly to get a sensational, great-for-TV clip.
2. Wouldn't make sense for ABC News: While using visuals like videos & photos in false contexts is an extremely common strategy employed by misinformation purveyors, it's almost always exposed. This strategy makes sense for opportunists looking for get quick clicks, or for...
Read 20 tweets
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Brandon Rohrer
@_brohrer_
If a beginner wanted to learn how to use git, where would you point them?
This is *really* helpful. Thanks all. I’ll roll the most popular and beginner-friendly ones into a post and release it later this week.
If you need to learn Git there are a lot of good resources and a few really great ones. Here are some crowd favorites.
brohrer.github.io/git_resources.…
Read 5 tweets
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Luke Oakden-Rayner
@DrLukeOR
1/ While this will play well (and get cited a lot) among the anti-#deeplearning holdouts, I was left a bit underwhelmed. I wanted to find some interesting edge cases where DL is not working (so we can work out solutions), but instead got a set of pretty unreasonable comparisons
2/ The deep learning models are tiny (4 conv layers) with justification that it works for MNIST. Everything works for MNIST! Linear regression works for MNIST!

xiaoliangbai.com/2017/02/01/ten…

We know in complex images deeper and more complex is vastly better, and does less overfitting!
3/ The linear and non-deep models are not "apples to apples" either though. This isn't deep learning vs simple models, it is deep learning vs incredibly complex feature engineering built up over decades of research.
Read 14 tweets
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Santa Fe Institute
@sfiscience
"You don't see radio changing gradually and suddenly become radar. #Darwin's theory doesn't work for #technology, and we have to make a new observation."

- W Brian Arthur at SFI today

#evolution #innovation #invention
"Novel technologies are constructed from existing technologies. These offer themselves as components for the construction of further technologies."

- W Brian Arthur at SFI today

#evolution #innovation #invention #technology #engineering #design
Unlike the two-parent #inheritance typical to (but not ubiquitous among) #complex organisms, #technology inherits features from n parents - a "vast ancestral #network" more like horizontal gene transfer networks in #bacteria.

W Brian Arthur on sumulating #invention on a chip:
Read 18 tweets
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Peter Adams
@PeterD_Adams
#Teachers: Here's a thread laying out how to create a digital forensics learning pathway using this false quote meme featuring Denzel Washington that recirculated last week:
Before you get students started on their digital forensics work, you might point out the misinformation pattern it fits. This rumor has gone viral three separate times: first during the 2016 campaign, then again after Washington was nominated for an Oscar in February 2018, and...
...then again last week when Kanye West's tweeted statement of support for President Trump sparked a broader conversation about the political loyalties of the African American community. So one lesson here is that viral rumors recirculate when new contexts for them emerge.
Read 22 tweets

Trending hashtags

#TechQuest #GOPTaxScam #photogrammetry #affordance #unroll #film #ForAll #students #NSed #IamAudacious #evolution #CV #obesity #Psychology #FearPorn #iSpeak #Darwin #Teachers #Hostel #Netflix #edu #network #fashon #education #swahilifix

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