edtechdev

Yeah the lack of open source prevented me from committing to observable, too, so I look forward to trying dataflow out.

Just in case this is of interest to others, some other open source browser-based computational notebook tools include:

* Starboard https://starboard.gg/ * And of course there's always Jupyter, but it requires a server component

And this isn't the same thing, more of a javascript playground (open source alternative to codepen and the like), but see also Slingcode: https://slingcode.net/

This is a junk article written by a right winger who writes for the "American Council on Science and Health" which you can read more about here:

https://www.motherjones.com/politics/2013/10/american-counci...

This article was written just to troll up attention for his book that came out the same year (2012) with a title that makes the bias more obvious: "Feel-Good Fallacies and the Rise of the Anti-Scientific Left."

I've never heard of the guy before, but it only took a minute of googling to find that out.

I recommend people try the "lateral reading" technique when you come across articles like this. Essentially, Google the source to see if it's biased and unreliable like this is. More on lateral reading and the SIFT technique (stop, investigate, find, trace) https://library.nwacc.edu/lateralreading/sift

There's actually decades of research on how to more effectively teach math, including the effectiveness of inquiry based learning approaches, which are more effective.

See the MAA's Instructional Practices Guide: https://www.maa.org/programs-and-communities/curriculum%20re...

Here's info on research on the effectiveness of inquiry learning in math: https://theconversation.com/who-learns-in-maths-classes-depe... https://www.colorado.edu/eer/research-areas/student-centered...

Doing some more digging, apparently AdGuard just created a URL tracking filter a couple of weeks ago that we should be able to enable in either the AdGuard or Ublock Origin (or perhaps other ad-blocking) Firefox mobile addons eventually: https://adguard.com/en/blog/adguard-url-tracking-filter.html

Or you can manually add the filter now. After installing the Ublock Origin addon in firefox mobile, I clicked on the 3 dots -> Addons -> Ublock Origin -> Open the dashboard -> Filter lists -> Import... and pasted this URL (from the top of the above link): https://raw.githubusercontent.com/AdguardTeam/FiltersRegistr...

I tested by sharing a URL with UTM and other parameters, and it did strip them.

Does anyone know of something like this that works on mobile? Couldn't find a Firefox mobile add-on that does this.

Arnold Schwarzenegger based programming language https://github.com/lhartikk/ArnoldC

This site had more intuitive explanations for things like this, including imaginary numbers, calculus, etc

https://betterexplained.com/articles/rethinking-arithmetic-a...

Maybe it depends on what's the next platform. C/C++ was sort of a base programming language for desktop apps, javascript for the browser, and Objective C & Java for mobile. Server apps have been a mix of PHP/python/java/ruby/node.js.

I guess my 2 wild guesses for the long-term future might be either or both 1) a visual/block programming tool (which perhaps might perhaps be more usable in virtual reality type environments) or 2) natural language programming (programming in English and/or other natural languages), which might be more usable in both virtual reality and chat environments.

The main challenge is students who can't read yet vs. those who can. In an after-school elementary school coding club I did a while back, I mainly used https://code.org/

If Scratch is too advanced for the youngest of kids, try ScratchJr: http://www.scratchjr.org/

The kids also really liked Lightbot. Unfortunately, the web version uses Flash which means it won't run nowadays on most computers. There are apps though, including a LightBotJr version for 4+.

Here's a google doc with several other elementary school coding & robotics resources, although I haven't updated it in a while: https://docs.google.com/document/d/1r1b2CM1uTdST47IbWa7zlZYm...

Yeah, why would something well-written be on Wikipedia?

It's definitely not more notable than a list of butterflies on stamps of Australia https://en.wikipedia.org/wiki/List_of_butterflies_on_stamps_...

I ran across blockstack recently and was wondering if it fit the bill. It seems like Solid minus the linked data stuff. The user keeps control of their own data just like with Solid. They have some initial apps listed here: https://app.co/blockstack

In comparison, here's a list of some Solid apps: https://github.com/solid/solid-apps

But blockstack also has a cryptotoken: https://news.ycombinator.com/item?id=20413420

At the bottom of the comments, a member of the Hypercard team said it was killed in 92, before Jobs returned.

There still is no free development tool out there that matches what Hypercard did in terms of power and ease of use. We're still coding with languages designed for constraints that disappeared decades ago.

That's due to encoding specificity. You aren't just learning the 'thing' but the context in which you learned the thing: https://en.wikipedia.org/wiki/Encoding_specificity_principle

It's better to learn things in or close to the contexts in which you will use them. That's the heart of situated learning / problem-based learning / simulations, etc: https://en.wikipedia.org/wiki/Situated_learning

Yes, if they were disguised as ordinary links.

Dart was originally meant to be a superior alternative to JavaScript. They originally wanted native Dart support in the browser (dartium) just like there is native JavaScript support.

Kotlin was/is meant to be a superior alternative to Java.

Java != JavaScript

Flutter I'd say is more like a successor to Flash. Dart is now relegated primarily to being Flutter's ActionScript.

Classic Google Sites will be discontinued in 2021: https://gsuiteupdates.googleblog.com/2019/01/google-sites-im...

Use Firefox Focus browser on mobile. It is more privacy focused than Firefox and other browsers, and blocks ads instead of replacing them with its own like the Brave browser does.

That's not what this study is about. There are already plenty of studies showing weight loss or reduced weight gain when consuming low calorie sweeteners vs sugar. And there are no ill health effects such as causing cancer, which a lot of people still believe. https://www.hsph.harvard.edu/nutritionsource/healthy-drinks/...

There have been numerous refutations of this opinion piece: https://edtechdev.wordpress.com/2007/07/25/problem-based-lea...

As well as criticisms of their central underlying theory, cognitive load theory, which is unfalsifiable: https://edtechdev.wordpress.com/2009/11/16/cognitive-load-th...

And there is a wealth of counter-evidence on how constructivist inspired teaching techniques (like active learning, inquiry learning, problem-based learning) and technologies (like simulations, modeling tools, games) are more effective for student learning: https://edtechdev.wordpress.com/2015/04/03/evidence-for-vari...

Unfortunately, fans of the neo-traditional perspective presented in this article plastered it all over Wikipedia 10 years ago, overwriting and ignoring any contrary evidence and opinions, leading to today: https://edtechdev.wordpress.com/2007/12/26/an-argument-for-k...

Cognitive load theory is unfalsifiable and has numerous conceptual and methodological problems: https://edtechdev.wordpress.com/2009/11/16/cognitive-load-th...

Get off https://my.lawn/!

It's better than forcing students to pay for proprietary statistical analysis tools like SPSS, etc.

Calculus in 20 minutes video: https://www.youtube.com/watch?v=L5GmSYipz6A

More seriously though, I like the intuitive explanations and analogies used at BetterExplained: https://betterexplained.com/calculus/

Otherwise, you're just memorizing formulas you don't really understand and will forget eventually.

There is actually a whole field of research on mathematics education. I'm sure this 28 year old essay is nice, but probably the most up to date and comprehensive guide to evidence-based teaching of college math is this free Instructional Practices Guide from the MAA: https://www.maa.org/programs-and-communities/curriculum%20re...

For K-12 math education, I haven't been keeping as close an eye, but there are several books and resources, such as work by Jo Boaler: https://www.youcubed.org/resource/books/

It's techcrunch

This is blogspam. Bookwormhub is a service where you pay people to write papers for you

Here's the code

https://github.com/harc/seymour

https://github.com/harc/seymour-live2017

It's always interesting how many commentors' intuitions about education are completely opposite of what research shows.

Active learning has been shown in hundreds of studies to be superior to traditional lecture-based instruction. Here's a recent meta-analysis: http://www.sciencemag.org/news/2014/05/lectures-arent-just-b... http://www.pnas.org/content/111/23/8410

And you don't need to learn from lecture 'first' to 'prepare' you for subsequent group learning or real-world learning. In fact, the opposite has been shown in research studies. Let students get their hands dirty with some field experience or try out a simulation even though they aren't quite ready for it yet or try to figure out some data, etc., and then when they receive a lecture on a related topic afterward, they will learn much more from it, because they can relate it back to their previous experience. They have a reason to listen to the lecture, rather than just trying to listen and memorize for a some future test or experience they know or care little about. Several studies have compared for example giving a lecture first followed by a simulation or other experience, vs. the other way around. And lecture-first is always inferior. See for example research on productive failure. Here are some examples: http://ideas.time.com/2012/04/25/why-floundering-is-good/ https://ww2.kqed.org/mindshift/2016/04/19/how-productive-fai... https://bulletproofmusician.com/productive-failure-how-strat... http://manukapur.com/productive-failure/

I wonder about accessibility of flutter widgets though, since they aren't just wrappers for native widgets.

Looks like it's still not accessible https://github.com/flutter/flutter/issues/10562 The issue was brought up a year ago too https://groups.google.com/forum/m/#!topic/flutter-dev/xwUJ7D...

There's been some work on english language versions of mathematical expressions, which at the very least can help with accessibility.

Handbook for Spoken Mathematics (1983) http://web.efzg.hr/dok/MAT/vkojic/Larrys_speakeasy.pdf

MathPlayer https://www.dessci.com/en/products/mathplayer/

TalkMaths http://talkmaths.sourceforge.net/

Language and Mathematics: Bridging between Natural Language and Mathematical Language in Solving Problems in Mathematics http://file.scirp.org/pdf/CE20100300008_45591409.pdf