Linda and Raul, The train the trainer issue is a big thing for cracking the hard nut of getting J into the classroom. J can be difficult to 'get' initially, but one of the attractions for me is that it remains difficult to 'get' for a good distance through the learning curve because of its power. This makes it a challenging language for those who like to master their languages in 24 hours, or need to use them for instruction. Possibly a solution is to provide a slimmed down version of J that would provide the tools necessary for the grade level without having to understand the power of first-class functions. After all, I wouldn't give a scientific calculator to someone who had just mastered their times tables, but it would be appropriate to have one if you were exploring the ways to apply trigonometry in a high school physics course. Just a thought.
I also saw this blog post today [1] that goes a long way to giving a snapshot of the classroom realities that teachers face, as well as a solution that may work for creating motivation for using some of the tools of J. The post is good but also take a look at estimation180.com [2] as a resource for generating reasoning in the classroom. I also cross posted into chat as I think if we explore this topic further in this direction, it has limited appeal to the beta forum. Cheers, bob [1] http://powersfulmath.wordpress.com/2014/09/21/warm-ups-transformed-my-classroom/ [2] http://www.estimation180.com On Sep 21, 2014, at 10:15 PM, Linda Alvord <[email protected]> wrote: > I don't doubt that with a good teacher who want to teach something will be > able to succeed. There are difficulties when teachers and parents are > confronted with ideas and they charge ahead with them and the teachers or > parents seem unable to keep up with them. My guess is that students would > thrive in an environment where each had J available and they could explore it > together. The teachers however have lots of classes, student, homework to > check and these days seem to be available all the time on the web. They will > not have the same time to explore and move forward with the language. They > are working toward "the testing programs" that will assess their students and > their progress as well. It creates potential for insecurity. It a program is > big and supported at a higher level it may have a chance. Otherwise something > like facebook may turn the tide. I vacillate between optimism and pessimism. > So much for philosophy.... Linda > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Raul Miller > Sent: Sunday, September 21, 2014 2:50 PM > To: Beta forum > Subject: Re: [Jbeta] Maybe you'll see the ghosts > > I do not think youngsters would have any problem with +/ or any other > computing mechanism unless too much time is spent going over theory > and thoughts and not enough time is spent going over practical > aspects. > > For that matter, I think youngsters can understand quantum mechanics > if it's presented to them the right way, and if we do not ask too much > from them. Just keep it practical (for example: talk about the rainbow > effect of thin oil on water - and show it to them - and leave > development of more cerebral topics for later). > > Thanks, > > -- > Raul > > > On Thu, Sep 18, 2014 at 11:28 AM, Raul Miller <[email protected]> wrote: >> Another alternative is the data: url format and/or storing the image >> in the J session instead of in the temp directory. >> >> Whether those are good alternatives is another issue... >> >> Another alternative would be to upload the image to a hosting service. >> But that's probably better taken by the community (I'm not sure if >> Linda would feel like doing that, but maybe one of Henry's students >> would be interested in?) If that's too hard, then we probably should >> build a toolkit for building such things. >> >> Thanks, >> >> -- >> Raul >> >> >> On Thu, Sep 18, 2014 at 10:05 AM, bill lam <[email protected]> wrote: >>> jhs is server and a browser is the client. png are stored inside >>> ~temp of server so that a browser cannot delete and will not >>> wory about png files in server. >>> >>> jhs (the server) cannot know how long the client will need the >>> pngs so that jhs does not wish to delete those png. >>> >>> only the jhs admin (you) can decide when to clean up the >>> ~temp folder. >>> >>> An alternative is to send binary data of bitmap over the net and >>> let the browser to render it in canvas using html5. But not all >>> browsers can support this. >>> >>> Чт, 18 сен 2014, Linda Alvord написал(а): >>>> I just did the new update and everything looks good. I now have lots of >>>> png's. The way I imagine using this is in a terminal with kids making many >>>> images without worrying about pngs. Maybe viewmatp could be used when you >>>> want one and otherewise you wouldn't get one. Just an idea. >>>> >>>> This is really great! >>>> >>>> Linda >>>> >>>> -----Original Message----- >>>> From: [email protected] >>>> [mailto:[email protected]] On Behalf Of bill lam >>>> Sent: Thursday, September 18, 2014 4:52 AM >>>> To: [email protected] >>>> Subject: Re: [Jbeta] Maybe you'll see the ghosts >>>> >>>> Can you confirm the version number of viewmat which should be 1.0.56 >>>> otherwise update viewmat, restart jhs . Close all old webpages and start >>>> over. >>>> >>>> Also it would better to right click and save images as png than jpeg >>>> because images from viewmat are flat color (not photograph). >>>> On Sep 18, 2014 4:42 PM, "Linda Alvord" <[email protected]> wrote: >>>> >>>>> I reinstalled J803. This was true. Both looked great. I closed JHS. >>>> When >>>>> I opened it again and the mixed images were back. >>>>> >>>>> Sorry. Linda >>>>> >>>>> -----Original Message----- >>>>> From: [email protected] >>>>> [mailto:[email protected]] On Behalf Of Linda Alvord >>>>> Sent: Thursday, September 18, 2014 3:50 AM >>>>> To: [email protected] >>>>> Subject: Re: [Jbeta] Maybe you'll see the ghosts >>>>> >>>>> Everything looks great this morning! Thank you! Linda >>>>> >>>>> -----Original Message----- >>>>> From: [email protected] >>>>> [mailto:[email protected]] On Behalf Of Linda Alvord >>>>> Sent: Wednesday, September 17, 2014 10:44 AM >>>>> To: [email protected] >>>>> Subject: [Jbeta] Maybe you'll see the ghosts >>>>> >>>>> Here's the one that geets in trouble: Run it first in JHS. >>>>> >>>>> >>>>> >>>>> load 'viewmat' >>>>> >>>>> ]GRB=:1 0 2{"1 (#:i.8){0 255 >>>>> >>>>> >>>>> >>>>> GRB viewmat i.16 >>>>> >>>>> >>>>> >>>>> ]C=:i.12 >>>>> >>>>> GRB viewmat C >>>>> >>>>> >>>>> >>>>> ]D=:3 4$i.12 >>>>> >>>>> GRB viewmat D >>>>> >>>>> >>>>> >>>>> ]M=:5 3$i.15 >>>>> >>>>> GRB viewmat M >>>>> >>>>> >>>>> >>>>> GRB viewmat 7 3$i.21 >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> ]B=:4 4$i.16 >>>>> >>>>> GRB viewmat B >>>>> >>>>> >>>>> >>>>> GRB viewmat |: B >>>>> >>>>> >>>>> >>>>> GRB viewmat |.|:B >>>>> >>>>> >>>>> >>>>> ]T=:+/~i.16 >>>>> >>>>> >>>>> >>>>> GRB viewmat T;'T' >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> Now try this: >>>>> >>>>> >>>>> >>>>> load 'viewmat' >>>>> >>>>> ]GRB=:1 0 2{"1 ( #:i.8){0 255 >>>>> >>>>> >>>>> >>>>> at2=: 13 :'([:{:"1 *.) j./"1 y' >>>>> >>>>> >>>>> >>>>> C=:at2"0 /~ i:10 >>>>> >>>>> viewmat C >>>>> >>>>> >>>>> >>>>> viewmat C;'C' >>>>> >>>>> >>>>> >>>>> GRB viewmat C >>>>> >>>>> >>>>> >>>>> GRB viewmt C;'C' >>>>> >>>>> >>>>> >>>>> Finallly run the first one again. I get very starange results. Vista on >>>>> Windows JHS >>>>> >>>>> >>>>> >>>>> Here is a script ( in the reverse order of the first one above) for jqt. >>>>> >>>>> >>>>> >>>>> It sows what I want in JHS so I can see the images and the tables in a >>>>> readable order. Thanks for any suggestions. >>>>> >>>>> >>>>> >>>>> Actually thee the jqt version is run on my phone I like the images best, >>>>> but you can't see the data until you have looked at all the images. >>>>> >>>>> >>>>> >>>>> Linda >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> ---------------------------------------------------------------------- >>>>> For information about J forums see http://www.jsoftware.com/forums.htm >>>>> >>>>> ---------------------------------------------------------------------- >>>>> For information about J forums see http://www.jsoftware.com/forums.htm >>>>> >>>>> ---------------------------------------------------------------------- >>>>> For information about J forums see http://www.jsoftware.com/forums.htm >>>>> >>>> ---------------------------------------------------------------------- >>>> For information about J forums see http://www.jsoftware.com/forums.htm >>>> >>>> ---------------------------------------------------------------------- >>>> For information about J forums see http://www.jsoftware.com/forums.htm >>> >>> -- >>> regards, >>> ==================================================== >>> GPG key 1024D/4434BAB3 2008-08-24 >>> gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 >>> gpg --keyserver subkeys.pgp.net --armor --export 4434BAB3 >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
