squeakland April 2008

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21 participants
18 discussions

Squeakers Film Link on Squeakland.org wrong
by Brad Fuller 30 Apr '08

30 Apr '08

Thought I'd pass this along: The "Squeakers" link on this page: http://www.squeakland.org/school/schoolmain.html points to: http://www.squeakersfilm.org/ Which seems to be run by a domain squatter.

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Part II of my advocating article about Squeak/Smalltalk programing for education
by Hilaire Fernandes 27 Apr '08

27 Apr '08

In this series of articles, I will highlight the advantages of using Squeak/Smalltalk to develop educational software. At some point and based on my experience, I will compare with other development languages. The focus of this article is for educators and developers interested in software programming education applications. In these articles, don't expect to learn about Smalltalk/Squeak programming, my goal is simply to give an overall picture, based on real experience. Feedback is of course very welcome. In this article I will discuss about the Smalltalk image concept and its consequences. http://blog.ofset.org/hilaire/index.php?post/2008/04/24/Why-you-could-consi… -- http://blog.ofset.org/hilaire -- http://blog.ofset.org/hilaire

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Squeak activity about angle
by Hilaire Fernandes 24 Apr '08

24 Apr '08

A simple pedagogical activity about angle for primary school. You need to have DrGeoII installed in your Squeakland, so you can open the project from your browser. Alternatively you can use DrGeoII packaged for your OS: http://wiki.laptop.org/go/DrGeo#I_don.27t_have_an_XO.2C_can_I_use_Dr._Geo_I… Then you drag and drop the activity project file into it. Does it sound clear? Hilaire -- http://blog.ofset.org/hilaire

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Unscalable picture Re: [Etoys] Squeak activity about Measure
by karl 23 Apr '08

23 Apr '08

Hilaire Fernandes wrote: > How do you turn image dropped in the image as ImageMorph? > Inspect the SketchMorph and do it: ImageMorph new image: originalForm;openInWorld Or file in this change set that adds a menu item that toggles SketchMorphs scalability. Karl > Hilaire > > 2008/4/22, karl <karl.ramberg(a)comhem.se>: > >> Hilaire Fernandes wrote: >> >> >>> A simple pedagogical activity about measure for primary school students. >>> http://swiki.ofset.org:8000/super/337 >>> You need to install Squeakland: >>> http://www.squeakland.org/ >>> >>> Eventually I would like to be able to lock the resize of the sticker. >>> >>> >>> Hilaire >>> >>> >>> >>> >> My French is really horrible but I recognize animal names :-) >> If you use ImageMorphs they will not resize. >> >> Karl >> >> > > > 'From etoys3.0 of 24 February 2008 [latest update: #1985] on 22 April 2008 at 4:47:36 pm'! "Change Set: UnscalableSketch Date: 22 April 2008 Author: Karl Ramberg Adds a menu item to toggle scalability if a picture"! Morph subclass: #SketchMorph instanceVariableNames: 'originalForm rotationStyle scalePoint framesToDwell rotatedForm unscalable ' classVariableNames: '' poolDictionaries: '' category: 'Morphic-Basic'! !SketchMorph methodsFor: 'geometry' stamp: '<no author> 4/22/2008 16:21'! extent: newExtent "Change my scale to fit myself into the given extent. Avoid extents where X or Y is zero." unscalable ifNotNil:[ unscalable ifTrue:[^self]]. (newExtent y = 0 or: [ newExtent x = 0 ]) ifTrue: [ ^self ]. self extent = newExtent ifTrue:[^self]. scalePoint _ newExtent asFloatPoint / (originalForm extent max: 1@1). self layoutChanged. ! ! !SketchMorph methodsFor: 'menu' stamp: 'kfr 4/22/2008 16:36'! toggleUnscalable ^self unscalable: (self unscalable not)! ! !SketchMorph methodsFor: 'menu' stamp: 'kfr 4/22/2008 16:30'! unscalable unscalable ifNil:[unscalable _ false]. ^unscalable! ! !SketchMorph methodsFor: 'menu' stamp: 'kfr 4/22/2008 16:42'! unscalableString ^ (self unscalable ifTrue: ['<yes>'] ifFalse: ['<no>']) , 'unscalable image' translated! ! !SketchMorph methodsFor: 'menu' stamp: 'kfr 4/22/2008 16:29'! unscalable: aBoolean unscalable _ aBoolean! ! !SketchMorph methodsFor: 'menus' stamp: 'kfr 4/22/2008 16:43'! addToggleItemsToHaloMenu: aCustomMenu "Add toggle-items to the halo menu" super addToggleItemsToHaloMenu: aCustomMenu. aCustomMenu addUpdating: #unscalableString target: self action: #toggleUnscalable. (Smalltalk includesKey: #B3DRenderEngine) ifTrue: [ aCustomMenu addUpdating: #useInterpolationString target: self action: #toggleInterpolation. ]. ! ! SketchMorph removeSelector: #unscaleable! Morph subclass: #SketchMorph instanceVariableNames: 'originalForm rotationStyle scalePoint framesToDwell rotatedForm unscalable' classVariableNames: '' poolDictionaries: '' category: 'Morphic-Basic'!

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re: Error loading project with plugin.
by Jerome Peace 23 Apr '08

23 Apr '08

[Squeakland] Error loading project with plugin. or what do you do with MorphicExtentionPlus when the class isn't there? Hi Scott, (Hi Yoandy) I ran into this problem with the olpc image. On a lucky guess I answered the question about which "modern" class to use to replace "MorphicExtentionPlus" with "MorphicExtention" (the old class). This, to my surprise, worked. So I took a closer look and saw that so far the ..Plus extentions purpose was to optimize layout time by making ivars out of properties in the otherProperties dictionary. By using the old extention the optimization is lost but nothing is really broken. Maybe someone can formalize this workaround? Yours in curiosity and service, --Jerome Peace ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

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Squeak activity about Measure
by Hilaire Fernandes 22 Apr '08

22 Apr '08

A simple pedagogical activity about measure for primary school students. http://swiki.ofset.org:8000/super/337 You need to install Squeakland: http://www.squeakland.org/ Eventually I would like to be able to lock the resize of the sticker. Hilaire -- http://blog.ofset.org/hilaire

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Error loading project with plugin.
by Yoandy Rodriguez Martinez 22 Apr '08

22 Apr '08

Hello: First of all thanks to Scott and all who answered my previous post, Scott you were right, I wasn't including the class in the project change set. I solved it by using the dual change sorter as you said but now when I publish the project the plugin image complains about not knowing MorphExtensionPlus, the thing is that class is supposed to be in the plugin version I'm using. Any advice will be appreciated. Thanks in advance. PD. And again sorry for my English.

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how to include a new class into a project
by Yoandy Rodriguez Martinez 19 Apr '08

19 Apr '08

Hello: I'm working in a project about using Squeak to teach physics in College. I've made some new Morphs and created a new morphic project who contains them. After saving the project and publishing it into the Web, the plugin image does not recognizes the new classes I've included. Have I done anything wrong or it is supposed to be like that? PD. I've been using squeak only for 3 months so sorry if this is a lame question (and sorry for my poor English too). Thanx in advance

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two new videos from waveplace st john pilot
by Timothy Falconer 15 Apr '08

15 Apr '08

Hi everyone, We've just posted two new videos from the St John Waveplace pilot, which concluded three weeks ago. The first shows mentoring during the pilot. The second shows students presenting their Etoys storybooks. 1) Scenes from the St John pilot (4 minutes) http://waveplace.com/locations/usvi/movie.jsp?id=45 2) The St John Storybook Awards (8 minutes) http://waveplace.com/locations/usvi/movie.jsp?id=44 We will be posting the actual storybooks to our website soon so you can see them for yourself. In other news, the Haiti pilot will resume next week, since things have calmed down in Port-Au-Prince. The kids and teachers are well. As always, if you'd like to hear more from us, please subscribe to our newsletter or donate money on our website to help with our courseware and pilots. Take care, Tim -- Timothy Falconer Waveplace Foundation http://waveplace.com 610-797-3100

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Etoys by Example
by Joe Apuzzo 11 Apr '08

11 Apr '08

So what is becoming obvious to me is the lack of Etoys information in one place, like "Squeak by Example" book is. I'm sure that "Etoys by Example" does not exist. I know that it would be as much work as "Squeak by Example", but I think it's a worthy endeavor. Teachers should have all the information on Etoys in one place with plenty of examples of how to use each object. Also geared towards Teaching and Teachers not programmers as it's counterpart is. Finally I think that sticking to book form works best with grade and middle school teachers, web pages are great but traditional books will be better received in that community. The most important thing is to promote Etoys in the learning environment, and dispel the confusion ( which I have personally encountered ) So what do you think? How do we get this off the ground? Slightly less frustrated Joseph Apuzzo Gnu_Joe www.mhvlug.org

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squeakland April 2008