MicroWorlds JR

MicroWorlds JR is a computer program using a simplified version of the Logo programming language to teach non-readers or early readers to program in Logo. It was first launched in 2004 by Logo Computer Systems, Inc. (LCSI), and as in their original line of MicroWorlds programs, the object on the screen begins as a turtle and can be controlled with basic commands to make it move. Differing from the Logo syntax developed by Seymour Papert and teams at MIT, MicroWorlds JR uses images to replace the command names, which are selected by the child to create turtle graphics. The turtle object can be given a variety of shapes that act as a costume for the turtle, and therefore lends itself to a variety of animations and creative stories and projects for younger students.

## Constructionism and the Spirit of Logo

Seymour Papert and Idit Harel have developed Constructionist learning theory, based upon the premise that children learn best by making things, not just by doing. Being involved in the creation of that which is new enables the teacher to join students as an authentic co-learner, thereby modelling the strategies of expert learners. Working through problems enhances a child's ability to see transfer in the knowledge they have acquired, and when creating with Logo much of the learning has to do with 'debugging' the programs to see intended results, as well as the understanding of what is relevant and efficient in deciphering and creating the code (Skillen, 2003).

## References

* Skillen, P. (2003). Transferring Knowledge with Technology. Learning and Leading With Technology. ISTE.Volume 30, (4) p.22-27.

## External links

* LCSI

* v
* t
* e

Logo programming language

Classic|

* Acornsoft Logo
* Atari Logo
* MSWLogo
* FMSLogo
* UCBLogo
* MicroWorlds
* MicroWorlds JR

Extensions|

* Lego Logo
* StarLogo
* NetLogo

With object extensions|

* ObjectLOGO
* ExperLogo

Other variants, extensions|

* ARLOGO
* LibreLogo

People|

* Hal Abelson
* Denison Bollay
* Wally Feurzeig
* Brian Harvey
* Seymour Papert
* Mitchel Resnick
* Cynthia Solomon

Category

* v
* t
* e

Lisp programming language

Features|

* Automatic storage management
* Conditionals
* Dynamic typing
* Higher-order functions
* Linked lists
* M-expressions (deprecated)
* Read–eval–print loop
* Recursion
* S-expressions
* Self-hosting compiler
* Tree data structures

Object systems|

* Common Lisp Object System (CLOS)
* CommonLoops
* Flavors

Implementations|

| Technical
standard(s)
exists|

| Common
Lisp|

* Allegro Common Lisp
* Armed Bear Common Lisp (ABCL)
* CLISP
* Clozure CL
* CMU Common Lisp (CMUCL)
* Corman Common Lisp
* Embeddable Common Lisp (ECL)
* GNU Common Lisp (GCL)
* LispWorks
* Macintosh Common Lisp
* Mocl
* Movitz
* Poplog
* Steel Bank Common Lisp (SBCL)
* Symbolics Common Lisp

|

Scheme|

* History
* Bigloo
* Chez Scheme
* Chicken
* Gambit
* Game Oriented Assembly Lisp (GOAL)
* Ikarus
* JScheme
* Kawa
* Larceny
* MIT/GNU Scheme
* MultiLisp
* Pocket Scheme
* Racket
* RScheme
* Scheme 48
* SCM
* SIOD
* T
* TinyScheme

ISLISP|

* OpenLisp

Nonstandard|

| Logo|

* MSWLogo
* NetLogo
* StarLogo
* UCBLogo

|

* Arc
* AutoLISP
* BBN LISP
* Clojure
* Dylan (Apple, history)
* Emacs Lisp
* EuLisp
* Franz Lisp, PC-LISP
* Hy
* Interlisp
* Knowledge Engineering Environment
* *Lisp
* LeLisp
* LFE
* Lisp Machine Lisp
* Maclisp
* MDL
* MLisp
* newLISP
* NIL
* PC-LISP
* Picolisp
* Portable Standard Lisp
* RPL
* S-1 Lisp
* SKILL
* Spice Lisp
* Zetalisp

Operating system|

* Common Lisp Interface Manager, McCLIM
* Genera
* Scsh

Hardware|

* Lisp machines
* TI Explorer
* Space-cadet keyboard

Community|

| Standards|

* Scheme Requests for Implementation
* Common Lisp HyperSpec
* X3J13

|

Education|

| Books|

* Common Lisp the Language
* How to Design Programs (HTDP)
* On Lisp
* Practical Common Lisp
* Structure and Interpretation of Computer Programs (SICP)

|

Curriculum|

* ProgramByDesign

Organizations|

* Apple Computer
* Bolt, Beranek and Newman
* Harlequin
* Lucid Inc.
* Massachusetts Institute of Technology (MIT)
* MIT Computer Science and Artificial Intelligence Laboratory (CSAIL)
* Stanford Artificial Intelligence Laboratory
* Symbolics
* University of California, Berkeley
* Xanalys

People|

* Edmund Berkeley
* Daniel G. Bobrow
* William Clinger
* R. Kent Dybvig
* Matthias Felleisen
* Robert Bruce Findler
* Matthew Flatt
* Phyllis Fox
* Paul Graham
* Richard Greenblatt
* Timothy P. Hart
* Louis Hodes
* Mike Levin
* David Luckham
* John McCarthy
* Robert Tappan Morris
* Joel Moses
* David Park
* Steve Russell
* Richard Stallman

Common Lisp|

* Scott Fahlman
* Richard P. Gabriel
* Philip Greenspun (10th rule)
* David A. Moon
* Kent Pitman
* Guy L. Steele Jr.
* Daniel Weinreb

Scheme|

* Shriram Krishnamurthi
* Guy L. Steele Jr.
* Gerald Jay Sussman
* Julie Sussman

Logo|

* Hal Abelson
* Denison Bollay
* Wally Feurzeig
* Brian Harvey
* Seymour Papert
* Mitchel Resnick
* Cynthia Solomon

* Category
* Category
* List

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