Add namespace on Turtle on teaching Clojure programming to beginners

deps.edn

@@ -82,6 +82,8 @@
   datascript/datascript                       {:mvn/version "1.7.8"}
   ;; io.github.pbaille/noon                      {:git/url "https://github.com/pbaille/noon.git"
   ;;                                              :git/sha "97677727bff20243dc15d5cafb821d4af9019842"}
+
+  com.google/clojure-turtle                   {:mvn/version "0.3.0"}
   }
 
  :mvn/repos {"osgeo" {:url "https://repo.osgeo.org/repository/release/"}}

src/learning/turtle/intro.clj

@@ -0,0 +1,115 @@
+(ns learning.turtle.intro)
+
+;; # Learning Clojure Programming in a Beginner-Friendly Way
+;;
+;; Tim and I were revisiting thoughts about [Power Turtle](https://power-turtle.com/),
+;; which we created and [talked about in 2017](https://youtu.be/Y3-53JoGPE4?si=PPwOxwh63Rb2qse0).
+;;
+;; * what makes it work
+;;   * interactivity
+;;     * Japanese colleague (Yoshikatsu)'s uncle's friend is a teacher. Saw that boys got really engaged by trying to crash/push things
+;;       * Yoshikatsu's observation: learning is through hands-on playing
+;;       * Yoshikatsu is a successful game app maker
+;;       * Observation of the difference in what engaged boys vs. girls (girls liked the storytelling aspect in an exercise to create animation)
+;;     * How do you ensure an interactive environment is set up to support the different avenues of interest
+;;       * storytelling; extreme pushing of boundaries; etc?
+;;     * Reflection: it's easy to be humbled & surprised at what aspects of a task people latch onto
+;;       * This is the value of the open-ended nature of Logo's interactive environment
+;;   * visual
+;;     * A picture is worth 1000 words
+;; * notebook style of programming
+;;   * worth thinking of this as different from REPL (even if similar)
+;;   * examples
+;;     * Clay
+;;     * Maria Cloud
+;;   * there is a storytelling aspect by virtue of there being text
+;;   * regarding clojure-turtle: the explanatory text lends itself well to a notebook env
+;;   * open question: can a notebook handle animation?
+;;   * downsides:
+;;     * more specific
+;;     * more complicated (setup & use) - these could be overcome
+;; * notebook style vs. Blockly style
+;;   * Neil Fraser - concern about Blockly become a walled garden unwittingly
+;;     * did a lot with Blockly Games to help learners to escape the walled garden and learn more of other types of programming
+;;   * In my own words, block-style coding is like a crutch: helps, but limits getting better
+;;   * Observations on Maria Cloud
+;;     - not very well used (is that true?)
+;;     - can't use your own text editor
+;;       - whereas Clay lets you
+;;       - although for a beginner, maybe that's okay/good
+;;   * generally: UI Block coding / Notebook environment vs. REPL/text coding
+;;     - if in a beginner-friendly environment (block coding / notebook), you still need to enable users to progress to text coding
+;; * Notebook + Turtle
+;;   * nowhere in the wild that combines turtle with notebooks
+;;   * Pros & Cons of options
+;;     * Maria Cloud - output webpage is entirely editable and executable, but not sure how to integrate new deps into env
+;;     * Clay - setup requires non-beginner knowledge (eng-level), output is static
+;;     * Power Turtle - point of comparison: no setup, no storytelling aspect
+;;   * Maria Cloud option
+;;     * can we include power-turtle editing environments' deps into project?
+;;     * can we include localized (translated) form names in your native language, ex: using cban?
+;;       * can we adapat cban to be a plugin for deps.edn as we did for Leiningen (lein-cban)?
+;;     * Maria Cloud makes it easy to create
+;;     * Maria Cloud doesn't distinguish between creating & publishing & editing mode
+;; * Lessons
+
+* What are we doing here?
+  - Premise
+  - Objective / encouragement of exploratory attitude
+    * secretly in service of effective learning, but don't tell the kids
+
+* Syntax
+
+* Basic commands
+  - notion of pen: penup pendown
+  - walking while drawing with pen down: fd rt lt bk
+    * start rt & lt angles with 90
+  - screen commands: clear home
+  - at this point, the student has full control over the canvas equivalent to an Etch a Sketch
+  - then explore things beyond Etch a Sketch -> basic math
+  - in fact, give students an Etch a Sketch to play with in case they have not done so before
+    * this helps break down the distinction between physical world & computer
+    * important point in the whole Mindstorms theorization of turtle's intent & scope
+  - explore
+    * draw a rectangle, square
+    * what else can you draw?
+  - basic math
+    * rt lt angles 180, 270, 360
+    * what if you want turn only halfway right?
+    * how did you compute that?
+    * what if you want to turn just 1/4 or 1/8 the way right?
+      - secretly, now we have non-integer numbers, and that's less fun and harder to figure out, assuming 45 wasn't already tricky for some
+    * can you get the computer to compute that for you?
+    * syntax for division
+    * syntax for addition, subtraction, multiplication
+      - although these are not yet super motivated in an obvious way
+  - explore
+    * draw other shapes
+      * show an image and have them match it. kind of like Tangrams, but super simple
+      * first: right triangle
+      * next: diamond (square on its side) - Western students understand "baseball diamond"
+      * universal (Western-oriented?) house shape
+      * any other universal pictures / icons that are recognizable
+    * introduce arc
+      * draw a circle
+      * draw a semicircle
+      * draw an "eye" (2 touching quarter circles)
+    * open explore more shapes
+    * locale specific shapes
+      * Tamil - kolam
+      * dreamcatchers
+      * letters in the language (ex: first letter of your name)
+      * etc.
+
+* Repetition
+
+* Functions
+
+* HOFs
+  * repeat
+
+* Recursion
+  * Stick, twig, branch, tree exercise
+
+
+