diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ef4824f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,20 @@
+# Created by https://www.gitignore.io/api/clojure
+
+### Clojure ###
+pom.xml
+pom.xml.asc
+*.jar
+*.class
+/lib/
+/classes/
+/target/
+/checkouts/
+.lein-deps-sum
+.lein-repl-history
+.lein-plugins/
+.lein-failures
+.nrepl-port
+
+# End of https://www.gitignore.io/api/clojure
+
+.DS_Store
\ No newline at end of file
diff --git a/week-3/README.md b/week-3/README.md
index 3267d19..4cc7c04 100644
--- a/week-3/README.md
+++ b/week-3/README.md
@@ -1,3 +1,8 @@
 ## Week 3
 
-Please add instructions for week 3 here.
+![Screenshot](http://i.imgur.com/e2OAVUk.gif)
+
+* a Rectangle
+  * that follows the mouse
+  * that changes color with the position of the mouse
+  * is connected to the edges of the screen by lines
diff --git a/week-3/animation/README.md b/week-3/animation/README.md
new file mode 100644
index 0000000..4f13b8b
--- /dev/null
+++ b/week-3/animation/README.md
@@ -0,0 +1,10 @@
+# Rainbow Lines&Rectangle
+
+![](http://i.imgur.com/e2OAVUk.gif)
+
+following the [ClojureBridge Workshop Material](https://github.com/ClojureBridge/drawing/blob/master/curriculum/first-program.md) and playing around with Quil!
+
+A project using [Quil](http://quil.info) in which you have:
+* a Rectangle 
+  * that changes color with the position of the mouse
+  * is connected to the edges of the screen by lines
diff --git a/week-3/animation/project.clj b/week-3/animation/project.clj
new file mode 100644
index 0000000..532d039
--- /dev/null
+++ b/week-3/animation/project.clj
@@ -0,0 +1,6 @@
+(defproject drawing "0.0.1-SNAPSHOT"
+  :description "FIXME: write description"
+  :url "http://example.com/FIXME"
+  :dependencies [[org.clojure/clojure "1.7.0"]
+                 [quil "2.2.6" :exclusions [org.clojure/clojure]]]
+  :main drawing.core)
diff --git a/week-3/animation/src/drawing/core.clj b/week-3/animation/src/drawing/core.clj
new file mode 100644
index 0000000..af08558
--- /dev/null
+++ b/week-3/animation/src/drawing/core.clj
@@ -0,0 +1,49 @@
+(ns drawing.core
+  (:require [quil.core :refer :all]))
+
+(defn setup []
+  (frame-rate 30)
+  (color-mode :rgb)
+  (stroke 255 0 0))
+
+(def my-width 400)
+(def my-height 400)
+
+(defn set-color [mx my]
+  ; set color according to the mouse position
+  ; lines
+  (stroke (abs (- mx 255))
+          (abs (- my 255))
+          (abs (/ (+ mx my) 2)))
+  ; rectangle
+  (fill (abs (- mx 255))
+        (abs (- my 255))
+        (abs (/ (+ mx my) 2))))
+  
+(defn size-rect [x y my-size]
+   (rect (- x (/ my-size 2)) (- y (/ my-size 2)) my-size my-size))
+
+(defn perspective-rec []
+  ; rectangle connected to the corners of the screen
+  (let [x (mouse-x)
+        y (mouse-y)
+        my-size (/ y 2)]
+   (line 0 0  (- x (/ my-size 2)) (- y (/ my-size 2)))
+   (line my-width 0 (+ x (/ my-size 2)) (- y (/ my-size 2)))
+   (line 0 my-height (- x (/ my-size 2)) (+ y (/ my-size 2)))
+   (line my-width my-height (+ x (/ my-size 2)) (+ y (/ my-size 2)))
+  ; rectangle that changes its size according to the mouse position
+   (size-rect x y my-size)))
+
+(defn draw []
+  (background 0)
+  (set-color (mouse-x) (mouse-y))
+  (perspective-rec))
+
+
+
+(defsketch hello-lines
+  :title "Responsive-Rainbow-Rectangle"
+  :size [400 400]
+  :setup setup
+  :draw draw)