'Graphics' and 'Functions' in draft

docs/afternoon_session/functions.md

@@ -0,0 +1,106 @@
+# Functions
+
+!!!- info "Learning objectives"
+
+    - Use a for loop
+    - Write a function without an argument and without a return type
+    - Write a function that calls a function
+    - Write a function that requires an argument
+    - Write a function with a return value
+
+???- question "For teachers"
+
+    Teaching goals are:
+
+    * Learners have used a for loop
+    * Learners have written functions
+
+    Lesson plan:
+
+    * 5 mins: prior knowledge
+    * 5 mins: presentation
+    * 15 mins: challenge
+    * 5 mins: feedback
+
+## Overview
+
+
+## Exercises
+
+### Exercise 1: using a for loop
+
+!!!- info "Learning objectives"
+
+    - Use a for loop
+
+Read the following sections of [How to Think Like a Computer Scientist: Learning with Python 3](https://openbookproject.net/thinkcs/python/english3e/index.html):
+
+- 3.2. Instances — a herd of turtles
+- 3.3. The for loop
+- 3.4. Flow of Execution of the for loop
+- 3.5. The loop simplifies our turtle program
+
+Then do exercise 
+- 3.8.1
+- 3.8.5
+
+### Exercise 2: a simple function
+
+!!!- info "Learning objectives"
+
+    - Write a function without an argument and without a return type
+
+Read the following sections of [How to Think Like a Computer Scientist: Learning with Python 3](https://openbookproject.net/thinkcs/python/english3e/index.html):
+
+- 4.1. Functions
+
+Then do exercise:
+
+- 4.9.1
+
+### Exercise 3: write a function that calls a function
+
+!!!- info "Learning objectives"
+
+    - Write a function that calls a function
+
+Read the following sections of [How to Think Like a Computer Scientist: Learning with Python 3](https://openbookproject.net/thinkcs/python/english3e/index.html):
+
+- 4.2. Functions can call other functions
+
+Then do exercise:
+
+- 4.9.2
+
+### Exercise 3: write a function that requires an argument
+
+!!!- info "Learning objectives"
+
+    - Write a function that requires an argument
+
+Read the following sections of [How to Think Like a Computer Scientist: Learning with Python 3](https://openbookproject.net/thinkcs/python/english3e/index.html):
+
+- 4.4. Functions that require arguments
+
+Then do exercise:
+
+- 4.9.3
+
+### Exercise 4: write a function with a return value
+
+!!!- info "Learning objectives"
+
+    - Write a function with a return value
+
+Read the following sections of [How to Think Like a Computer Scientist: Learning with Python 3](https://openbookproject.net/thinkcs/python/english3e/index.html):
+
+- 4.5. Functions that return values
+
+Then do exercise:
+
+- 4.9.7
+- 4.9.8
+
+## Links
+
+ * [How to Think Like a Computer Scientist: Learning with Python 3](https://openbookproject.net/thinkcs/python/english3e/index.html)

docs/afternoon_session/graphics.md

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+# Graphics
+
+!!!- info "Learning objectives"
+
+    - Make a first scatter plot
+    - Rehearse running a script that uses an import
+    - Rehearse that graphics need X-forwarding
+
+???- question "For teachers"
+
+    Teaching goals are:
+
+    * Learners hear about matplotlib
+    * Learners may find out again that X-forwarding is important
+    * Learners again have gotten 'stuff to work'
+
+    Lesson plan:
+
+    * 5 mins: prior knowledge
+    * 5 mins: presentation
+    * 15 mins: challenge
+    * 5 mins: feedback
+
+## Overview
+
+Sometimes one wants to make a plot, such like a scatterplot or barchart.
+Matplotlib is a popular Python package to make plots.
+Here we experience how easy/hard it is to use Matplotlib on Rackham.
+
+## Exercises
+
+### Exercise 1: Use matplotlib to show a plot
+
+!!!- info "Learning objectives"
+
+    - Make a first scatter plot
+    - Rehearse running a script that uses an import
+    - Rehearse that graphics need X-forwarding
+
+Read matplotlib's 'Pyplot tutorial' [here](https://matplotlib.org/stable/tutorials/pyplot.html#sphx-glr-tutorials-pyplot-py).
+
+Copy-paste the first script on that page to a script and get it to work. 
+Do you expect this to be easy?

docs/afternoon_session/overview.md

@@ -25,7 +25,7 @@ This module introduces the fundamentals of Python programming language.
 | 14:00-14:15   | Break                         |
 | 14:15-15:00   | [File IO](files.md), [command line arguments](command_line_arguments.md) |
 | 15:00-15:15   | Break                         |
-| 15:15-16:00   | Graphics, functions           | 
+| 15:15-16:00   | [Graphics](graphics.md), [functions](functions.md)            | 
 
 Link to HackMd: <https://hackmd.io/@dianai/uppmax-intro/>