edits 1

Author: tomvannuenen

lessons/1_Functions_and_Conditionals.ipynb

@@ -53,21 +53,26 @@
    "source": [
     "## Recap\n",
     "\n",
-    "If the following concepts are unclear to you, we recommend you attend [Python Fundamentals](https://dlab.berkeley.edu/training/upcoming-workshops) first!\n",
+    "In [Python Fundamentals](https://dlab.berkeley.edu/training/upcoming-workshops), we covered the following:\n",
     "\n",
     "**Variables** are names attached to particular values.\n",
     "* To create a variable, you assign it a value and then start using it.\n",
     "* Assignment is done with a single equals sign `=`.\n",
     "* When we write `n = 300`, we are assigning 300 to the variable `n` via the assignment operator `=`.\n",
     "\n",
+    "**Data types** are classifications of data. \n",
+    "* There are a lot of data types in Python, such as integers (`int`) and strings (`str`).\n",
+    "* Some data types are called **data structures** because they allow us to organize data. Lists (`list`) and dictionaries (`dict`) are two examples.\n",
+    "* You can index a list using square brackets, for instance `some_list[0]` to get the first item from `some_list`.\n",
+    "\n",
     "**Functions** perform actions on \"things\".\n",
     "* `print()` `len()`, and `type()` are some of the most commonly used functions.\n",
     "* You can identify a function by its trailing round parentheses.  \n",
     "\n",
     "**Arguments** are the \"things\" we perform the action on within a function.\n",
     "* Arguments go inside the trailing parentheses of functions when we call them. \n",
     "* For instance, in `print('D-Lab')`, the string `D-Lab` is an argument.\n",
-    "* Arguments are also called inputs or parameters.\n",
+    "* Arguments are also called inputs or **parameters**.\n",
     "\n",
     "**Methods** are type-specific functions.\n",
     "* Different data types and structures have functions that only apply to them.\n",