Identifying writing/forming algebraic expressions: Harry Potter themed Algebra Lessons

This Harry Potter themed lesson will be 1 of 8 in an algebra series of lessons. This lesson will see substitute teacher, Severus Snape, take over the maths lesson on Identifying and Writing/Forming Algebraic expressions.
The starter will see students forming a magical shopping list. Next Snape will go through the definitions of a term expression and equation giving lots of examples.
The first exercise will be a cut and stick activity. Each of the potion bottles will be labeled with a term, expression or an equation. The activity will ask the students to sort the potions into the correct cauldrons.
Next snape will go through an example of how we would form an expression from given information. After the example, two more exam style questions will be shown as a whiteboard activity. The answers will be explained and demonstrated.
The last activity will be an O.W.L examination for students to work through.
More in this lesson series to come.