SPEAKING: Try to guess the invention

You are going to work in groups of 3: student A, student B, student C.

Each of you will be given three words referring to 3 inventions. You need to make a definition using which or where for each invention so your partners can guess which object you are referring to.

For example:

Click the links below and download the instructions for each participant.

Who wins? The student who guesses the highest number of inventions!