Students are asked about the things they see in the different scenes. They revise vocabulary

I have over 1000 students who I teach and wanted to give them candy. So in the last 5 minutes of class they were able to pull from a hat a card. If they pulled the trick card, no candy, if they pulled the treat card, the could choose a candy. Each class has about 40 students so i printed 34 tricks and 6 treats.
Very simple, but students were excited when they learned they were going to be treated at the end of the class.

Here are some details of the grammar in the polish language. it can be used to present your ideas and in the middle of the presentation, there is a little part where you can stop and give the students time to try an exercise themselves. Hope it helps! :)