Give each student a copy of this making predictions worksheet and elicit a few ideas about one of the topics. Write down a couple of examples on the board explaining that will and also going to are usually used to make predictions about the future. Put students in pairs and allow ten to fifteen minutes for them to discuss the topics and write down a few ideas in each box. Stress that full sentences are not necessary.
Go through the topics one at a time, listening to each student’s ideas, putting nice examples on the board, correcting grammar and feeding in vocabulary when necessary.