Let's review ordinal numbers using logic and deduction. Ask the students to imagine that they will have to buy an apartment in this building. But before making a deal, they should study all the details: neighbours (if suddenly they arrange noisy parties), the presence of a balcony and windows so that a flat is light, the floor number (in case the elevator breaks down) and other things. After the students complete the task, ask them to discuss in pairs the apartment on which floor they would choo