You can already count to twenty in English without thinking about it, so start there, and then picture a busy German bakery where the trays of fresh Brötchen (bread rolls) are going fast and the queue keeps climbing past ten. German does not build every teen the way English does, and at twenty-one the order even flips, so that the number is said as "one-and-twenty". Today you will hear why that flip starts earlier than you think, you will spot the pattern hiding in the teens, and you will count from eleven to twenty out loud.

Each card shows the English on the front, so you will hear the German first, and then the whole class repeats it twice before anyone tries it alone. Once you have said it, flip the card to check how it is spelled. After a few teens, listen out for the ones that end like zehn (tsayn), because those are built from a smaller number plus ten.

Use the bingo card on your desk (your teacher will hand out printables) or open Bingo on the class devices if you have them. Listen for each German number and mark it. When you complete a line, call Bingo and read your line aloud in German with the class. Stay sharp: the calls are the teens and twenty, not the small numbers you already know.

Picture the bakery counter with rolls still left on the tray, and then spin the wheel to see which number comes up. We all say that German number together, and then your teacher picks a volunteer or a table to count on toward zwanzig, saying up to three more numbers and stopping at twenty. A mini number line from eleven to twenty stays on the board to help you.