If you solve the task "turn on three lamps" for the first time, it will probably be a parallel connection.
Let's now also look at serial connection.
Electrical appliances can also be connected in a way that some of them are connected in series, some in parallel. Study the electrical diagram. Put one together and make sure it works.
Draw the electrical diagram of the circuit shown in the picture.
Look at the diagram. Find ten places where something is connected in parallel and in series.