How to make series &parllel testing board।

Elrctrical series &parllel testing board। How to connect series &parllel testing board।
What is the use of series board?
The Series/Parallel Bulb Board demonstrates the effects of a variety of series, parallel and series-parallel circuit hook-ups through the glow of light bulbs acting as resistors. The board's convenient strap-connectors allow the combination of two to five lights in series-parallel mixes.
Why use series parallel circuit?
Series circuit connection gives us the opportunity to connect more than two loads to a common switch. Street light is a very good example of this. Parallel circuit connection makes it possible for us to connect loads to their individual switches.