This is a Bread-board / Proto-board.
It allows you to prototype (make up) a circuit before creating a permanent version.
Notice the burn marks the board above. Someone made a circuit that got too hot! What did we learn?
- It shows the importance of prototyping a circuit before you start soldering. This could have been disastrous in a finished project.
- It show the necessity of using components that are rated for the voltage and current you will be using in your circuit.
Use your multimeter to test the breadboard.
Put it on the continuity setting and check the lines on the breadboard to see which lines are connected.
When you find a line of holes that are all connected, Trace the lines in the picture above using a paint program such as GIMP.