To connect the switches simply score the wire with your wire stripper and push the insulation to expose about 34 in. You connect the black wire from the power source to one of these brass terminals the line terminal and the black wire going to the light fixture to the other which is the load terminal.
Light Switch Wikipedia
Wiring single pole switch multiple lights. A switch interrupts the hot leg of the circuit so it has terminals only for black wires and ground. This would be a two wire cable black white ground take the black wire and connect it to one screw on the switch and connect the ground wire to a screw inside the electrical switch box mounted to the wall. Connect the last switch in the usual manner looping the wire around the screw in a clockwise direction. Basically the simplest way to have multiple lights on one switch is to run a power supply wire to the switch first. To wire this circuit in this manner you will need to run a 143 between the two light boxes. Electrical basics wiring a basic single pole light switch basic wiring for a single pole light switch and light.
Wiring a single light switch in the middle of a circuit. In this first example ill be wiring a one gang junction. Wiring a single pole light switch here a single pole switch controls the power to a light fixture. Before i show you how i wired my specific light switches i want. The terminals are brass. The source is at the switch and 2 wire cable runs from there to the light.
This will allow you to connect the first light as you described above and to run this additional light from the same switch by utilizing the red conductor in the 3 wire as the switched conductor and the black wire as the continuous hot wire. The source hot wire is connected to a switch terminal and the other terminal is connected to the black cable wire.