On this project we used the circuits scribe kit and a piece of paper. Next we use the circuit stencil and made a total of 6 circles in a triangle shape. Then after that connect the dots , place the steel sheet on bottom of paper, placed the SPST switch on one side of and the red blue Bi led on opposite side and then the 9V battery adapter on top. Turn on and if it turns red it is correct and and it is blue then it is not correct just flip around.