 Now for a quick introduction to the worksheet practice problems you would have done. So there's a PDF file which is going to have the two practice circuits. You probably can't see enough details here and me quickly going through, but go ahead and open that PDF so you can see the worksheets. My suggestion is that you try and go through and follow the technique shown in the other examples and figure out the equivalent resistance. But if you get stuck or at the end when you want to check yourself, go on over to the solution key. Now the solution key is two pages. One page does the first circuit. The second page does the other circuit. And it goes through and identifies various series and parallel sections and shows the calculation for the equivalent resistance. And then it shows the slightly simplified circuit continuing through as we go through. So go ahead and take a look at that practice problems and also the key to them and see if you can figure out how to do this on your own.