It's super easy to get from Schiphol to Amsterdam Central. Once you exit baggage claim, you will be in the arrivals hall. This is where all of the trains and busses leave from. In the middle of the hall are kiosks that you can buy your train ticket from. The ticket kiosks and the schedule boards are blue and yellow and easy to spot. Select English on the ticket kiosks and it will walk you through the process. When I did it in May, I believe a ticket from Schiphol to Amsterdam Central cost either 5 Euros or 5 Euros and 50 cents. You will need Euro coins or a credit card with a chip to pay. Once you have your ticket, check the schedule for trains going to Amsterdam Central. If there isn't one headed directly there, most trains will make a stop there just check the schedule to see which platform the next train is leaving from. The platform numbers are marked on the walls above the escalators that go down to that platform. Also on the platforms are monitors that list the first few stops of the next train coming in so you can double check there that it will stop at Amsterdam Central. Check your hotel website for directions from Amsterdam Central to the hotel. Good luck, watch out for the bikes and have fun! Amsterdam is a great city!