if you are just a beginner, you may need to get some lessons first. There are lot of website provides online training programs. here is an example:
Bond Futures trading tips : Interest Rate Futures . This site provides everything you ever wanted to know about CBOT interest rate futures markets.Treasury bond futures contracts are an important part of learning how to trade futures and have their own interest rate fundamentals and are important to people who are interested in how interest rate hedging and government bond futures work.
good luck!