Wow this Yoda hat is really cool. It is a great costume idea to make for your little one for a Star Wars Themed Party. It is quite an easy project using this step by step tuorial and is perfect for beginners. Follow the link for the tutorial; http://www.itsoverflowing.com/2011/10/costume-tips-tutorial/
If you would like to learn or brush up on other basic sewing techniques before you start this project go here; Sewing Techniques & Stitches to find the skill you would like to work on.
If you would like to see more easy/ beginner sewing projects go here; Easy/Beginner Projects
If you would like to see challenging/Experienced projects sewing go here; Challenging/Experienced Projects