It's very easy- all you have to do is follow these steps:
1. First, click on the link
http://puzzlemaker.discoveryeducation.com/cryptogramSetupForm.asp
2. Then, choose a title for your message
3. Next, enter the message you want to encrypt. Remember, use AT LEAST 40 words
4. Then, decide what characters you want to use. You can choose numbers, English letters or Greek letters!
5.Finally, create your puzzle for the class to decode!