IEPs are an important part of our profession when working in education. Here are a couple of resources that may help you with the process.
1. Aligning IEPs to the Common Core State Standards
This is a really beneficial resource from Linguisystems that helps with goal writing, along with other helpful suggestions and guides.
ASHA is of course a great resource for help with IEPs. Here is the link to their IEP Guidance page.