What are we talking about when we say we "Hear a spelling secret"? At school we use "The Secret Stories" phonics program to teach foundational phonics skills. Unfortunately I can't send home a complete list of all the stories, but I can give you this link to an article explaining the philosophy of the program.
This is an excellent article about asking open ended questions. Most of the learning in TK happens while the children are playing. We push their thinking to be more complex by asking open ended questions, and helping them to build on their ideas. This article does an excellent job presenting different kinds of questions to ask.
An article about strategies to use while talking to your child about the current situation.