Mine are pretty simple now. I've been teaching the same grade level for a few years. Mine are on my computer at school, but it basically looks something like this:
Objective: The student will...(multiply mixed numbers, for example).
TEKS: (This is where I list the Texas Essential Knowledge and Skills requirement that this lesson addresses.)
DO NOW: (This is the starter activity I have on the board that the students come in and get to work on until I'm ready to get going).
Lesson: (Here I step-by-step lay out the lesson, so that even an administrator could understand it.)
Assessment: (This is where I list how I will assess students' understanding of the lesson. Usually a test).
I'm forgetting something, but that is the basic layout. Somedays I have more than one objective. The hardest part was planning my year to make sure we had covered everything by the time our state assessment test is given. I usually spend about a week or so before the test specifically addressing the test. That is my strong point as a teacher honestly, which would serve me better in a regular public school where passing the test is the most important thing. Because the book I use is more advanced than what the state requires, it doesn't exactly cover all of the TEKS so I'm responsible for making sure I cover them all one-way or another.