Step one for any lesson plan would be an outline of the objectives of the lesson, the why of the lesson and its intended outcomes. Your objective would be stated as, for example, by the end of the five lessons, the student will understand the difference in usage between a statement, exclamation, command and a question. In addition, the student will make use of the correct punctuation marks to indicate the different sentence types.
Step two of drawing up a lesson plan would be for the teacher to decide what resources will be needed for the lesson. The home school teacher might make use of a simple storybook to start. Thereafter, a series of worksheets for discussion might follow. Finally, the lesson might conclude with an assessment task, to ascertain how well the student has understood the work covered.
Lesson plans are an effective tool in the hands of a teacher. If for some reason, a day is disrupted, you can simply refine or combine two lesson plans to cover the following day. A lesson plan must not restrict the flow of learning and teaching. If you have planned to cover a certain amount of work and fail to do so, there will always be an opportunity to move onto the concept in a follow-up lesson. Home school teachers who have difficulty being flexible, would be well advised to plan their work in lesson units and not individual lesson units.