As a teacher your time is very precious as you often do not get a lot of it. You can spend much of your evenings and weekends planning lessons and marking work. It is a good idea to try and reuse as much of your planning as possible to cut down on the time it takes in the future. The first way to do this is to have a template that you can use for planning. You may be given this by the school or through a teaching agency (if you use one). If not then a simple Word document can help you plan the lesson using the same structure.
Although things do change in terms of topics to be taught and the way you should teach them, some will remain the same and therefore it makes sense to base your new lessons on a similar plan. This is especially true if you have found a great way to teach a particular subject or topic. Another way your lesson plans can come in use is to share them with other teachers that work in your school or through teaching forums. Sharing ideas and letting others know what worked and what didn’t work can be a great way to make the most of your experiences