Writing your teaching objectives each day, especially if you have multiple preps, takes away from other important tasks that you could be doing. I share a quick teaching strategy that I use to save time and energy.
If you don't have access to a poster maker, you can always write your teaching objectives on chart paper during a free period (e.g. winter or summer break). Laminate and save for future use! This teaching strategy has saved me so much time and has allowed me to focus on preparing for other daily activities.