The phrase "common planning" refers to making plans together with others. It means working collaboratively and sharing ideas to create a plan that everyone agrees on and can work towards. Full definition
I created blocks of common planning time for teachers and teaching artists to collaborate and create interdisciplinary, arts - integrated activities, lessons and projects. (edutopia.org)
Brief description of research that identified the positive effects of common planning time on students and teachers. (mlersig.net)
The most common plan used for rehabilitation loans, and the one required for consolidation loans, is income - based repayment. (debt.org)