How can a math department chair's concern about lack of collaborative planning time be best addressed?

Adjusting the master schedule to create dedicated collaborative planning time can be the most effective way to address the concerns of a math department chair regarding the lack of planning time. This approach directly targets the root issue by allocating specific periods within the school day for teachers to collaborate, plan, and share best practices. Such adjustments not only ensure that all teachers have the opportunity to work together but also foster a culture of collaboration that can enhance teaching and learning.

Other options may provide some level of support but do not offer a sustainable or comprehensive solution. Offering extra pay for after-school planning sessions could encourage some collaborative efforts, but it may not be feasible for all teachers due to personal commitments or may lead to burnout if it adds to an already heavy workload. Purchasing technology for asynchronous communication can facilitate collaboration but does not replace the need for face-to-face interaction and can lead to ineffective communication if not used properly. Finally, placing substitute teachers in classrooms monthly might alleviate some logistical concerns but does not address the collaborative planning needs of the math department, and may disrupt student learning continuity. Thus, adjusting the master schedule is targeted, practical, and directly benefits the teachers' ability to work together effectively.