Final answer:
Janet and Jacinda teach a second-grade class on different days of the week, which is an example of job sharing in a school.
Step-by-step explanation:
The situation described in the question is an example of job sharing in a school setting. Job sharing occurs when two or more individuals share the responsibilities of a single job or role.
In this case, Janet and Jacinda are sharing the teaching responsibilities for the second-grade class at Randolph Elementary School. Janet teaches on Mondays, Wednesdays, and Fridays, while Jacinda teaches on Tuesdays and Thursdays.
This arrangement allows the teachers to split the workload and provide consistent instruction to the students throughout the school week.