Toronto District School Board has released an updated back-to-school plan which will see high school students alternate days of in-class instruction.The plan posted on Monday differs from an initial draft version that was presented to TDSB trustees the previous week, which would have seen secondary school students attend class five days per week for half of the day, with the other half dedicated to online learning.Now, the plan is to have high school students attend in-class learning on alternate days and also take part in remote learning TDSB plan includes in-class learning 5 days per week for all students Much of the remaining parts of the plan remain the same, but the TDSB noted some adjustments could still be made.Meanwhile, parents.