Final answer:
The time period for completing the 3.4/3.6 items depends on the Schedule of Work provided for the course, which will outline specific availability and due dates.
Step-by-step explanation:
The time period over which the 3.4/3.6 items have to be completed can be interpreted by evaluating the work schedule and the specific instructions provided in the assignment's guidelines. Referring to the instruction to 'See the Schedule of Work for date of availability and due date', the completion time for these tasks is contingent upon this schedule. Furthermore, given the hint which suggests thinking about the number of years covered by each time period and the reference to historical changes in higher education, it is likely related to an analysis or a study spanning a large timeframe. This is supported by the context provided by the other numbers; it appears these represent section or question numbers pertinent to a task that might involve comparative historical analysis, as indicated by the hint to consider events in higher education over a range of years.
In addition, the mention of various time periods such as 'more than 60 years' and 'less than 10 years' indicates that a broad span of time could be relevant to the question. To answer this question precisely, one would need to access the Schedule of Work referenced, which would explicitly state the availability and due dates of the 3.4/3.6 items in question.