These tasks generally take 30 to 45 minutes and can be used to replace class work or guided
practice during selected class periods. Depending on the background knowledge and structure of
your class, however, the tasks could take less or more time. To aid with your planning, tasks are
divided into two parts. This flexible structure allows you to differentiate according to your students’ needs—some classes or advanced students may need only one class period for both parts, while others may need to defer Part 2 for another day or altogether. Use your own judgment regarding the amount of time your students will need to complete Parts 1 and 2. Another strategy for compressing the time necessary to complete a task is to divide the problems or calculation associated with a task among students or small groups of students. Then students can “pool” their information and proceed with solving the task.