periods. Time also can greatly affect the possible learning spaces, and vice versa. The allocation of learning space is also closely tied to the organization of groups. Will students study in individual, small, or large group spaces? Or will the learning happen outside the classroom? The last step in this special group is the selection of resources. This is when appropriate instructional materials are located, obtained and adapted or supplemented to fit your needs. Notice that resources are selected rather than developed due to the time constraints on the classroom setting.
Once the group of simultaneous decisions is complete, evaluation of performance can be decided. How will students be measured on achievement and attitude toward content and instruction; and what was the overall effectiveness and efficiency of the lesson? And finally, the last step is the analysis of feedback. Now is the time to review all the previous steps. The arrow running along the bottom of the model from the last box on the right towards the first box on the left denotes this formative revision.