In a similar way, a teacher, in creating a lesson plan, prescribes a series of activities that will help students attain a particular objective. To create this plan, the teacher needs information. That information is derived from the assessment and the subsequent analysis of the information that results in the diagnosis. In the plan, the teacher takes into account the relevant developmental and learning characteristics of the students, the specific subject-matter content, the available resources, including time, space and materials, and the instructional methods such as direct teaching, discussion, cooperative learning, etc., that will work best in the defined situation. As a minimum, the lesson plan should include the objective, a list of any required resources and materials, the instructional activities, and a description of how the learning of the objective will be measured.
Reticulation means to network.
It means, for example, that a teacher should, as part of the planning process, determine what, where, and how resources needed to implement the lesson will be obtained. It is having information about how the education system works. If a plan is totally linear, but requires other people who are not under the control of the teacher to do certain things at a particular time, it is quite obvious that the lesson can fail if someone doesn't perform as expected. The same idea applies to materials needed for the lesson, but which the teacher must obtain from other sources. If a video, software, hardware, or print materials are needed, but don't arrive on time, the teacher must have an alternative planned that will still lead students to the objective of the lesson.