The material is not appropriate for a school. The message's content appears to be somewhat appropriate to a school situation and the grade for which it is designed. Meaning is sometimes hidden. The textual content is appropriate for the grade level and a school situation. Writing is crisp, clear, easy to read and succinct.
Meaning is unknown.
Relation is artificial and somewhat strained. They lend additional information or motivation without detracting from the message. Little is done to motivate the students. Although some students may find the scenario strained, it should motivate most students. The scenario you provide to motivate students is explicit and well written.