A set of 5 open-ended problems (one for each day of the week) applying geometry and number patterns, specifically as related to perimeter. Modeled after those types of open-ended questions that appear on state standardized graduation tests. Comes with answer keys. Several different solution methods are offered and the last two come with just answers and no detailed solution so the teacher can adapt to his/her preferences and the needs of the students. Can be used as a "do now" bell-ringer, anticipatory set, closure activity, extra-credit assignment or as a main lesson in and of itself. By Scott Cianci.