A one pager is the ULTIMATE higher order thinking tool. I use this tool in many different ways. It is great as a summative assessment of student work, a review before a test or extra credit. The best thing about One-Pagers is that it requires students to synthesize and evaluate their knowledge of a topic. This has been modified from an AVID strategy and is now PERFECT for middle school, or can be paired down for elementary.
No two one pagers are alike just as two students will never process information in exactly the same way. The set of criteria ensures that all students are questioning, citing, analyzing, and evaluating; BUT each student chooses what elements were most relevant for them.
This also allows students to reach higher levels of thinking. Instead of a worksheet, or a webquest, where the teacher identifies what the most import parts of the topic are, the students must evaluate for themselves what is critical information and what should be left out. I am ALWAYS surprised by the depth of thinking and connections my students consistently show. I hope you and your students enjoy this activity as much as mine do.