Several times throughout the year, my students take interim assessments. These assessments cover material from each unit to date. This is the first assessment of the year, which covers geometric constructions, geometric transformations, and rigid motions.
The assessment contains 45 questions, 30 multiple choice, 8 short answer questions worth 2 points each, 4 questions worth 3 points each, and 3 questions worth 4 points each, for a total of 100 points. It should take the students approximately 90 minutes. Students need a compass and straight edge for the constructions.
Interim assessments help teachers gather information about what their students know and can be used to inform teaching. If I notice many students difficulty with specific topics even after the assessment, I build in extra practice into future lessons.
In my school, we have time set aside for Interim Assessments; however, this assessment can be split into two lessons. I usually average the students' grades on the assessment into their semester grade, but it can also be used strictly as a formative assessment to show student progress.