Planning Diagnostics are intended to help you create a long-term plan for your class. They are adaptive assessments that gather broad-strokes data about your students' strengths and weaknesses. At the end of a Planning Diagnostic, students will be grouped into performance bands, but not given a percentage grade.
Use case: We recommend giving a four- to six-category Planning Diagnostic at the start of each school year, semester, or quarter. The question you're trying to answer is, "Where should I begin?"
Unit Diagnostics are targeted pre-assessments intended to give you a sense of what your kids know at the start of a unit. They are structured like a quiz, such that you can select specific skills to assess and students will receive a percentage grade upon completion. At the end of a unit, you'll create a Growth Quiz to compare to your Unit Diagnostic, and our engine will show you how students grew.
Use case: We recommend giving a Unit Diagnostic at the start of each unit of study. You'll then be able to track student growth by giving an analogous Growth Quiz at the end of the unit.
This graphic may help you get a sense of how we'd recommend using the assessments on the site: