During the 2020-2021 school year, some students managed to stay on track academically throughout remote and hybrid learning, while many others experienced the COVID slide we had feared. Unfortunately, this variation in student knowledge is nothing new. COVID-19 has just exacerbated it. When your students’ learning gaps vary so widely, with so much learning loss to address, the stakes are high to properly diagnose each student’s needs. The question isn’t whether to assess, but how.