This one-page document highlights key findings from the report, "Teacher Preparation Experiences and Early Teaching Effectiveness. NCEE 2019-4007" (ED598664). To better understand teacher preparation and inform ways to improve it, the report surveyed about 3,300 new elementary school teachers about their preparation experiences. The survey asked about their experiences learning specific teaching strategies across two categories of classroom instruction: "Creating a productive learning environment" and "Promoting analytic thinking skills." For each strategy, teachers reported how often within their preparation they engaged in four different ways of learning them: "coursework," "observation" of other teachers, "practice" within a classroom setting, and instructor "feedback" on their classroom practice. The study describes the frequency of these experiences and which experiences may matter for teachers' effectiveness in improving student test scores.