The School Motivation and Learning Strategies Inventory (SMALSI) is a diagnostic tool that helps educators identify and measure strategies that are actively used by students for learning. It is a self-report inventory for use with students 8 through 12 years of age (SMALSI-Child Form) and also with older students aged 13 to 18 years (SMALSI-Teen Form). This article presents a general description of SMALSI and its technical adequacy. It is recommended to school psychologists as part of their standard battery of measurements for students who are referred for learning problems. It can also be used as pretest and posttest measures for intervention effectiveness. (Contains 1 table.)