The purpose of this study was to investigate the impact of music practice instruction on middle school band students' ability to articulate and incorporate practice strategies. Participants were middle school band students at a large suburban middle school (N = 105). Using a pretest-posttest quasi-experimental design, participants were divided into control (n = 53) and experimental (n = 52) groups. Participants in the experimental group received 3 weeks of practice strategy instruction during ensemble warm-up time, and the control group continued with their typical warm-up routine. Pretest and posttest data included self-reported practice strategy lists (N = 105) and video of individual practice sessions (n = 20). Both self-reported and video data were coded and analyzed using descriptive statistics as well as pretest--posttest within-groups comparisons. Thirteen hours of video data were further analyzed using an observational measure of self-regulation. Analyses revealed that experimental group participants identified and utilized significantly more practice strategies following the instructional intervention. Posttest experimental group practice sessions also revealed a more mature approach to practicing, including more strategic behaviors, greater variety in musical objectives, and longer periods spent focused on short excerpts of music. Implications for future research and middle school instrumental classroom practice are discussed.