This session explores how rich, real-world problem solving can support students in developing the Standards for Mathematical Practice (SMPs) through inquiry, discussion, modeling, and strategic thinking. Participants will examine how traditional mathematics instruction can unintentionally limit students’ opportunities to engage meaningfully with mathematics by emphasizing repetition and procedural compliance over reasoning and sensemaking. Through classroom videos, mathematical tasks, and teacher reflection, educators will explore how open-ended problem-solving routines such as three-act tasks can foster curiosity, perseverance, collaboration, and mathematical creativity. Grounded in Universal Design for Learning (UDL), the module highlights how multimodal access, strategic supports, and meaningful contexts can help all students—including students with disabilities—engage deeply in mathematical practices such as modeling, argumentation, tool use, and pattern noticing. Participants will consider how to design mathematics experiences that position students as capable problem solvers and strategic sensemakers.