To facilitate these TRANSITIONS, Walch Education has developed this collection of problem-solving tasks that target the new content and embody the new practices. These 15 tasks will help you to infuse existing curriculum with both the content and the practices of the Common Core and support problem-based teaching and learning. Each task takes only 2030 minutes for students to complete with another 1020 minute debrief to enhance reasoning and communication, and to crystallize understanding. For the teacher: a) background information and implementation suggestions; b) links to relevant resources, content, and research; and c) a series of suggested questions to encourage problem solving, reflection, and discourse, guiding rather than leading students. For the students: a) a meaningful context that may transcend traditional school subjects; and b) opportunity to collaborate and to grapple with real problem solving.