Are you teaching problem solving to your students using bar models? This tool is for you! Use the first 27 slides of the Powerpoint show to teach the steps for problem solving with multi-digit numbers for addition and subtraction. The last 10 slides are instructional pieces that will help you provide differentiated problems for your groups. Just add a problem card and exit checklist to chart paper and your groups will be ready to work together to solve problems and share their thinking with the class. Help your young mathematicians engage with problem solving using bar models!