The 7 mathematical practices are important for students to understand as they engage in rigorous mathematical tasks and learn to understand how the language mathematics.
These classroom pennants will help remind students to think about the processes they are using as they develop new skills.
If you love these then you should check out my Science and Engineering Pennants and related products as well!
Engineering Design Process Posters
Common Core Mathematical Practices Poster Set
Mathematical Practices Pennant Set for Common Core Standards
Science and Engineering Practices Pennant Set for Common Core Standards