A fun way for your students to learn the differences between rational and irrational numbers. 24 different examples are cut and pasted onto construction paper to create a poster. Students will also write the definitions of "rational numbers" and " irrational numbers" and will give a written justification on two of the examples. Great for a group activity, or a fun way of giving a quiz! Can easily be modified for an IMN by shrinking the examples and having students glue or tape them into their interactive notebook. Enjoy!