Meteorology: An Educator's Resource for Inquiry-Based Learning for Grades 5-9 is written as a supplement to existing Earth and space science curricula for grades 5-9. The guide may be used in both formal and informal educational settings as well as at home. It should be used in conjunction with lectures, discussions, textbooks and other teaching material. This guide is not intended to be a complete course in meteorology; rather, its function is to assist educators in instilling excitement in learning about meteorology by permitting the learner to take increasing responsibility for his/her learning. The learner should experience "how we arrive at what we know," rather than memorizing what we know. This publication was developed to enhance the understanding of inquiry-based learning from the educator/teacher’s perspective as well as from the learner’s perspective. Inquiry-based learning has many levels. In general, inexperienced learners and younger learners will require more guidance than more-experienced and older learners who are better equipped to take responsibility for their learning. There are four levels of inquiry defined in this publication, confirmation-verification, structured inquiry, guided inquiry and open inquiry. The levels will be further defined and explained in the introductory chapter.