RATATAZ is an innovative learning method created by Dr. Rebecca Woodbury and produced by Gravitas Publications Inc. Gravitas Publications Inc. was incorporated in 2003 and has provided textbooks, workbooks, teacher guides, assessments, and study guides for homeschool, charter and alternative schools for 20 years. We recently moved our operation to Phoenix, AZ, to provide afterschool academically focused STEM programs for schools. We are committed to delivering high-quality educators and educational materials that cater to the diverse needs of all learners.