Rachelle Oblack, based in Hunker, Pennsylvania, United States, is currently a Textbook Writer - Science at Houghton Mifflin Harcourt, bringing experience from previous roles at about.com. Rachelle Oblack holds a 2001 - 2004 Master of Arts. With a robust skill set that includes Mathematics Education, University Teaching, STEM, Learning Management, Public Speaking and more, Rachelle Oblack contributes valuable insights to the industry. Rachelle Oblack has 2 emails on RocketReach.