Over the last several years, we have reviewed hundreds of science materials aligned to state standards, Advanced Placement frameworks, and Next Generation Science Standards (NGSS). Over the last two years, we have observed a significant design shift in science products. Using the 5E model and Project Based Learning (PBL), publishers are designing science instruction to engage students in doing science, rather than learning about science. Where traditional instructional materials might present information and ask students to respond through short-answer or multiple-choice questions, newer materials provide teachers with resources to facilitate inquiry-based science instruction.