Inquisitive is a supplementary resource in that it is light and easy to use. At the same time, it is a complete NGSS curriculum for Grades K-5. Inquisitive includes complete lessons, hands-on and virtual investigations, multimodal stimulus, formative and summative assessments, and Teacher Guides with activity-by-activity teaching notes and pacing suggestions.

There is no need to mix and match different resources. You can feel confident you are meeting all the Next Generation Science Standards with one affordable resource.