You might wonder why we have this marked for grades K-3. We firmly believe that little kids can handle big topics. We have designed these resources to be accessible to kindergarteners under the guidance of the teacher (leading the conversations, intentionally selecting the response activities, etc…) up to third (and oftentimes we have 4th and 5th grade teachers) because of the subject matter. Our K students are able to grasp a basic understanding while the older students can go deeper. Like any curriculum, you (as the professional) will need to make the call for how to best utilize this resource with your class. We thank you for your support!