This website is focused on finding materials that meet the 3-dimensional learning criteria of NGSS. That means that sometimes we find amazing resources that aren't fully aligned, or that don't utilize many of the Science and Engineering Practices. Those resources won't get a 5-star rating, even though they are fantastic. That's just how our rubric works. (Truthfully, we'd like to give all the coloring and arts and crafts pages full marks for being fun.) It's also entirely possible we just made a mistake; we have a very small team. We encourage you to submit your own ratings of materials, or to contact us and let us know about the issue. Please make sure to include the URL of the resource that you have concerns about.