CanFigureIt® Geometry - A unique way to teach and learn geometric proofs. Proofs simplified.

https://www.canfigureit.com/

BiteScis - free high school science lesson plans

"BiteScis sparks interest in scientific research by connecting what students learn in the classroom to the questions scientists are currently pursuing, whether in the lab or the field; through a microscope, telescope, or the circuits of a supercomputer. And since they’re classroom-tested, free, editable, and tied to standards, they are easy to incorporate into your classroom."

https://bitescis.org/