I love SORTS. It allows the teacher to quickly assess and re-teach. Students love manipulating the pieces. Partners love to discuss and organize.
I have put together the most crucial concepts for fifth grade into SORTS. YOu will need to copy a copy or two (hopefully in color), cut, and place in envelops. I included TOPIC TITLES for the envelopes so you could use these year after year.
Reflection / Refraction
Sun / Moon / Earth
Rotation / Revolution
Types of Energy