The TMC Text area is curricular materials arranged by discipline and then by grade range:
Materials overlap due to publishers' curricular models, so you might have to look in more than one area to find what you need.
Example Subject Heading: Science Study and teaching (Middle school)
The TMC Pro area is full of teaching and activity books arranged by discipline.
Sampling of Keywords that can be used generally or in combination with a discipline (Science, Math, Language Arts, Etc)