There seem to be too much repeated in this episode. This EP can actually be shortened by:
Explain the buffer operation in EP7. Do not do buffer cropping
Remove the waterway cropping exercise
Explain the rio.clip function and demonstrate clipping with all polygons. Add an exercise to let students choose a subset of the polygons (e.g. choose a certain type of crop), and crop the same raster using the subsetted polygons
Visualizing the thumbnail with polygons seems to be redundant. One can directly jump to copping large raster with the bounding box and visualize polygons on the cropped raster.
The variable names are too long, and need to be improved. Use the term "crop" only for data cropping, but not for field plants.
Issues: