It allows the teachers to utilize online services built for education, which allow other "features" that online grading does not do. - It provides feedback on

It allows the teachers to utilize online services built for education, which allow other "features" that online grading does not do. - It provides feedback on how long students are doing each section, so they can identify if students are spending too much time on homework. - It makes it interactive, which for primary school children helps keep education fun. They can even receive awards (gold medals, virtual stickers in their collection, etc) to keep them motivated. But yes, pencil and paper are used for these as you can see the problem and write the answer, but do the work on your own, as needed.