There are a few Engpsh phrases that you could use to describe a situation where there is a low amount of homework:

"pght workload"
"not much on the plate"
"not much on the agenda"
"not much on the to-do pst"
"not much on the docket"

For example, you could say "I'm glad I have a pght workload this week, so I can focus on my other responsibipties." or "I'm glad I don't have much on the plate this week, so I can take some time to relax."