Our daughter is in 4th grade as well, she struggles when she has to do her homework at home. So whenever possible we try to leave her at the school long enough to do her homework there as part of the afternoon care. Depending on your school / country this might not be a thing…
When she does them at home, it’s best to start as early as possible. The closer to the end of the day the more exhausted you both are.
Change it up, use different techniques. Don’t have anything she can spill on the table. Play music over speakers. Allow her to listen to music over headphones. Make little games of the subtasks. If she has to write or come up with sentences or stories, it sometimes helps when we come up with super silly or even wrong answers. Have fidget toys ready. Have scrap paper ready that she can tear/smear/poke/cut/rip apart so it’s not her school book. Have something to drink and eat close by.
Most of the time though it just sucks for all of us. She knows it is so much easier to do them in afternoon care. She gets frustrated with herself. We get frustrated. We say stupid things like “if you just do it you’ll be done soon”. We’re looking to get her into a school that doesn’t do homework for secondary school.
I have ADHD and I hated homework. I hate it even more now that I have to force my daughter to do it.
The JWST actually sits at a Lagrange Point (L2)
There is a good write up including video and animations to explain what where and why https://webb.nasa.gov/content/about/orbit.html