Update: After two weeks of school, I am much less concerned about this.

DD is feeling competent, rather than bored, in math. There's a lot of variety in the math they're doing, so a worksheet might have 3-5 problems in each of 4 topics, rather than 20 problems on one topic. DD also likes the fun methods her teacher uses to make sure everyone understands the concepts. (Today, they watched what I think from DD's description was this video on place value:
)

The science lessons this week were on plant stems, demonstrated with a "celery stalks in food dye" hands-on project.