My daughter is in kindergarten too. The only thing saving us right now is that my daughter loves art and they do a lot of art projects.
At our conference in late Nov I expressed my concerns as there was no differentiating happening at all. After that they started a reading group where they brought together the 4 readers within the 2 paired kindergarten classes. If I can believe my daughter (and I think I can) they have met about 2-3 times and all they did was read an extremely easy book together out loud at the same time. Fun (not !). My daughter can read at around the 4-5th grade level. She is also pretty good at math but all they do there is count. It is ridiculous. I am constantly told that kindergarten is not supposed to be academic but they other kids ARE learning things, just not my daughter. She was struggling to make friends though so we decided to be low key for now. Maybe I will ask about Accelerated reader.
Anyway, I have no advice for you, just sympathize. Actually I feel you have made more progress than I have.