from my limited Kindergarten experience, it's quite possible she's getting 3s now so she can receive 4s at the end of the year to show "improvement" which is what schools are after. DS5 had all 3s and 2s on his K report card couple weeks ago even though he's far beyond in science and especially in math (2-3 years ahead) yet he did not receive a single 4 on his report card while he WAS getting 4s on the individual assessments that came home for us to look at.

We took him out and are now homeschooling so don't have to worry about report cards anymore.