Consider meeting with the principal and asking how the classes are assigned. For my oldest DS, the school had segregated the classes into very high with some high, high with some average, average with some low average, and low average and very low. That system was somewhat changed by the time my two younger children entered K, but I asked the principal to pick the K teacher for DS/DD who would be the best fit for DS. Interestingly, the number of GT identified kids from DS/DD's K class is more than double that from the other five K classes. Is it possible that your DD was placed into a class with a high percentage of average or lower kids? It just sounds odd that they are all reading at K level.
