„In recent years, kindergarten has become increasingly academic, such that teachers have reported large increases in literacy and math instruction, time spent on challenging academic topics, and the use of standardized tests from 1998 to 2010.“
Dr. Jenna E. Finch, Do Schools Promote Executive Functions? Differential Working Memory Growth Across School-Year and Summer Months. In: AERA Open, April-June 2019, Vol. 5, No. 2, S. 2.