I've been teaching kindergarten in China for 4 years and have had lots of different class sizes and ability. Now I have a class of 11 kids aged 4 and 5. 10 girls and 1 boy. I've been teaching them for about a month. The boy is no problem but whatever I do the girls continually chat through English class. I've done the good teacher/ bad teacher skit, rewarding quiet behaviour and moving them. But nothing seems to work. Any suggestions?