talk a bout your school rules / rulers in the park 
A )rules in the park
you musn't pick the flowers
you mustn't walk on the path 
you mustn't play in the fountain
you must put litter in the garbage can 
you must walk on the park 
B)
you must do your homework 
you must hrlp your teacher 
you mustn't play soccer in the classroom.
you musn't  shout in the classroom 
you must put litter in the garbage can 
you mustn't ride your bike in the school yard
you mustn't  play soccer in the classroom
 you must raise your hand to ask 
you mustn't be late  to school 
you mustn't  talk in class