Different schools and year groups send out differing amounts of homework. There is no law to state how much or how little homework a pupil should receive so it is very much up to the individual school and often teachers to decide.
Some schools have decided that reading is more important at the early stages than home work so have decided to stop giving out home work but to ask the pupils to read to their parents or family members each night.
IF your child is set home work then make sure that they allow themselves enough time to complete it without having to rush. Go through their home work with them and make sure that they know what they need to do. Having a designated home work area and also a time to do it is often a great way to get the child in to the correct mode for learning.
If the task requires some adult help then you need to make sure that you do not take over and instead you allow the child to do what they want to with your help rather than the other way round.