"Nowadays a lot of parents decided to learn their children in their houses" - ....decide to teach....at home.
"In the past only wealthy families could afford for that luxuries" - bez 'for' i that luxury (l.p)
"What are the advantages and disadvantages of taking such a step ?" a po co 'a'
"First of all, children whose are..." - 'who'
nast. zdanie niezrozumiałe
"answer on teacher's question" - answer to ... question,
"if children have as much time as their want they can have a problem at work because they work to slow" - "as they want", "can have problems at work", "they will be working too slow",
"children who are educate in home" - ecucated at home
"with work as a group" - with teamwork
"idea of homeschooling depends on a child's character" tu sens jest zły, wybór tej metody zależy od charakteru dziecka nie idea,
"If they are clearly determined and do not have problems with team work, they can be teaching at home" - znowu problem z sensem, czy te co uczą się w domu mają być bardziej zdeterminowane? i nie "teaching" tylko forma bierna,
"It is a very hard decision for parents too" dlaczego "too" ?