It would rage me when my children would get home with tons of various projects but yet struggling to learn their spelling or reading comprehension.
Last year my son had a teacher that I could have strangled with her meaningless projects... for home, but still, it took away from study time. In one 2 week time he had 6 projects due. Between Essay and Solar System, Drug posters, Fire prevention... etc etc..
It takes time to complete these, I divide myself between two kids every night reviewing homework and studying with them... then add to that both have a drug and fire prevention project to do and then others for my son. I put my time in at home, I know that its also my responisibility to make sure that my kid studys, reads, does homework. I just think that the school is flooded with things that take away from core subjects.
Fire prevention 6 years in a row.. fine do a small lesson. It shouldn't be mandatory to do an entire week of it and home assignments, posters etc (just using this as an example there are other things that were just a waste)