The work book should be separated from main text book to allow other children from same family to use the text book , when I was in primary school the only text book my parents bought for me was just maths and English and my sisters also used the same , this is what the minister is trying to do , if we enjoy that during our own time why should we now make it a burden to others now.  So the work book should be separated from main text , it should not  be compulsory too.