Actually, there are detailed chapters on Muslim scientists and their achievements in British and American books I use for my middle-grader. In fact, just couple of years ago, the British Museum held an exhibition on Islamic contributions to Science.
We are so ignorant of our own history (and ignorant of history in general) that I think everyone including you and I, politicians and molvis should keep away from anything to do with forming and influencing the education policy. Only intellectuals and philosophers should have the right to create and manage curriculums.