اثر معرفة الطلاب المسبقة بالاهداف السلوكية و تحصيلهم الدراسي في مادة العلوم

The importance of the current research comes from the specification of the aims which share in improving the teaching and learning process then the society . So the specification of the aims clearly and defiantly make the teaching process a clear one, then makes the teacher thinks deeply on what does he from his pupils to learn, after he teaches them a subject or doing experiment that they can't be able to do it before he teaches them. So the importance of using the behaviour aims comes as a result of the reation of the pupile aims that aften comes with imbiguity which makes the teacher has no clear idea in how to know it.