أثر استراتيجية كرة الثلج في تنمية الدافعية والتحصيل لدى طالبات الصف الأول المتوسط مادة التاريخ
The current research aims at knowing the "following a snowball strategy in the collection of history for students first grade average and motivation to learn the art." To achieve this, the researcher adopted on an experimental design with a partial adjustment has chosen a random sample choice and numbered (62) student and abide by the experimental groups; one of (30) students studied in accordance with the snowball strategy officer and the other includes (32) students studied in the traditional manner. The researcher rewarded students between the two sets of search variables) months old, the previous school year degrees in history and the level of achievement of the parents). For research tools researcher prepared a test of the collection and the measure of motivation where it was drafting (30) paragraph objective risk trial of multiple choice, and the measure of motivation to learn about history, consisting of (35) items. It was sure to extract Psychometric characteristics and extract reliability coefficients. After the end of the experiment, it was tested two groups of research testing and grades measure of motivation. Upon analysis of the data shows superiority of students in the experimental group that studied the material in accordance with the strategy of a snowball in the collection and motivation. Control group which studied the same material in the traditional way. In light of these results was a set of recommendations and proposals and use them in other educational institutions developed and proposed for subsequent studies to complement the current research. (Published abstract)