اثر استخدام إستراتيجية مخطط البيت الدائري في التحصيل و التفكير االستداللي في الرياضيات لدى طلبة الصف األول المتوسط.

The paper aims at figuring out The Impact of Using Roundhouse Diagram Strategy on the Achievement and Reasoning Thinking in Mathematics for first graders via testing two null hypotheses. The experiment was conducted on first intermediate students in Salman Al Mohammadi Secondary School/ Misan Province-Iraq, in the academic year 2015-2016. The sample of the study comprised of (50) students who were divided into two isometric groups; experimental and controlling of (25) students each. In order to verify the two hypotheses, the researcher has set an achievement test for both groups. Its items were objective multiple choice ones of four choices each. The researcher prepared a test of reasoning Thinking,and the reliability of the two tests was verified by exposing them to a group of experts. Moreover, the researcher has taught the experimental group according to the roundhouse diagram strategy, while the controlling group was taught in terms of the traditional method. After applying both tests, data was gathered and statistically processed. The results reflected that there was statistically significant variance on the level of (0.05) in achievement and Subliminal Reasoning in favor of the experimental group. In the light of results, the researcher presented a group of recommendations and suggest-ions. [ABSTRACT FROM AUTHOR]