Aurapun Tanbanjong <br/><br/>
A comparison of the effectiveness of using and not using manipulative materials in teaching addition and subtraction to first grade students in Bangkok, Thailand  [microform] / 
by Aurapun Tanbanjong 
 - Ann Arbor, Mich. :  University Microfilms International,  1983 
 - 2 microfiches ;  11 x 15 cm. 
<br/><br/>Thesis (Doctor of Education)-University of Houston, 1983 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching--Thailand<br/>Education, Primary--Thailand