It could be hard for students with specific learning disorder (SLD) to learn how to write on their own. Therefore, this research aims to use operant conditioning to teach students with learning disabilities to write and raise their motivation to learn. The method of the research is the single subject design. The writing skill will be measured continuously through the research. Moreover, environment, sample and motivation will be measured and described in detail. The participants are four female native Arabic speaking students: two of them are in grade 9 and the other two in grade 7. The training program lasted for one academic term, with 5-7 sessions for each student. The aims of the sessions are to help students with SLD to write without any help and to increase their motivation. Students' performance in general and their motivation to learn were improved during the experiment. However, the performance of each of them differed, as some students improved more than others. Applications and implications are discussed. The recommendation of the research is to provide assistance to students with learning difficulties, through studies on operant conditioning, and combining operant conditioning with other behavioral methods.