Approver Comments:
It is very possible that you have correctly identified Mosze. However, even though his occupation is recorded as "schueler" (ie, student), Mojsze's 1925 birthday makes him a tiny bit old to have been a student at School #1 in 1941.
In addition, there is another student listed in the Lodz Ghetto Database as KALMANOWICZ, Moszek Szymon (b. 01/05/1923 AND 01/06/1929). If the later birthdate is correct, then he, too, is a strong candidate for your research. So, you may want to take a look at his data too.