Losh, Rosamond <br/><br/>
Primary numbers projects / 
Rosamond Losh and Ruth Mary Weelg ; edited by Henry Suzzallo 
 - Boston :  Houghton Mifflin,  1923 
 - v, 200 p. ;  15 cm. 
 - Riverside educational monographs .
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic, Symbolic and mathematical<br/>Mathematics<br/>Arithmetic--Study and teaching<br/>Project method in teaching
<br/><br/><label>Dewey Class. No.: </label>511.07