Willoughby, Stephen S. <br/><br/>
Contemporary teaching of secondary school mathematics /  
Stephen S. Willoughby 
 - London  John Wiley  1967 
 - 430 p. 
<br/><br/>The history of mathematics education in the united states (Page-1),  Modern mathematics (Page-29), Teaching and learning:hints for the classrooms (Page-58), Number system and numeration system (Page-231), Circular function and trignometry (Page-323), Probability and statistics interference (Page-358), Calculus (Page-381), Teaching secondary school mathematics (Page-398). 
<br/><br/><label>LCCN: </label>6626762 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510,WIL