Professional standards for teaching mathematics / 
Prepared by the working group of the commission on teaching for school mathematics of the national council of teachers of mathematics 
 - 7a ed. 
 - Virginia :   National Council of Teachers of Mathematics,  1998. 
 - 196 paginas. :  ilustraciones.,  28 cm. 
<br/><br/>Incluye referencias 
<br/><br/><label>ISBN: </label>0873533070 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Matemáticas--Estudio y enseñanza -- Normas
<br/><br/><label>LC Class. No.: </label>QA11  / N29 1998