National center for educational research and development  <br/><br/>
Technology: Pedagogical guide, secondary education second year sciences section  

 - Sin El Fil  National center for educational research and development   1999 
 -  216 p.  27 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology -- Study and teaching (Secondary Grade 11) -- Pedagogical guide.<br/>Sciences section -- Technology -- Study and teaching (Secondary Grade 11) -- Pedagogical guide.
<br/><br/><label>Dewey Class. No.: </label>CRDP 373.7 Tech. Guide Gr.11s