scholarly journals Teacher Perceptions of Ability Grouping Practices in Middle Level Schools

1994 ◽  
Vol 18 (1) ◽  
pp. 117-130 ◽  
Author(s):  
Robert C. Spear
2002 ◽  
Vol 86 (631) ◽  
pp. 3-15 ◽  
Author(s):  
Vicki N. Petzko ◽  
Donald C. Clark ◽  
Jerry W. Valentine ◽  
Donald G. Hackmann ◽  
John R. Norn ◽  
...  

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