LEADER 00000cam a2200265   4500 
008    760422s1976    caua     b    001 0 eng u 
010       75016772 
020    0846504081 
035    (CaOTULAS)120976056 
035    |9(CaOTULAS)120976056 
040    LC 
049    RIDM 
050  0 QA135.5|b.B29 
081    CTL0026596 
082    372.7 
090    QA135.5 .B29 
100 1  Baur, Gregory R. 
245 10 Helping children learn mathematics :|ba competency-based 
       laboratory approach /|cGregory R. Baur, Linda Olsen 
       George. 
260    Menlo Park, Calif. :|bCummings Pub. Co.,|cc1976. 
300    406 p. :|bill. ;|c25 cm. 
504    Includes bibliographies and index. 
650  0 Mathematics|xStudy and teaching (Elementary) 
700 1  George, Linda Olsen. 
921 99 BAURGRE99 
935    1302