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21.
Instruction in arithmetic: Yearbook by
Material type: Text Text
Publication details: Washington National Council of Teachers of Mathematics 1960
Availability: Items available for loan: Library and Documentation Division NCERT (1).

22.
Insights into modern mathematics
Material type: Text Text
Publication details: Washington National Council of Teachers of Mathematics 1957
Availability: Items available for loan: Library and Documentation Division NCERT (1).

23.
Instruction in arithmetic: Twenty-fifth year book by
Material type: Text Text
Publication details: Washington National Council of Teachers of Mathematics 1960
Availability: Items available for loan: Library and Documentation Division NCERT (1).

24.
Insights into modern mathematics: Twenty-third yearbook by
Material type: Text Text
Publication details: Washington National Council of Teachers of Mathematics 1960
Availability: Items available for loan: Library and Documentation Division NCERT (1).

25.
Growth of mathematical ideas grades K-12; twenty-fourth yearbook by
Material type: Text Text
Publication details: Washington The National Council of Teachers of Mathematics 1959
Availability: Items available for loan: Library and Documentation Division NCERT (1).

26.
Revolution in school mathematics: A challenge for administrators and teachers by
Material type: Text Text
Publication details: Washington, DC National Council of Teachers of Mathematics 1961
Availability: Items available for loan: Library and Documentation Division NCERT (1).

27.
Evaluation in mathematics: Twenty-sixth year book by
Material type: Text Text
Publication details: Washington National Council of Teachers of Mathematics 1961
Availability: Items available for loan: Library and Documentation Division NCERT (1).

28.
Evaluation in mathematics: Twenty-sixth year book by
Material type: Text Text
Publication details: Washington National Council of Teachers of Mathematics 1961
Availability: Items available for loan: Library and Documentation Division NCERT (1).

29.
Enrichment mathematics for the grades : Twenty- Seventh yearbook
Material type: Text Text
Publication details: Washington National Council of Teachers of Mathematics 1963
Availability: Items available for loan: Library and Documentation Division NCERT (1).

30.
Instruction in arithmetic: Twenty-fifth year book by
Material type: Text Text
Publication details: Washington National Council of Teachers of Mathematics 1961
Availability: Items available for loan: Library and Documentation Division NCERT (1).

31.
Instruction in arithmetic: Twenty-fifth year book by
Material type: Text Text
Publication details: Washington National Council of Teachers of Mathematics 1960
Availability: Items available for loan: Library and Documentation Division NCERT (1).

32.
Learning of mathematics: Its theory and practice (21st yearbook) by
Material type: Text Text
Publication details: Washington, DC National Council of Teachers of Mathematics 1953
Availability: Items available for loan: Library and Documentation Division NCERT (1).

33.
Revolution in school mathematics: A challenge for administrators and teachers by
Material type: Text Text
Publication details: Washington, DC National Council of Teachers of Mathematics 1961
Availability: Items available for loan: Library and Documentation Division NCERT (1).

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