TY  - BOOK
ED  -  National Council of Teachers of Mathematics.
TI  -  Topics in mathematics for elementary school teachers
U1  -  510.713 NAT 
PY  - 1964///
CY  -  Washington : National  Council of Teachers of Mathematics, 
KW  -  Arithmetic
KW  -  Foundations
N1  -  Booklet 1. Sets. -- Booklet 2. The whole numbers. -- Booklet 3. Nume ration systems for the whole numbers. -- Booklet 4. Algorithms for oper ations with whole numbers. -- Booklet 5. Numbers and their factors. -- Booklet 6. The rational numbers. -- Booklet 7. Numeration systems for t he rational numbers. -- Booklet 8. Number sentences. -- Booklet 9. The system of integers. -- Booklet 10. The system of rational numbers. -- B ooklet 11. The system of real numbers. -- Booklet 12. Logic. -- Booklet 13. Graphs, relations, and functions. --Booklet 14. Informal geometry. -- Booklet 15. Measurement. -- Booklet 16. Collecting, organizing, and interpreting data. -- Booklet 17. Hints for problem solving. --Booklet 18. Symmetry, congruence, and similarity
ER  -