A CROSS-NUMBER PUZZLE FOR PRIMARY GRADESAuthor(s): Margaret F. WillerdingSource: The Arithmetic Teacher, Vol. 4, No. 5 (NOVEMBER 1957), p. 221Published by: National Council of Teachers of MathematicsStable URL: http://www.jstor.org/stable/41183957 .

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November, 1957 221

within each class and that is more in harmony with other schools. The new program will seek to develop greater understanding and that calls for modes of teaching and learning that feature dis- covery and development instead of the memoriza- tion of procedures. The pupil who understands the relationships of arithmetic and who can discern a mathematical situation outside a textbook and then

knows what to do and how to do it has really mas- tered arithmetic. It is hoped that the pupils of Meridian will not accelerate at too rapid a rate so that they fail to understand what they are doing and master only the simpler concepts, principles, and skills in the program. The program of enrich- ment can do much to give life and significance to learning.

A CROSS-NUMBER PUZZLE FOR PRIMARY GRADES Margaret F. Willerding

San Diego State College

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ACROSS

1. What number comes after 110? 3. What time does this clock say?

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4. How many tens are there in 40?

5. What time does this clock say?

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7. When counting by 5's what number comes after 20?

9. ■

• • •

• • •

This is a number picture of what number? 10. When counting by 2's what number comes after

150?

DOWN 2. How many eggs in a dozen? 3. What number comes after 117? 4. What three numbers come after 3? 7. 1+1=? 9. What number comes after 74?

10. What is 6 take away 5? 1 1 . What is 7 take away 5?

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