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Development of teaching materials in the study of Mathematics Ⅶ － Research on the range of numbers that can be processabled to the Estimats number and the processing judgment －
- Source :
- 秋田大学教育文化学部研究紀要 教育科学 = MEMOIRS OF FACULTY OF EDUCATION AND HUMAN STUDIES AKITA UNIVERSITY EDUCATIONAL SCIENCES. 74:47-53
- Publication Year :
- 2019
- Publisher :
- 秋田大学教育文化学部, 2019.
-
Abstract
- We will clarify the range and judgment of the number of children who can process the Estimated the number.We conducted a survey on children of grade 1st to 3rd by Elementary school.Result of investigation, Grade 1st and 2nd children are "Overall view". But, Grade 3rd children are "Decomposition view".We must consider the relationship between guidance of Numerical calculation and guidance of Number calculation.
- Subjects :
- Estimats number
Decomposition view
Overall view
Subjects
Details
- Language :
- Japanese
- ISSN :
- 24334952
- Volume :
- 74
- Database :
- OpenAIRE
- Journal :
- 秋田大学教育文化学部研究紀要 教育科学 = MEMOIRS OF FACULTY OF EDUCATION AND HUMAN STUDIES AKITA UNIVERSITY EDUCATIONAL SCIENCES
- Accession number :
- edsair.jairo.........327c43505f356090bf621e48d31a0c2d