@article{oai:soka.repo.nii.ac.jp:00041014,
 author = {西里, 美菜保 and 小枝, 達也 and NISHIZATO, Minaho and KOEDA, Tatsuya},
 issue = {75},
 journal = {教育学論集},
 month = {Mar},
 note = {The percentage of children with no overall intellectual developmental delay but with significant difficulties in each of the learning and behavioral domains is reported as 8.8%, and the percentage of children/students with significant difficulties in learning is 6.5%. In addition, it was reported that among children and students who do not have intellectual developmental delays but show significant difficulties in various areas of learning and behavior, about 3.4% show significant difficulties in "calculation" or "reasoning," which are particularly relevant to math learning. The abilities related to arithmetic learning and the development of schema related to number and quantity are acquired through a process from early childhood, and it is assumed that difficulties in manipulation and comprehension are due to an innate impairment of the individual, which is different from educational environment factors.
　On the other hand, difficulties related to arithmetic learning often become more pronounced after entering elementary school and are often recognized as poor learning rather than as a predisposing factor for arithmetic difficulties. Various methods have been proposed for supporting children with arithmetic difficulties in Japan, as well as evaluation methods, and confirmation of their effectiveness has been conducted developmentally. However, as these difficulties do not surface until school age, early detection and early intervention are important issues, and evaluation combining objective indicators is also important.
　To understand the condition of children who present difficulties in learning arithmetic, this paper discusses the accuracy of estimates when children with arithmetic difficulties perform the Number Line Task by iPad app, focusing on the degree of fit（ representations） of the function and presenting a plot diagram. The results suggest that children with arithmetic learning difficulties show an immature estimation.},
 pages = {123--136},
 title = {算数に困難がある児童のiPadを用いた Number Line Taskの成績について},
 year = {2023}
}