自制教具在正余弦函数的图象教学中的应用尝试

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1002-4123|volume|2|9-10

ISSN: 1002-4123

Source: 中学数学教学, Vol.volume, Iss.2, 2015-01, pp. : 9-10

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Abstract