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Windria, Hening; Zulkardi, Zulkardi; Hartono, Yusuf – Elementary School Forum (Mimbar Sekolah Dasar), 2020
Mixed numbers and fraction in general have been a problem for students not only in understanding the concept of itself, but also in understanding the operation of it, such as addition. Thus, supporting students in learning addition of mixed numbers is needed. The aim of this study is to develop a local instructional theory and materials related to…
Descriptors: Educational Research, Grade 4, Elementary School Students, Addition