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One of the most discussed issues currently is the competition of people among nations. Cross-cultural communication is becoming more and more apparent in countries in various aspects of life. This study aimed to provide an overview of how branding on Indonesia could be done through cross-cultural communication. The study examined cross-cultural communication between lecturers of Bina Nusantara University (Binus University) in Indonesia and lecturers from the Appalachian State University (ASU) the United States, as part of their research into Asian countries. The American lecturers interacted with lecturers from Binus University, Jakarta, as well as with the community in several regions of Indonesia. The study used a qualitative approach with descriptive method. This research was a case study with open interviews and observation of data collection techniques. The results showed that the interaction between Indonesian and American lecturers had built positive branding for Indonesia as reflected in posts on the American lecturers’ social media accounts which they did on their initiative after they visited Indonesia.

The authors conducted a study related to using English in learning mathematics, for grade 7 junior high school students in a private national plus school. The purpose of this study was for the reader to open up further insights related to the topic. This study was carried out with experimental design, by doing different treatment between classes in the same level. The subjects of the study consisted of 63 students spread into three classes; 7A, 7B, and 7C. Class 7C was a control group, using Bahasa Indonesia (mother tongue) in learning Mathematics. Class 7A and 7B were the experimental groups, where 7A was in English and 7B used bilingual (English and Indonesian). Results of the study include the following; using English is not detrimental to the students in mark achievement that is shown by the average of the final mark of Mathematics that is not significantly different. The challenges that arise from learning Mathematics need to be reviewed from the process, readiness, independence, motivation of students and needs to be followed up critically so that students can achieve better results. Short and long-term programs need to be created and observed in order to support the learning process of Mathematics for students, such as training teachers to be able to teach mathematics in English, in supporting action study by teachers, managed by the school.