<p class="0abstract">The integration of technology in learning is increasingly popular and inevitable, especially during the Covid-19 pandemic. In mathematics education, Geogebra has been used as a pedagogical tool in learning mathematics from elementary to university. The present study aims to explore first-year prospective elementary teachers’ experience constructing 3-D shapes using GeoGebra. This study uses a case study method with 40 first-year prospective elementary teachers from an elementary initial teacher training from a public university in Riau, Indonesia. The participants worked in small groups and discussed some 3-D shapes through an online platform, and in the end, each participant reflected their attitudes towards the integration of GeoGebra in learning 3-D shapes. The findings show that prospective elementary teachers discussed six types of 3-D shapes; cube, rectangular prism, rectangular pyramid, cylinder, cone, and spheres. They prefer to discuss curved surfaces rather than flat surfaces of 3-D shapes. In addition, prospective elementary teachers have positive attitudes towards integrating GeoGebra in elementary initial teacher training. They believe that GeoGebra supports them to understand better the concepts of volume and surface area of 3-D shapes, facilitate students to understand the properties of a geometry object, and compare the object one made using hand drawing to using GeoGebra. Meanwhile, difficulty in using the tools to construct 3-D shapes in GeoGebra becomes a hinder to understand mathematics concepts and properties. The implication of this study is that there is a potential to integrate GeoGebra in mathematics learning in elementary teacher training.</p>

This is a qualitative study with descriptive data presentation. It is aimed at investigating the tendency of abuse of power in exploiting personal pronouns of Obama’s political speeches.The employed grand theory in this study is social cognition theory introduced by Teun, A. Vandijk. There are three aspects that need to be empowered: textual, social cognition and social context in disclosing the implied meanings of the use of personal pronouns in Obama’s political speeches.The data of this study were gathered by means of speech transcript collections of Obama’s speeches: 2010, 2011 and 2014 concerning terrorism issues. These transcripts obtained from online media which had been spread worldwide. The objective of this study is to describe which personal pronouns frequently exploited by Obama in his political speeches and discover the hidden meanings of the adopted personal pronouns.The findings demonstrate that: (1) Obama, tends to use personal pronouns ‘we' and ‘our', (2) Obama seems to have been selective in exploiting personal pronouns by referring to both certain contexts and situations before and after the speech was delivered, (3) The features of Obama's speeches are rhetorical, persuasive and manipulative. In terms of cognition and social context, these speeches indicate that intelligence, personal and social experiences do influence towards the emergence of a discourse. The implicitly conditioned and engineered dominance and hegemony are not considered as a force or coercion. Rather, it is thought as a common and justified when being exposed frequently.

Mathematical and didactic knowledge presented in mathematics textbooks and other resources, like mathematics comics (MCs), needs to be evaluated from a lens of appropriate theoretical framework in mathematics education before it can be used as a medium for teaching and learning mathematics.Therefore, this study investigates mathematical and didactic competencies that were reflected in MCs designed by pre-service elementary teachers. The framework for analysing mathematical knowledge embedded in these MCs is based on the Anthropological Theory of the Didactic, specifically a praxeology. This study utilized a content analysis technique within a qualitative approach. Thirteen MCs were analysed using a praxeological analysis; the type of task and techniques (praxis block) as well as the possible technology and theory (logos block). The findings demonstrate that the mathematical praxeologies embedded in MCs belong to five mathematical domains, namely numbers and operations; number theory; fractions, decimals, and percentages; ratio and proportion; as well as measurement. Additionally, the analysis revealed that seven of these MCs were related to a single domain, while the others belong to two or three mathematical domains. Concerning the mathematical praxeologies, most of MCs focus on presenting the practical blocks, the type of task and the techniques, while only a few could provide the theoretical lens to justify the practical blocks.

Tim pengabdian masyarakat mahasiswa universitas riau melakukan pemberdayaan masyarakat dengan mengembangkan produk yang dapat dijadikan buah tangan khas air dingin. Air dingin sendiri merupakan kelurahan yang terdapat di pekanbaru. Tujuan dari pemberdayaan masyarakat ini ialah untuk mengembangkan potensi masyarakat air dingin, meningkatkan pendapatan masyarakat, dan diharapkan dapat membuka peluang kerja bagi manyarakat sekitar. Selain itu tim pengabdian masyarakat juga menginformasikan terhadap pelaku usaha untuk memberikan pengemasan yang sesuai mulai dari kemasan maupun desain produk. Hal ini bertujuan agar produk dapat bersaing dengan komoditas yang telah ada. Dengan kemasan yang menarik didukung dnegan desain yang kekinian akan menjadi daya tarik tersendiri selain itu juga dapat menambah nilai jual dari suatu produk. Tentunya hal ini juga disertai dengan pemasaran melalui jejaring sosial seperti facebook, instagram, dan Whatsapp.

Abstract. This descriptive research was conducted at Rantau Kopar village, Rokan Hilir District from January to June 2017. The reason for this study is due to the drastic declining of biodiversity of fish species at Rangau river despite the existence the local wisdom to protect the watershed in the area. It is aimed to discover the perspectives local wisdom in preventing the decreasing of fish biodiversity at Rangau river. The employed sampling technique was snowball technic sampling which involved 30 respondents. The primary data were obtained using observation and interview; the secondary data (documents). Data consist of community composition, livelihood, community participation in preserving the local wisdom, the synergy between the local wisdom and the policies of the local administration. The data were computed in percentage and were analyzed descriptively. The findings demonstrated that the local wisdom was compiled by the local community whose livelihood as fishermen. Conversely, in 2017, the local people did not comply with both sanction and the local customary law, there had been careless exploitation of the water across the watershed to be oil palm plantation area and the increasing number of oil palm farmers. This study concludes that the main threat facing the local wisdom is that the policies of local administration are not synergic with the local wisdom as stipulated in the regulations and conservation of the area across the watershed of Rangau. The implication of this study is used for the supplementary materials for the bioetnomalay subject in the Indonesian education