we study the history and recent developments in nonelementarymodel theory focusing on the framework of abstractelementary classes. we discuss the role of syntax and semanticsand the motivation to generalize first order model theory to nonelementaryframeworks and illuminate the study with concrete examplesof classes of models. this first part introduces the main conceps and philosophies anddiscu...

Children’s understanding of mathematical language has been put forward as an important correlate their abilities. To date, no study disentangled the precise roles different types language, such quantitative (e.g., more) or spatial above) in preschool children. The existing studies have limited assessment mathematics to children’s numerical competencies, but they did not consider broader aspects...

This study aims to determine the mathematical critical thinking skills of class XII IPA 1 students at SMAN 5 Sidrap in solving problems arithmetic sequences and series. The type research used is descriptive with a qualitative approach. In this study, there were 3 subjects, namely high, medium low abilities. instruments data collection observation sheets, written tests interview guidelines. resu...

Mathematical material will be easily understood through reasoning and that skills can trained mathematics learning. However, there are still many students who do not have good skills. This study aims to analyses the mathematical of class XI Senior High School on trigonometry in solving problems. research is a qualitative descriptive study. The participants this were 2 students, namely student 1...