The 21st century New Economic Order (NEO) showed higher level of economic cooperation among nations. As a norm of International Economic Relations (IER), the General Agreement on Tariffs and Trade (GATT) and the World Trade Organization (WTO) Agreement took effect in 1996. The study is a discussion of the conflict and agreement between domestic economic policies and the GATT/WTO from the point of view of Small and Medium Enterprise owners and managers. By applying the qualitative analytic descriptive method of research and the dualistic theory of international law, the study finds that GATT/WTO a) promotes fair competition, b) makes the manufacturing sector more competitive and c) boosts the economic development in the merchandising sector. The study showed that there is no significant difference between the perceptions of SMEs as regards the impact of membership of the Philippines to WTO/GATT. Being at the crossroad to economic globalization, the Philippines faces the challenges of; a) the need to highlight the congruence of national law and membership to GATT/WTO; b) putting up structures and mechanism for inclusive development; c) revisiting regional economic arrangements and d) countering regional terrorism. Nevertheless, the trajectory of economic model remains toward global trade cooperation.

Problem solving is the core and primary objective of mathematics teaching. This study aimed to describe the problem solving abilities of sophomore engineering students of Nueva Ecija University of Science and Technology (NEUST) through the use of case study type, qualitative research method. Results showed that in terms of the ability to identify goals in a problem, the process of problem solving, and the skills of students in problem solving, the respondents showed a satisfactory performance. The most common method used by the respondents in problem solving was the use of equations or formulas, while the least preferred methods were the strategy of working backward and logical reasoning. The respondents displayed difficulty in answering problems in motion, geometry and set operation while the problems about sequence, rate, age, money/investment, combination, time were found easy to solve. Teachers and educators of mathematics are advised to develop instructional materials and activities that will equally address the three different context of problem solving, namely, goal of the problem, process in problem solving, and problem solving skills of students. Keywords - Mathematics Education, problem solving, abilities, goal, process, skill, qualitative method, Nueva Ecija, Philippines.

In this paper, the researcher explored and analyzed the function between integral indices of derivative. It is proved that getting half-derivative twice is equivalent to first derivative. Also getting the triple of one-third derivative is equal to first derivative. Similarly, getting four times of one-fourth derivative is equal to first derivative.