MINIMIZING MISCONCEPTION OF IONIZATION ENERGY THROUGH THREE-TIER DIAGNOSTIC TEST
Journal Title: Periódico Tchê Química - Year 2018, Vol 15, Issue 30
Abstract
Research about conception and misconception of specific topics in science education is still sightseen among researchers. Ionization energy is one concept that possible generate mis(understanding) for students. Therefore, this study aimed to investigate the understanding of ionization energy among high school students. Totally, 118 students from East Java-Indonesia were invited to an online-Ionization Energy Diagnostic*Modification (IEDI*M) test through survey study. IEDI*M consisted of 12 multiple choices with three-tier items. The findings mapped the main misconceptions of ionization energy, especially for Group 1, Group 2, Period 2, and Period 3 established on the periodic system. By using three-tier tests, the percentages of misconceptions decreased from one-tier to two-tier and from two-tier to three-tier levels.
BUILDING QUALITY INFRASTRUCTURE SERVICES FOR WATER AND SANITATION PROVIDERS IN LATIN AMERICA – EXAMPLES FROM GERMAN DEVELOPMENT COOPERATION
The Physikalisch-Technische Bundesanstalt (PTB) implements development cooperation projects in the area of quality infrastructure on behalf of the German government. In Latin America, it is currently cooperating with ins...
CHEMISTRY, BIOCHEMISTRY AND SIGNALING: THE NFE2L2/AP-1 PATHWAY
In humans, the NFE2L2/AP-1 pathway controls more than 5% of the protein-coding genes. This pathway is responsible for cellular reactions towards ROS, xenobiotics, highly reactive substances of various nature, drug resist...
PHOTOTHERMAL TECHNIQUE FOR MEASURING THERMAL CONDUCTIVITY AND DIFFUSIVITY OF NANOFLUIDS: A NEW APPROACH
Nanofluids have become nowadays of special importance because of their different uses in industry, therefore, to propose methods to calculate their thermal properties would be useful. In this work, a new variant for the...
DEVELOPMENT OF REFERENCE MATERIAL OF HOLMIUM OXIDE FOR SPECTROMETERS WAVELENGTH CALIBRATION: FEASIBILITY STUDIES
The use of certified reference material (CRM) in chemical analyzes is an important requirement in quality assurance systems, since it allows the metrological traceability of results, thus achieving valid and comparable r...
HYDROCHEMICAL CHARACTERIZATION OF URBAN SPRING WATERS FROM TIJUCO STREAM, SUB-BASIN OF RIBEIRÃO DO ONÇA, CENTRAL-NORTH REGION OF BELO HORIZONTE
This work focuses on drawing up the hydrochemical profile of water samples collected in five springs of the Tijuco stream. The evaluation was based on quantification of the elements Al, As, Ba, Be, B, Ca, Cd, Co, Cr, Li,...