Fourteen-year-old students' misconceptions regarding the sub-micro and symbolic levels of specific chemical concepts

Slapničar, Miha (avtor), Tompa, Valerija (avtor), Glažar, Saša A. (avtor), Devetak, Iztok (avtor)

Learning and presenting chemi- cal concepts at the triple level of chemical concepts provides opportunities for the de - velopment of misconceptions. The research aimed to identify potential misconceptions of chemical concepts: the states of matter, a pure substance, a mixture, an element, a compound, a physical change, and a chemical reaction at the sub-micro level when solving problems incorporating sub-microrepresentations. A total of 188 14-year old students, attending six different primary schools, participated in the re - search. A chemistry achievement test com- prising five problems at the macroscopic, sub-micro, and symbolic levels was used to obtain data about students’ miscon- ceptions of selected concepts. The results showed that the majority of students had formed inadequate mental models (mis - conceptions) for the chemical concept of the liquid state of water (66.5%). The lowest level of misconceptions is related with the gaseous state of matter, because almost all students (98.5%) solved the problem cor - rectly. It can be concluded that the results of the research are significant for chemistry teachers because they can: select and apply adequate educational strategies to avoid the deepening or development of miscon- ceptions and make the courses practically oriented by analysing students’ misconcep - tions and develop teaching strategies to minimise these problems in the chemistry classroom

• Jezik: Slovenski jezik
• Ključne besede: submikroskopske predstavitve
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: PEF - Pedagoška fakulteta
• Založnik: Šiauliai : Scientific Methodical Center "Scientia Educologica"
• Leto izida: 2018
• Št. strani: 620-632
• Številčenje: 17
• PID: 20.500.12556/RUL-102368
• ISSN: 2538-7138
• COBISS.SI-ID: 12095817
• Datum objave v RUL: 31.08.2018

Sekundarni jezik

• Jezik: Angleški jezik
• Ključne besede: chemical concepts