The purpose of this study was to describe and classify the strategies high school students use when solving stoichiometry problems and compare and contrast problem solving strategies of students with different learning approaches and different conceptual understanding levels. Problem solving: algorithms and conceptual and open-ended the findings of this research show that more effort needs to be made to enhance the students’ conceptual understanding and problem solving skills in chemistry and lastly symbolic or representational chemistry, including the use of symbols, equations, stoichiometry and. Solving and conceptual understanding is included with the intention of documenting stoichiometry’s pck, loughran, mulhall & berry‘s (2004) proposal of content representation (core) has been employed. Problem-solving strategies: mapping and prescriptive methods dave van domelen it has been realized that for students to gain conceptual understanding, the instructor must teach conceptual understanding all problem solving is based on two types of knowledge: knowledge of problem-solving strategies and conceptual knowledge (stewart, p. Conceptual understanding is therefore necessary for solving stoichiometric problems more scientifically concepts such as chemical bonds, balancing of chemical equations, the mole, concentrations of solutions, limiting reagents.
Stoichiometry and related concepts are an important part of student learning in chemistry in this interpretive‐based inquiry, we investigated thai grade 10 and 11 students’ conceptual understanding and ability to solve numerical problems for stoichiometry‐related concepts. Students’ success in stoichiometry problem solving depends mainly on their understanding of the concept of mole and conceptual understanding of the problems. The results of this study explain the algorithmic-dependent students in solving chemistry problems caused by students' lack of understanding of chemical concepts contained in these questions one cause of this dependence is a teacher in delivering course material chemistry, particularly on the topic of stoichiometry, strongly emphasize the.
Students'problem solving strategies in stoichiometry and their relationships to conceptual understanding and learning approaches paper presented at the annual meeting ofthe national association for research in science teaching. Abstract what strategies do high school students use when solving chemistry problems the purpose for conducting this study was to determine the general problem-solving skills that students use in solving problems involving moles, stoichiometry, the gas laws, and molarity. The use of productive inquiry in the teaching of problem solving in chemical stoichiometry thomas dt sedumedi department of mathematics, science and technology education, as an intervention method, whilst the direct lecture method serves the role of benchmarking students’ conceptual understanding. Calculator-based learning, mathematics/symbolic mathematics, reactions, stoichiometry c omprehending the notion of a limiting reagent is a conceptual understanding of limiting reagents to further oxygen, and methane because this method for solving limiting-reagent problems keeps track of the number of molecules in the reaction, it is.
Conceptual understanding in stoichiometry is crucial for any student taking chemistry as a subject as many areas in chemistry are highly related to this conceptual understanding many previous researches found out that students poses a very low conceptual understanding and they also poses many alternative conception related to stoichiometry. The enhanced conceptual understanding was veri ﬁed by problem solving is a formative assessment used in all chemistry then use those same concepts in future lessons in stoichiometry and molar equations prior to the research, teacher a (from. An investigation of successful and unsuccessful students’ problem solving in stoichiometry solve stoichiometry problems i focus on three research questions: 1 to what extent do the difficulties in solving stoichiometry problems stem from poor understanding of pieces (domain-specific conceptual understanding and problem solving. Algorithmic problem solving is independent of competence in conceptual questions these results demonstrate the limits of usual teaching of stoichiometry through the use of formulas. Development of conceptual understanding and problem solving expertise in chemistry jodi l davenport ([email protected]) department of psychology, 5000 forbes avenue.
Better conceptual understanding and problem solving abilities than rote learners because they are efficient information storers and processors therefore, a study of the problem solving. Stoichiometry: problem solving and conceptual understanding students’ conceptual understanding of stoichiometry conceptual understanding in stoichiometry is crucial for any student taking chemistry as a subject as many areas in chemistry are highly related to this conceptual understanding. Many times teachers default to an algorithmic approach to solving stoichiometry problems, which may prevent students from gaining a full conceptual understanding of the reaction they are describing. The conceptual understanding of chemistry relies on acquisition and integration of various principles through representations at the macroscopic level, particulate level and the symbolic level bou jaoude, s, & barakat, h (2003) students' problem solving strategies on stoichiometry and their relationships to conceptual understandings and.
This paper examines college students' understanding of the concept of stoichiometry, the particulate nature of matter, and chemistry problem solving this study closely examined student learning and application of chemistry knowledge, both conceptual and computational, in an attempt to closely examine the disparity between conceptual and. Second, what is the relationship, if any, between student understanding of the algorithms used to teach the conservation of matter (ie, balancing equations and solving problems in stoichiometry) and the conceptual understanding underlying these algorithms. This paper, presented at the 2001 physics education research conference, presents a framework for thinking about knowledge and its organization that can account for known expert-novice differences in knowledge storage and problem solving behavior.
W j gerace, “problem solving and conceptual understanding” 3 study was our initial attempt to develop a mechanism for gauging the interconnected. In determining the effectiveness of the lessons in improving students’ conceptual understanding of stoichiometry, a published conceptual stoichiometry test (cst) was used the instrument consists of six multiple choice items and four constructed response items.
Conceptual understanding, procedural knowledge, and problem solving there is a there is a significant overlap in the definition of conceptual understanding put forth with both the. Abstract the purpose of this study was to determine the effect that cooperative groups heterogeneously based on proportional reasoning ability have on problem solving in regular and honors high school chemistry. Problem-solving as a result of lack of understanding of a number of concepts related to stoichiometry that influence their ability to solve stoichiometry problems thus, this research aims to examine the.