Why does chemistry depend on problem solving




















The can be responsible for the curriculum. It enabled geometric information to be converted into algebraic form. This meant that the tools of algebra could be applied to solve geometric problems and the tools of geometry to algebraic problems. That greatly increased the ability of mathematicians to solve problems. Log in. DIY Projects.

Study now. See Answer. Best Answer. Study guides. Chemistry 20 cards. How does a buffer work. What happens in a neutralization reaction. What is a conjugate acid-base pair. Why is water considered to be neutral. Physics 20 cards. Which term explains whether an object's velocity has increased or decreased over time. Which of these is a characteristic of nonmetals.

What is the only factor needed to calculate change in velocity due to acceleration of gravity 9. What term is used to describe splitting a large atomic nucleus into two smaller ones. Vaping Study Guide 3 cards. Propylene Glycol. Q: Why is the ability to solve problems important in the study of chemistry?

Herron, J. What can we do about Sue: a case study of competence. Journal of Chemical Education , 63, — Holtzlaw, H. General chemistry 7th ed. Lexington: D. Huffman, D. Journal of Research in Science Teaching , 34, — Johnstone, A. Capacities, demands and processes — a predictive model for science education.

Education in Chemistry , 23, 80— Assessment of expert-novice chemistry problem-solving using hypercard: Early findings. Journal of Science Education Technology , 2, — Lave, J. Situated learning: Legitimate peripheral. Cambridge: Cambridge University Press. Larkin, J. Models of competence in solving physics problems. Science , , — CrossRef Google Scholar. A research methodology for studying how people think. Journal of Research in Science Teaching , 21, — Lee, K. General strategy for solving high school electrochemistry problems.

International Journal of Science Education , 18, — Cognitive variables in problem-solving in chemistry: A revisited study. Science Education , 80, — Lesh, R. Principles for developing thought-revealing activities for students and teachers. Lesh Eds. Mahwah: Lawrence Erlbaum. Lythcott, J. Problem-solving and requisite knowledge of chemistry. Journal of Chemical Education, 67 , — Mason, D. Differences in problem-solving by nonscience majors in introductory chemistry on paired algorithmic-conceptual problems.

Nakhleh, M. Are our students conceptual thinkers or algorithmic problem solvers? Journal of Chemical Education , 70, 52— Concept learning versus problem-solving: there is a difference. Journal of Chemical Education , 70, — Niaz, M. Manipulation of M Demand of chemistry problems and its effect on student performance: A neo-Piagetian study. Journal of Research in Science Teaching , 25, — The relationship between m-demand, algorithms, and problem-solving: A neo-Piagetian analysis. Journal of Chemical Education , 66, — Manipulation of logical structure of chemistry problems and its effect on student performance.

Progressive transitions from algorithmic to conceptual understanding in student ability to solve chemistry problems: A Lakatosian interpretation. Science Education , 79, 19— Cognitive conflict as a teaching strategy in solving chemistry problems: A dialectic-constructivist perspective.

Journal of Research in Science Teaching , 32, — How students circumvent problem-solving strategies that require greater cognitive complexity. Chemistry is the study of matter and the changes that material substances undergo. Of all the scientific disciplines, it is perhaps the most extensively connected to other fields of study. As you begin your study of college chemistry, those of you who do not intend to become professional chemists may well wonder why you need to study chemistry.

You will soon discover that a basic understanding of chemistry is useful in a wide range of disciplines and career paths. You will also discover that an understanding of chemistry helps you make informed decisions about many issues that affect you, your community, and your world. A major goal of this text is to demonstrate the importance of chemistry in your daily life and in our collective understanding of both the physical world we occupy and the biological realm of which we are a part.

Often the instruction has been verbal and formal. This will be minimally effective if students have not had the concrete experiences. Hence, misconceptions arise. Although the very word "misconception" has a negative connotation, this information is important for chemistry teachers. They are frameworks by which the students view the world around them. If a teacher understands these frameworks, then instruction can be formulated that builds on student's existing knowledge.

It appears that students build conceptual frameworks as they try to make sense out of their surroundings. In addition to the fundamental properties of matter mentioned above, there are other concepts that are critical to chemical calculations. One of these is the mole concept and another is the particulate nature of matter. There is mounting evidence that many students do not understand either of these concepts sufficiently well to use them in problem solving.

It appears that if chemistry problem solving skills of students are to improve, chemistry teachers will need to spend a much greater period of time on concept acquisition. One way to do this will be to present concepts in a variety of contexts, using hands-on activities. What does this research imply about procedures that are useful for helping students become more successful at problem solving?



0コメント

  • 1000 / 1000