The readings, for this week, from A Framework for K-12
Science Education, gave an introduction to new concepts that should put into
science classes. Chapter two describes the principles that this framework is
based off of, and how concepts should be taught as a progression of learning
throughout primary and secondary education. The beginning of Chapter 3
discusses the first dimension of scientific and engineering practices that
should taught in schools.
A Framework included many themes that have been discussed in
earlier readings. These include the importance of modeling in the classroom.
Lehrer’s research and articles argued for this. Argumentation and explanation
were predominant in the articles by Sampson and Reiser, where a student should
learn how to analyze and then communicate what they found to others, through
modeling and representations. Representations were mentioned in A Framework as
well. The article says that, by the end of 12th grade, students
should be able to critique representations and create their own. Our representation assignments and readings covered how representations
have to be used carefully, depending on what is seen in the representation, and
how it can be misleading.
Another common theme was that the goal of science education
is not just to teach a student scientific facts: the results of scientific
practices, but also how those pieces of knowledge were found. This theme has
been constant in almost all of the readings assigned so far this semester. Lehrer
describes, in his modeling articles, how a class should be representative of a
scientific community. Sampson, Jackson, and Greeno also emphasize the
importance of scientific practice as a way for a student to gain an
understanding of science and scientific material. Students discovering facts on
their own is also a good way to make the knowledge meaningful. This could
increase the students’ motivation to learn, which is a difficult thing to do.