Journal
Entry #6: Reflection on Appendix B
Appendix B in Moursund’s text discusses problem solving
in general, and applied to PBL. Problem
solving is something that is important for students to learn, because they will
encounter it frequently in their futures.
However, when students learn problem solving in school, it is not always
done in a way that can be easily applied to real life. Also, standards for problem solving are not
specifically outlined or followed, so the amount of problem solving introduction
and techniques that students have had varies from student to student. This makes it difficult for teachers to
expect students to use problem solving strategies and skills since some
students may have more experience with this than others. I think it is important for states to move
towards creating problem solving standards that will be followed and upheld for
certain grade levels.
The text formally describes a “problem”, which according
to Moursund must have four parts: givens, goal, resources, and ownership. While reading this, I analyzed my PBL lesson
and decided that I have created a problem for the students to address. First, the students have been given an
initial situation and a goal of creating a piñata out of geometric shapes. The students have time resources (certain
number of days), as well as material resources to create the piñata. The students also have some ownership over
the problem. Though they are not
completely thinking of the entire project on their own, the students do get to
decide upon whatever shape piñata they wish to create. Students also have ownership because they are
using their own knowledge and thinking skills to complete different aspects of
the project, which will then affect their grades. I think that my project based learning idea
has all of the necessary components of a problem.
The text discussed the ideas of representing problems
mentally, with writing and drawing aids, or by using the computer. For my project, I wanted the students to
mentally picture what they want the piñata to look like first. However, since they are creating the piñata
in groups of four or five students, it is important for students to share their
thoughts or pictures. In order for this
to happen, I required the students to sketch out what they may want the piñata
to look like, and then agree on one design (based on all of the group members’
designs). Then, as a group, students
also use computer models in two-dimensions and in three-dimensions to create
virtual models of their piñatas. I like
how the text stressed how computer models are similar to mental models because
of the ability to easily change the model.
The 2D and 3D models that the students create in my PBL lesson can be
easily changed and adapted if a problem appears.
When students encounter problems, they should apply
problem solving techniques to attempt to solve these problems. The book stressed the fact that there are
many domain specific techniques that can be done, but that there are also some
strategies that are applicable for almost all domains. One of these strategies was to break the
large problem up into smaller more manageable parts. I attempted to outline this for my students by
creating different parts of the project, and requiring parts to be done
correctly and checked before moving onto the next part. This allows the students to practice this
strategy of breaking the large problem into smaller problems. In my PBL lesson, students also follow the six-step
process writing strategy, adapted for PBL.
First, they brainstorm to develop a proposal. Then, they draft their piñata in 2D and 3D
forms. Next, they request materials
based on the shape of the piñata and its surface area. Finally, they create the piñata using the
material and find its volume. After each
step the students receive teacher feedback which may require them to revise
their work or go back to other steps. After
their final product is created, they “publish” it by displaying it to the class
and explaining their work. I tried to
incorporate all of the steps of problem solving into my developed PBL
lesson. I think that it is extremely
important for students to be able to develop problem solving strategies and
techniques that can be applying to real life situations.