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1.1
Definition
Most important mathematics concepts and procedures can best be taught
through problem solving. That is, problems can and should be posed
that engage students in thinking about and developing the important mathematics
they need to learn.
A problem is defined as any
task or activity begins where the student are for which
the students have no prescribed or memorized rules or methods, nor is there
a perception by students that there is a specific “correct” solution method.
Task selected as problem is effective when
it helps students learn the ideas you want them to learn. It must be mathematics
in the task that makes it problematic for the students so that it is the
mathematical ideas that are primary concern. Where do you look for tasks?
Example of a Problem
The following task might be used in grades 3-6 as part of the development of fraction concepts.
Place an X on the number line about where 11/8 would be. Explain
why you put your X where you did. Perhaps you will want to draw and label
other points on the line to help explain your answer.
Note that the task includes a suggestion for how to respond but does
not specify exactly what must be done. Students are able to use their own
level of reasoning and understanding to justfy their answers. In the follow-up
discussion, the teacher may well expect to see a variety of justifications
from which to help the class refine ideas about fractions that are greater
than 1.
1.2
Value of Problem Solving
There is no doubt that teaching with problems is difficult. Tasks must be designed or selected
each day, taking into consideration the current understanding of the students and the needs of
the curriculum. There are good reasons to go to this effort:
Strategy and Process Goals
Places the focus of the students’ attention on ideas
and sense making.
Develops “mathematical power”. Students
solving problems in class will be engaged in all five of the process:
problem solving, reasoning, connections, communication, and representation.
Extend and generalize problems. Students consider
results or processes applied in other situations or used to froms rules
or general procedures.
Metacognitive Goals
Metacognition refers to conscious monitoring and regulation of your
own thought. Good problem solvers monitor their thinking regularly
and automatically. Metacognitive goals are
Monitor and regulate actions
Atitudinal Goals
Problem solving develops the belief in students that they are capable
of doing mathematics and that mathematics makes sense. Everytime
you pose a problem and expect a solution, you say to students, “I
believe you can do this.” Atitudinal goals are
Gain confidence and belief in abilities
Be willing to try and persevere
Enjoy doing mathematics
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