Principles of Mathematics 12 -
Problem Solving
This sub-organizer contains
the following sections:
Prescribed Learning Outcomes
Suggested Instructional Strategies
Suggested Assessment Strategies
Recommended Learning Resources
PRESCRIBED LEARNING
OUTCOMES
It is expected that students
will use a variety of methods to solve real-life, practical, technical, and
theoretical problems
It is expected that students
will:
- solve problems that
involve a specific content area such as geometry, algebra, trigonometry, statistics,
probability
- solve problems that
involve more than one content area
- solve problems that
involve mathematics within other disciplines
- analyse problems and
identify the significant elements
- develop specific skills
in selecting and using an appropriate problem-solving strategy or combination
of strategies chosen from, but not restricted to, the following:
- guess and check
- look for a pattern
- make a systematic
list
- make and use a drawing
or model
- eliminate possibilities
- work backward
- simplify the original
problem
- develop alternative
original approaches
- analyse keywords
- demonstrate the ability
to work individually and co-operatively to solve problems
- determine that their
solutions are correct and reasonable
- clearly explain the
solution to a problem and justify the processes used to solve it
- use appropriate technology
to assist in problem solving
SUGGESTED
INSTRUCTIONAL STRATEGIES
Problem solving is a key
aspect of any mathematics course. Working on problems involving a range of mathematical
disciplines can give students a sense of the excitement involved in creative
and logical thinking. It can also help students develop transferable real-life
skills and attitudes. Multi-strand and interdisciplinary problems should be
included throughout Principles of Mathematics 12.
- In a class discussion,
define problem solving with students, pointing out that in mathematics problem
solving involves many disciplines, including algebra, geometry, trigonometry,
statistics, and probability.
- Introduce new types of
problems directly to students (i.e., without demonstration), and facilitate
as they attempt to solve them.
- Have students work in
small co-operative groups of three to five when introducing new types of problems.
- Model and reinforce student
use of a variety of approaches to problem solving (e.g., algebraic and geometric).
- Emphasize that many
problems may not be solved in one try and that it is sometimes necessary to
revisit the problem, start over, and try again.
- Have students or groups
discuss their thought processes as they attempt to solve a problem. Point
out the strategies inherent in their thinking (e.g., guessing and checking,
looking for a pattern, making and using a drawing or model).
- Ask leading questions
such as:
- What are you being
asked to find out?
- What do you already
know?
- Do you need additional
information?
- Have you ever seen
similar problems?
- What else can you
try?
- When students arrive
at solutions to particular problems, encourage them to generalize from or
extend the problem situations.
Note: See Appendix
G for examples of multi-strand and interdisciplinary problems that most students
should be able to solve. These problems are indicated with an asterisk (*)
SUGGESTED
ASSESSMENT STRATEGIES
Students analyse problems
and solve them using a variety of approaches. Assessment of problem-solving
skills is made over time, based on observations of many situations.
Observe
- Have students present
solutions to the class individually, in pairs, or in small groups. Note the
extent to which they clarify their problems and how succinctly they describe
the processes used.
Question
- To check the approaches
students use when solving problems, ask questions that prompt them to:
- paraphrase or describe
the problem in their own words
- explain the processes
used to derive an answer
- describe alternative
methods to solve a problem
- relate the strategies
used in new situations
- link mathematics
to other subjects and to the world of work
Collect
- For selected problems,
have students annotate their work to describe the processes they used. Alternatively,
have them provide brief descriptions of what worked and what did not work
for particular problems.
Self-/Peer Assessment
- Ask students to keep
journals to describe the processes they used in dealing with problems. Have
them include descriptions of strategies that worked and those that did not.
- Develop with students
a set of criteria to self-assess problem-solving skills. The reference set,
Evaluating Problem Solving Across Curriculum, may be helpful in identifying
such criteria.
RECOMMENDED
LEARNING RESOURCES
Please see the introduction
to Appendix B for a list of suggested utility software that supports this course.
The Western Canadian Protocol
Learning Resource Evaluation Process has also identified numerous teacher resources
and professional references. These are generally cross-grade planning resources
that include ideas for a variety of activities and exercises.
These resources, while not
part of the Grade Collections, have Provincially Recommended status.
Appendix B includes an annotated
bibliography of these resources for ordering convenience.
©
2000 Copyright. All Rights Reserved. Curriculum Branch.
Maintained by: Mathematics Coordinator
Revised: December 4, 2000
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