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Instructional Plan Template
Mathematics Governor’s
Institute 2006
(Download as Microsoft Word
Documents: Instructional
Plan, Flags)
Name
of group members:
Leigh
Duncan, Betty Elliott, Maureen Kishbaugh
Topic/Theme:
Geometry/Symmetry
Level:
Third Grade
Time Element:
50 Minutes
NCTM Standards Addressed:
Identify and describe linear symmetry in
two-dimensional shapes and designs
PA Math Standards Addressed:
o
2.9.3 E:
Identify and draw lines of symmetry in geometric figures
o
2.9.3 F:
Identify symmetry in nature
Math Assessment Anchors Addressed:
o
M3.C.2.1.1
Identify one line of symmetry in a two-dimensional figure
o
M3C.2.1.2
Identify symmetrical two-dimensional shapes
Objectives:
o
Students will
identify/draw one line of symmetry in a two-dimensional figure.
o
Students will
identify symmetrical two-dimensional shapes.
Instructional Strategies and Plan (include
strategies used to help different types of learners, i.e. auditory, visual, etc):
o
INTRODUCTION
(review lines of symmetry)—Have students fold a sheet of paper in half. Ask
children to draw a simple shape on their paper with one side along the fold.
With their paper folded, have children cut out their shape except for the fold.
Have children open up their papers and identify the new shape that they see.
Discuss with children how the two sides of the new shape match.
o
LESSON--Project
a colored transparency of a flag of any nationality. Ask the following
questions:
What
shapes are in the flag?
Is
the flag symmetrical?
Which
way or ways can you fold it to make two halves that match exactly?
Repeat with several flags of different nationalities.
- PRACTICE--Have each group choose a flag they
like from a reference book. Accurately trace or copy a flag, color the
flag, and cut it out. Students then try folding the flag to test for
symmetry. Students share their group flags with the class, telling where
each flag is from and pointing out the colors, shapes and lines of
symmetry.
- CLOSE AND ASSESS—Students complete the attached
activity for evaluation.
Materials/Resources:
construction paper, scissors, colored flag transparencies, books containing pictures
of world flags, tracing paper, crayons, markers, rulers, blank paper
Interdisciplinary Connections:
o
Technology—Websites
related to topic used as extensions
o
Social Studies—Research
flags of the world
o
Art—Design
and present a flag
o
Science—see extensions
Assessment Strategies:
o
Formative Evaluation (checking student understanding
during the lesson):
o
Teacher
observation, class participation, monitor for understanding and adjust
instruction,
o
Summative Evaluation (How will it be determined
that the objectives were achieved?):
Students
will create a flag using at least two colors and show at least one line of
symmetry.
Correctives/Remediation:
Use
prepared two-dimensional geometric shapes to draw or fold lines of symmetry.
Use
MIRAs create and discover lines of symmetry.
Extensions/Enrichment:
o
Nature scavenger
hunt to find symmetrical shapes
o
In-school
scavenger hunt to find symmetrical shapes
o
Related
websites:
www.mathforum.org/varnelle/kgeo.html
www.internet4classrooms.com/skills_3rd_original.html
www.adrianbruce.com/symmetry/9.html
Special Accommodations (special needs students)
o
Description of the Special Needs student selected:
Student
has severely impaired vision.
o
Accommodations to use with this students:
preferential seating, textured geometric shapes, increased size of visual aids,
adaptive technology if available
Key Words: symmetry,
lines of symmetry, properties of geometric figures, congruence, transformational
geometry
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