Polygons
Polygons
Watch this video clip to learn more about polygons.
Follow up Practice Exercises
Activity 1 select name of polygon
Activity 2 drag and drop
Activity 3 polygon or not polygon
Activity 4 multiple activities
Grade: 3 Date: _______________________________________
Subject: Mathematics
Objective: Students will be able to name polygons using the names of their
corner points in order (e.g., ABCDE) and identify each pair of letters with the
appropriate line segment.
Materials Needed:
1. Whiteboard or chart paper
2. Markers
3. Printed polygon shapes (triangle, square,
pentagon, hexagon, etc.)
4. String or yarn to outline polygons on the
floor
5. Individual whiteboards and markers for
students
6. Projector
7. Teacher’s Blogsite
Duration: 60 minutes
Engage (10 minutes):
1. Begin by having the students reading and
discussing a poem on polygons. Show students various polygon shapes
(triangle, square, pentagon, hexagon, etc.).
2. Ask students to name the shapes they see.
3. Discuss with students what makes each shape
unique (e.g., number of sides, angles).
4. Introduce the concept of naming polygons using
the names of their corner points in order. For example, a triangle might be
named ABC, a square might be named ABCD, and so on.
5. Show an example of how to name the corners of
a polygon using letters.
Explore (15 minutes):
1. Have students watch and discuss short video clip on Polygons. Divide students into small groups.
2. Provide each group with a set of printed
polygon shapes.
3. Instruct students to name the polygons using
the names of their corner points in order.
4. Encourage students to discuss and collaborate
within their groups to come up with the correct names for each polygon.
5. Circulate among the groups to provide guidance
and support as needed.
Explain (15 minutes):
1. Gather students together as a whole class.
2. Review the concept of naming polygons using
the names of their corner points in order.
3. Discuss how each pair of letters in the
polygon name corresponds to a line segment.
4. Use their work boards to draw examples of
polygons and label the corner points with letters.
5. Demonstrate how to identify each pair of
letters with the appropriate line segment.
Elaborate (15 minutes):
1. Divide students into pairs.
2. Provide each pair with a piece of string or
yarn.
3. On the floor, use the string or yarn to
outline various polygons.
4. Use rubber band with the geo-boards provided
to show polygons
5. Instruct students to name the corner points of
each polygon using letters and to identify each pair of letters with the
appropriate line segment using the string or yarn.
6. Encourage students to check and correct each
other’s work as needed.
Evaluate (7 minutes):
1. Distribute individual work boards and markers
to each student.
2. Ask students to draw and name a polygon on
their work boards.
Complete activities on teacher's blogsite.
3. Instruct students to identify each pair of
letters with the appropriate line segment.
4. Circulate among the students to assess their
understanding and provide feedback as needed.
Closure (3 minutes):
1. Review the key concepts learned during the
lesson, including naming polygons using the names of their corner points in
order and identifying each pair of letters with the appropriate line segment.
2. Encourage students to continue practicing
naming and identifying polygons at home.
3. Field any final questions or concerns from
students.
Poem on Polygons
In corners sharp, where edges meet,
Polygons dance, their shapes complete.
Triangles with angles three,
Square and steady, sides agree.
Pentagons with five sides bold,
Hexagons, their secrets hold.
Octagons, with eight sides strong,
Polygons, a geometric song.
In ABCs and DEs they dwell,
Each corner named, each line to tell.
From A to B and C to D,
Polygons emerge, for all to see.
Their symmetry, a wondrous sight,
In mathematical delight.
From simple shapes to complex schemes,
Polygons fill our wildest dreams.
So let us learn their names with care,
In this math lesson, we will dare.
To name each corner, line by line,
In polygons, our knowledge will shine.
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