Sides and Vertices
TEACHERS:
SUBJECT:
Lauri Lonon
Math First Grade
STANDARD:
 1.G.1 Distinguish between defining attributes (e.g., triangles are closed and three-sided)
versus non-defining attributes (e.g., color, orientation, overall size); build and draw shapes
to possess defining attributes
OBJECTIVE (EXPLICIT):
 Create shapes with sides and vertices using a geoboard
EVIDENCE OF MASTERY (MEASURABLE):
DURING
BEFORE
SUB-OBJECTIVES, SWBAT (SEQUENCED FROM BASIC TO COMPLEX):

KEY VOCABULARY:
MATERIALS:
Sides
Geoboards
Corners
Rubber bands
Vertex
Task cards
Vertices (more than one vertex)
ENGAGE (MAKE CONTENT AND LEARNING RELEVANT TO REAL LIFE AND CONNECT TO
STUDENT INTEREST)
TEACHER WILL:
STUDENT WILL:
Create a shape on a geoboard.
 Orally answer the questions
Ask:
 Students guide teacher through
 How many sides does my shape
example using a geoboard.
have?
 How many corners does my shape
have?
Create another shape on a geoboard.
Repeat questions.
CO-TEACHING STRATEGY IF APPLICABLE
TEACHER WILL:
STUDENT WILL:
Explain activity: With a partner, you will
 Create shapes with sides and
take turns picking a task card. Player 1 will
vertices using a geoboard and task
pick a task card. Player 1 will create a
card
shape based on what the task card says to
do. Player 2 will use the same task card
and create a different shape than Player 1.
Repeat steps but start with Player 2.
CO-TEACHING STRATEGY IF APPLICABLE
AFTER
TEACHER WILL:
STUDENT WILL:
Ask:
Partner Share:
 What is a side?
 A side is a straight line or edge on a
shape.
 What is a corner?
Say: A vertex is another name for a corner.
 A corner of a shape is where 2 sides
If you have more than one vertex, we call it
come together to make a point.
vertices.
 A vertex is another name of a
Ask: What is a vertex?
corner.
Say: In math journals, write what a side of
Write: A side is a straight line or edge on a
a shape is. Write what a vertex is. Draw
shape. A vertex is another name of a
two shapes with different number of sides
corner.
and vertices. Label the sides in your
Draw a picture of two different shapes.
drawing and label your vertices.
Label the sides and vertices.
CO-TEACHING STRATEGY IF APPLICABLE
Make a shape with 4
sides.
Make a shape with 4
vertices.
Make a shape with 3
sides.
Make a shape with 3
vertices.
Make 2 shapes with
the same number of
sides.
Make 2 shapes with
the same number of
vertices.
Make 2 shapes with
different number of
sides.
Make 2 shapes with
different number of
vertices.