Exploring and Classifying Triangles Activities
Exploring &
Exploring &
Classifying Triangles
Classifying Triangles
Triangle Sort
Triangle Sort
Sort the triangles into three groups so
Sort the triangles into three groups so
that no triangle belongs into more than
that no triangle belongs into more than
one group.
one group.
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Let's Try It Again!
Let's Try It Again!
Sort your triangles into three new
Sort your triangles into three new
groups so that no triangle belongs into
groups so that no triangle belongs into
more than one group.
more than one group.
O
O
n
n
c
c
e
e
y
y
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o
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h
a
a
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Now let’s look at some
Now let’s look at some
of the vocabulary we
of the vocabulary we
can use to describe and
can use to describe and
sort triangles…
sort triangles…
Triangles can be classified by:
Triangles can be classified by:
Scalene
Equilateral
Isosceles
Right
Acute
Obtuse
Angles:
Sides:
No sides are the
same length.
At least 2 sides are
the same length.
All sides are the
same length.
Has one angle that
is a right (90
degree) angle.
All 3 angles are
acute (less than 90
degrees).
Has 1 angle that is an
obtuse angle (greater
than 90 degrees).
Creating Triangles
Creating Triangles
Use the AngLegs
and your
knowledge of the
types of triangles
to try to create a
triangle that fits
both labels on the
chart.
Sketch your
triangle on the
chart.
Which two triangles were
Which two triangles were
impossible to make? Why?
impossible to make? Why?
Engage in hands-on activities to explore and classify triangles based on their sides and angles. Sort triangles, create different types, and analyze why certain combinations are impossible. Enhance your understanding of triangle vocabulary and attributes in a fun and interactive way.
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Presentation Transcript
Exploring & Classifying Triangles
Triangle Sort Sort the triangles into three groups so that no triangle belongs into more than one group. Once you have sorted them, get one sticky note per each group. Then label your groups with sticky notes to identify the attribute(s) they have in common.
Let's Try It Again! Sort your triangles into three new groups so that no triangle belongs into more than one group. Once you have sorted them, get one sticky note per each group. Then label your groups with sticky notes to identify the attribute(s) they have in common.
Now lets look at some of the vocabulary we can use to describe and sort triangles
Triangles can be classified by: Sides: Isosceles Scalene No sides are the same length. Equilateral All sides are the same length. At least 2 sides are the same length. Angles: Right Acute Obtuse Has 1 angle that is an obtuse angle (greater than 90 degrees). Has one angle that is a right (90 degree) angle. All 3 angles are acute (less than 90 degrees).
Creating Triangles Use the AngLegs and your knowledge of the types of triangles to try to create a triangle that fits both labels on the chart. Isosceles Equilateral Scalene Right Acute Sketch your triangle on the chart. Obtuse
Which two triangles were impossible to make? Why?
