3 rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides...
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3 rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal sides for the equilateral triangle, right angle for the right triangle). Lesson to be used by EDI-trained teachers only. DataWORKS Educational Research (800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected] CFU Students, you already know that some triangles look the same. Triangles that are the same can sometimes be classified into groups. Today, we will classify triangles by their attributes. Learning Objective Today, we will classify 1 triangles by their attributes. 1 put into groups CFU What are we going to do today? What does classify mean? Classify means __________. Which two triangles are the same? Activate (or Provide) Prior Knowledge 1 . 2 . A A B B C C Name __________________________ A triangle is a shape with three sides and three angles.
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Transcript of 3 rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides...
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
CFUStudents, you already know that some triangles look the same. Triangles that are the same can sometimes be classified into groups. Today, we will classify triangles by their attributes.
Learning Objective
Today, we will classify1 triangles by their attributes.1 put into groups
CFUWhat are we going to do today?What does classify mean? Classify means __________.
Which two triangles are the same?
Activate (or Provide) Prior Knowledge
1.
2.
A
A
B
B
C
C
Name __________________________
A triangle is a shape with three sides and three angles.
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Concept Development
What is the difference between an equilateral triangle and an isosceles triangle?Which of the following is a scalene triangle? How do you know?
Triangles can be classified by their attributes2.• The attributes of a triangle are the sides and angles.
FlashcardsRight
Triangles
2 features
CFU #1 Which of the following is an equilateral triangle? How do you know?
CFU #2Which of the following is a right triangle? How do you know?
A B5 in5 in
5 in
4 in
7 in
6 in
4 in4 in
6 in
A B5 in4 in
6 in
A
8 in
9 in6 in
B
8 in
10 in6 in
Classifying Triangles by:
Go toSkill Dev.
An equilateral triangle has three equal sides.
An isosceles triangle has two equal sides.
A scalene triangle has no equal sides.
Equilateral Isosceles Scalene
Sides
Right
A right triangle has one right angle.
3 cm3 cm
3 cm6 cm
4 cm4 cm2 cm
6 cm
5 cm
• A right angle is a 90° angle.
Angles
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
CFU(#1a) How did I/you identify equal sides on the triangle?(#2) How did I/you classify the triangle by its sides?
Skill Development/Guided Practice
Step #1: Look at the triangle carefully.
a. Identify3 equal sides on the triangle. (circle)Step #2: Classify the triangle by its sides. “The triangle is a(an) ______ triangle because _______________.”3 find
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
6 cm
8 cm
6 cm5 cm5 cm
7 cm
Classifying Triangles by Sides
An equilateral triangle has three equal sides.
An isosceles triangle has two equal sides.
A scalene triangle has no equal sides.
3 cm3 cm
3 cm 6 cm
4 cm4 cm 2 cm
6 cm
5 cm
Classify triangles by their attributes.
10 cm
10 cm
10 cm
A8 cm8 cm
8 cm
B
C D
“The triangle is an equilateral triangle because it has three equal sides.”
“The triangle is an equilateral triangle because it has three
equal sides.”
“The triangle is an isosceles triangle because it has two
equal sides.”
“The triangle is an isosceles triangle because it has two
equal sides.”
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
CFU(#1a) How did I/you identify equal sides on the triangle?(#2) How did I/you classify the triangle by its sides?
Skill Development/Guided Practice (continued)
Step #1: Look at the triangle carefully.
a. Identify equal sides on the triangle. (circle)Step #2: Classify the triangle by its sides. “The triangle is a(an) ______ triangle because _______________.”
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
Classifying Triangles by Sides
An equilateral triangle has three equal sides.
An isosceles triangle has two equal sides.
A scalene triangle has no equal sides.
3 cm3 cm
3 cm 6 cm
4 cm4 cm 2 cm
6 cm
5 cm
Classify triangles by their attributes.
E F
4 in
8 in10 in
3 cm 5 cm
7 cm
Return to
Concept
“The triangle is a scalene triangle because it has no
equal sides.”
“The triangle is a scalene triangle because it has no
equal sides.”
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Relevance
CFUDoes anyone else have another reason why it is relevant to classify triangles by their attributes? (pair-share) Why is it relevant to classify triangles by their attributes? You may give me one of my reasons or one of your own. Which reason is more relevant to you? Why?
1. Classifying triangles will help you create interesting designs.
2. Classifying triangles will help you do well on tests.
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
Triangles in paintings. Triangles in buildings.
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
5 cm5 cm
9 cm
Skill Closure
Step #1: Look at the triangle carefully.
a. Identify equal sides on the triangle. (circle)Step #2: Classify the triangle by its sides. “The triangle is a(an) ______ triangle because _______________.”
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
Classifying Triangles by Sides
An equilateral triangle has three equal sides.
An isosceles triangle has two equal sides.
A scalene triangle has no equal sides.
3 cm3 cm
3 cm 6 cm
4 cm4 cm 2 cm
6 cm
5 cm
Classify triangles by their attributes.
A B7 cm7 cm
7 cm
Constructed Response Closure
Summary Closure
What did you learn today about classifying triangles by their attributes? (pair-share)
2 in2 in
?
What is the missing side length that will make the triangle an equilateral triangle?How do you know?
“The triangle is an equilateral triangle because it has three equal sides.”
“The triangle is an isosceles triangle because it has two
equal sides.”
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Independent Practice
6 cm
4 cm
6 cm
Name ________________________
Step #1: Look at the triangle carefully.
a. Identify equal sides on the triangle. (circle)Step #2: Classify the triangle by its sides. “The triangle is a(an) ______ triangle because _______________.”
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles. Classifying Triangles by Sides
An equilateral triangle has three equal sides.
An isosceles triangle has two equal sides.
A scalene triangle has no equal sides.
3 cm3 cm
3 cm 6 cm
4 cm4 cm 2 cm
6 cm
5 cm
Classify triangles by their attributes.
8 cm
8 cm
8 cm
10 cm9 cm
8 cm
A B
C
“The triangle is an equilateral triangle because it has three equal sides.”
“The triangle is an isosceles triangle because it has two
equal sides.”
“The triangle is a scalene triangle because it has no
equal sides.”
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Periodic Review 1
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
12 cm12 cm
12 cm
2 cm2 cm
3 cm
A B
C D
36 in
15 in39 in
Name ________________________
Step #1: Look at the triangle carefully.
a. Identify equal sides on the triangle. (circle)Step #2: Classify the triangle by its sides. “The triangle is a(an) ______ triangle because _______________.”
Classifying Triangles by Sides
An equilateral triangle has three equal sides.
An isosceles triangle has two equal sides.
A scalene triangle has no equal sides.
3 cm3 cm
3 cm 6 cm
4 cm4 cm 2 cm
6 cm
5 cm
Classify triangles by their attributes.
8 in
12 in14 in
“The triangle is a scalene triangle because it has no
equal sides.”
“The triangle is an equilateral triangle because it has three equal sides.”
“The triangle is a scalene triangle because it has no
equal sides.”
“The triangle is an isosceles triangle because it has two
equal sides.”
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Periodic Review 2
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
A B
C D
Name ________________________
Step #1: Look at the triangle carefully.
a. Identify equal sides on the triangle. (circle)Step #2: Classify the triangle by its sides. “The triangle is a(an) ______ triangle because _______________.”
Classifying Triangles by Sides
An equilateral triangle has three equal sides.
An isosceles triangle has two equal sides.
A scalene triangle has no equal sides.
3 cm3 cm
3 cm 6 cm
4 cm4 cm 2 cm
6 cm
5 cm
Classify triangles by their attributes.
20 cm
20 cm 28 cm
7 cm
7 cm 10 cm
4 in4 in
4 in
8 in
4 in6 in
“The triangle is an isosceles triangle because it has two
equal sides.”
“The triangle is a scalene triangle because it has no
equal sides.”
“The triangle is an isosceles triangle because it has two
equal sides.”
“The triangle is an equilateral triangle because it has three equal sides.”
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Periodic Review 3
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
A B
C D
Name ________________________
Step #1: Look at the triangle carefully.
a. Identify equal sides on the triangle. (circle)Step #2: Classify the triangle by its sides. “The triangle is a(an) ______ triangle because _______________.”
Classifying Triangles by Sides
An equilateral triangle has three equal sides.
An isosceles triangle has two equal sides.
A scalene triangle has no equal sides.
3 cm3 cm
3 cm 6 cm
4 cm4 cm 2 cm
6 cm
5 cm
Classify triangles by their attributes.
14 cm
14 cm
22 cm 9 in
5 in7 in
16 in
16 in16 in
25 cm 25 cm
25 cm
“The triangle is an equilateral triangle because it has three equal sides.”
“The triangle is an equilateral triangle because it has three equal sides.”
“The triangle is an isosceles triangle because it has two
equal sides.”
“The triangle is a scalene triangle because it has no
equal sides.”
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Flashcards (Right Triangles)
Teacherwith CFU Is the triangle a right triangle?
How did I know if the triangle was a right triangle?
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
A right triangle has one right angle.• A right angle is a 90° angle.
Right Triangle
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Studentwith CFU Is the triangle a right triangle?
How did you know if the triangle was a right triangle?
Flashcards (Right Triangles)Triangles can be classified by their attributes.
• The attributes of a triangle are the sides and angles.A right triangle has one right angle.
• A right angle is a 90° angle.
Right Triangle
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Flashcards (Right Triangles)
Teacherwith CFU
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
A right triangle has one right angle.• A right angle is a 90° angle.
Is the triangle a right triangle?
How did I know if the triangle was a right triangle?
Right Triangle
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Studentwith CFU
Flashcards (Right Triangles)Triangles can be classified by their attributes.
• The attributes of a triangle are the sides and angles.A right triangle has one right angle.
• A right angle is a 90° angle.
Is the triangle a right triangle?
How did you know if the triangle was a right triangle?
Right Triangle
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Student
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
A right triangle has one right angle.• A right angle is a 90° angle.
Is the triangle a right triangle?
Right Triangle
Flashcards (Right Triangles)
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Student
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
A right triangle has one right angle.• A right angle is a 90° angle.
Right Triangle
Is the triangle a right triangle?
Flashcards (Right Triangles)
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Student
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
A right triangle has one right angle.• A right angle is a 90° angle.
Right Triangle
Is the triangle a right triangle?
Flashcards (Right Triangles)
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Triangles can be classified by their attributes.• The attributes of a triangle are the sides and angles.
A right triangle has one right angle.• A right angle is a 90° angle.
Right Triangle
Is the triangle a right triangle?
How did you know if the triangle was a right triangle?
Studentwith CFU
Return to Concept
Flashcards (Right Triangles)
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
Learning Objective : Classify triangles by their attributes.
Cognitive Strategies Teaching Strategies
Elaboration Demonstration
Targeted vocabulary: classify, triangles, attributes, equilateral, isosceles, scalene, right, right angle, identify
Language Strategies
Vocabulary Words
Academic classify, identify
Content triangles, attributes
Support equilateral, isosceles, scalene, right, right angle
VocabularyStrategy
Multiple-Meaning right
Synonym
Definition classify, identify, equilateral, isosceles, scalene, right angle
Homophone
Internal Context Clue
Listen, Speak Similar Sounds
ReadTracked Reading
Decoding Rules
Write Writing
Content Access Strategies
Comprehensible Input Cognates
Contextual Clues
Graphic Organizer
Contextualized Definitions
Pictures
EDI – Cognitive, Teaching and English Learners Strategies
3rd Grade Measurement and Geometry 2.2 (2Q) Identify attributes of triangles (e.g.; two equal sides for the isosceles triangle, three equal
sides for the equilateral triangle, right angle for the right triangle).Lesson to be used by EDI-trained teachers only.
DataWORKS Educational Research(800) 495-1550 •www.dataworks-ed.com ©2012 All rights reserved. Comments? [email protected]
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