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Triangle Identification Lesson Plan

The lesson plan aims to teach 22 sixth and seventh grade students about different types of triangles - isosceles, scalene, and equilateral - by having them observe triangle shapes without tools, then reexamine with rulers, and finally measure angles with protractors. Students will learn to identify these triangles based on their side lengths and angle measures, and classify them into categories of isosceles, scalene, equilateral, acute, right, and obtuse triangles. The 50 minute lesson incorporates warm up activities, exploration, discussion, and an exit slip reflection for assessment.

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162 views3 pages

Triangle Identification Lesson Plan

The lesson plan aims to teach 22 sixth and seventh grade students about different types of triangles - isosceles, scalene, and equilateral - by having them observe triangle shapes without tools, then reexamine with rulers, and finally measure angles with protractors. Students will learn to identify these triangles based on their side lengths and angle measures, and classify them into categories of isosceles, scalene, equilateral, acute, right, and obtuse triangles. The 50 minute lesson incorporates warm up activities, exploration, discussion, and an exit slip reflection for assessment.

Uploaded by

api-427559206
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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MATHEMATICS LESSON PLAN

Name: Alana Coppock School: Burton Primary School


Year Level: 6/7 Date: 27/8/18
No. of Students: 22 Estimated Duration: 50 minutes
Location: Burton

AREA OF LEARNING: Mathematics –Measurement and Geometry

TOPIC: Angles

BROAD OUTCOME:
Students will learn about the three triangles – isosceles, scalene and equilateral

SPECIFIC LEARNING OUTCOMES:


- Students will be able to identify an isosceles, scalene and equilateral triangle based on their sides
and angles

LEARNING INTENTION:
Students will identify an isosceles, scalene and equilateral triangle
SUCCESS CRITERIA:
- Successfully identify an isosceles, scalene and equilateral triangle
- Understand that an isosceles has two equal sides and angles
- Understand that a scalene triangle has different sides and angles
- Understand that an equilateral triangle has the same angles (60 degrees)
- Know that all three triangles add up to 180 degrees

AUSTRALIAN CURRICULUM:
Classify triangles according to their side and angle properties and describe quadrilaterals (ACMMG165)

Demonstrate that the angle sum of a triangle is 180° and use this to find the angle sum of a quadrilateral
(ACMMG166)

PREPARATION/ORGANISATION:
- Protractors
- Textbooks
- Rulers/Large whiteboard ruler for teacher to use
- Coloured pencils
- Pencils/pens
- Mini whiteboards
- Whiteboard markers and erasers

PROCESSES RESOURCES
ENGAGEMENT/INTRODUCTION:
10 minutes
- Warm up activity:
- Students will listen to the teacher say different degrees
Mini whiteboards
- Students must write on the mini whiteboard if the angle is acute, right,
obtuse, straight, reflex or a full revolution Whiteboard markers and
erasers
EXPLORATION:
15 minutes
- Students will be given an assortment of triangles
- Students are to freely observe these triangles without using any tools Triangle sheet
(rulers or protractors) and write down any observations they can
make from these triangles
Are there similarities or differences?
What are the features?
How did you come to this conclusion?
Can these triangles be sorted into categories?

5 minutes:
- Ask students what they discovered from observing

15 minutes
- Introduce a ruler
- Students are now able to investigate the triangles using a ruler Rulers
- Prompt students with similar questions as above to get them thinking

10 minutes
- Bring students together for a discussion about what they discovered
that was different to the first time
- Introduce equilateral, isosceles, scalene (once students have
discovered this on their own)

15 minutes
- Introduce a protractor
Protractors
- Ask similar questions to prompt students when using a protractor

10 minutes
- Ask students to discuss what they found that was different again
- Introduce acute, right, and obtuse triangles

- Students to sort these triangles into categories

REFLECTION:
10 minutes
Sticky Notes
- Exit slip sticky note – what did you learn today?

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