Difference between revisions of "Triangles"
Jump to navigation
Jump to search
| Line 5: | Line 5: | ||
====OER==== | ====OER==== | ||
* Web resources: | * Web resources: | ||
| − | ** [https://en.wikipedia.org/wiki/Triangle Wikipedia, the free encyclopedia] | + | ** [https://en.wikipedia.org/wiki/Triangle Wikipedia, the free encyclopedia] : This gives comprehensive information on triangles from basics to in depth understanding of the topic. |
| + | ** [https://jsuniltutorial.weebly.com/ix-triangles.html cbsemathstudy.blogspot.com] : This website gives worksheets for the chapters that can be downloaded. Worksheets for other chapters can also be searched for which are listed based on class. | ||
* Books and journals | * Books and journals | ||
| Line 16: | Line 17: | ||
====Non-OER==== | ====Non-OER==== | ||
* Web resources: | * Web resources: | ||
| − | ** [https://www.brighthubeducation.com/middle-school-math-lessons/39674-triangle-properties-and-angles/ Bright hub education] : | + | ** [https://www.brighthubeducation.com/middle-school-math-lessons/39674-triangle-properties-and-angles/ Bright hub education] : This website describes a lesson plan for introducing triangles and lists classroom problems at the end of the lesson that can be solved for better understanding. |
| − | + | ** [http://www.cpalms.org/Public/PreviewResourceLesson/Preview/40261 CPALMS] : The website gives lesson plan, activities and worksheets associated with triangles. | |
| − | |||
| − | |||
| − | |||
* Books and journals | * Books and journals | ||
| Line 27: | Line 25: | ||
===Learning Objectives=== | ===Learning Objectives=== | ||
| − | * | + | * Identifying a triangle and understanding its formation |
| − | * | + | * Recognizing all parameters related to triangles |
| − | * | + | * Understanding formation of triangles based on sides and angles |
| − | * | + | * Establishing relationship between parameters associated with triangles |
| − | |||
===Teaching Outlines=== | ===Teaching Outlines=== | ||
| Line 46: | Line 43: | ||
# [[Elements of a triangle]]: Terms that are associated with triangle. | # [[Elements of a triangle]]: Terms that are associated with triangle. | ||
# [[Measures in triangle]]: Parameters that are measured in a triangle. | # [[Measures in triangle]]: Parameters that are measured in a triangle. | ||
| − | # [[Interior and exterior angles in triangle]]: Angles formed when a triangle is formed. | + | # [[Interior and exterior angles in triangle]]: Angles formed when a triangle is formed. [[Category:Triangles]] |
[[Category:Class 8]] | [[Category:Class 8]] | ||
Revision as of 09:57, 18 April 2019
Concept Map
Additional Resources
OER
- Web resources:
- Wikipedia, the free encyclopedia : This gives comprehensive information on triangles from basics to in depth understanding of the topic.
- cbsemathstudy.blogspot.com : This website gives worksheets for the chapters that can be downloaded. Worksheets for other chapters can also be searched for which are listed based on class.
- Books and journals
- Textbooks
- NCERT Textbooks – Class 9
- Karnataka Govt Text book – Class 8
- Syllabus documents
Non-OER
- Web resources:
- Bright hub education : This website describes a lesson plan for introducing triangles and lists classroom problems at the end of the lesson that can be solved for better understanding.
- CPALMS : The website gives lesson plan, activities and worksheets associated with triangles.
- Books and journals
- Textbooks
- Syllabus documents (CBSE, ICSE, IGCSE etc)
Learning Objectives
- Identifying a triangle and understanding its formation
- Recognizing all parameters related to triangles
- Understanding formation of triangles based on sides and angles
- Establishing relationship between parameters associated with triangles
Teaching Outlines
Concept 1: Formation of a triangle, elements of a triangle and its measures
- A triangle is a three sided closed figure.
- It is one of the basic shapes in geometry.
- It triangle is a polygon with three edges and three vertices.
- There are three angles in a triangle formed at the three vertices of the triangle.
- Interior and exterior angles in a triangle at a vertex, together form a linear pair.
Activities
- Formation of a triangle: A plane figure formed by three intersecting lines.
- Elements of a triangle: Terms that are associated with triangle.
- Measures in triangle: Parameters that are measured in a triangle.
- Interior and exterior angles in triangle: Angles formed when a triangle is formed.
Concept 2: Types of triangles based on sides and angles
Types of triangles based on angles in the triangle
- Acute triangles are triangles in which the measures of all three angles are less than 90o.
- Obtuse triangles are triangles in which the measure of one angle is greater than 90o.
- Right triangles are triangles in which the measure of one angle equals 90 degrees.
Types of triangles based on sides in the triangle
- Equilateral triangles are triangles in which all three sides are the same length.
- Isosceles triangles are triangles in which two of the sides are the same length.
- Scalene triangles are triangles in which none of the sides are the same length.
Activities
- Types of triangles based on sides: Triangles formed are dependent on measures of sides.
- Types of triangles based on angles: Triangles formed are dependent on measures of angles.