Difference between revisions of "Triangles"
Jump to navigation
Jump to search
| Line 39: | Line 39: | ||
====== [[Formation of a triangle]]: A plane figure formed by three intersecting lines. ====== | ====== [[Formation of a triangle]]: A plane figure formed by three intersecting lines. ====== | ||
| − | ====== [[Elements | + | ====== [[Measures in triangle|Elements and measures in triangle]]: Parameters that are associated and 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. ====== | ||
Revision as of 11:00, 18 April 2019
Concept Map
Additional Resources
OER
- Web resources:
- Wikipedia, the free encyclopedia : The website gives a comprehensive information on triangles from basics to in depth understanding of the topic.
- cbsemathstudy.blogspot.com : The 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 : The 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
Formation of a geometric shape with minimum number of lines is introduced.The key geometric concepts that are associated with it and its properties are elaborated.
Activities
Formation of a triangle: A plane figure formed by three intersecting lines.
Elements and measures in triangle: Parameters that are associated and 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
Triangles can be based on its elements such as sides and angles. Students are able to recognize these formations.
Activities
Types of triangles based on sides: Formation of a triangle depends on measures of sides.
Types of triangles based on angles: Formation of a triangle depends on measures of angles.
Concept 3: Theorems and properties
Properties of triangles are logically proved by deductive method. Relations ships between angles of a triangle when a triangle is formed are recognized and understood.