Theorems and problems on parallelograms
| Philosophy of Mathematics |
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Concept Map
Textbook
Karnataka state textbook :Chapter 9
Additional Information
These videos provide proofs of theorems related to triangle and parallelogram on the same base and between same parallels
Useful websites
Reference Books
NCERT mathematics- Chapter 9: Areas of parallelograms and triangles
Teaching Outlines
Concept #
Learning objectives
Notes for teachers
These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.
Activity No #
- Estimated Time
- Materials/ Resources needed
- Prerequisites/Instructions, if any
- Multimedia resources
- Website interactives/ links/ Geogebra Applets
- Process (How to do the activity)
- Developmental Questions (What discussion questions)
- Evaluation (Questions for assessment of the child)
- Question Corner
Activity No #
- Estimated Time
- Materials/ Resources needed
- Prerequisites/Instructions, if any
- Multimedia resources
- Website interactives/ links/ Geogebra Applets
- Process (How to do the activity)
- Developmental Questions (What discussion questions)
- Evaluation (Questions for assessment of the child)
- Question Corner
Concept #
Learning objectives
Notes for teachers
These are short notes that the teacher wants to share about the concept, any locally relevant information, specific instructions on what kind of methodology used and common misconceptions/mistakes.
Activity No #
- Estimated Time
- Materials/ Resources needed
- Prerequisites/Instructions, if any
- Multimedia resources
- Website interactives/ links/ Geogebra Applets
- Process (How to do the activity)
- Developmental Questions (What discussion questions)
- Evaluation (Questions for assessment of the child)
- Question Corner
Activity No #
- Estimated Time
- Materials/ Resources needed
- Prerequisites/Instructions, if any
- Multimedia resources
- Website interactives/ links/ Geogebra Applets
- Process (How to do the activity)
- Developmental Questions (What discussion questions)
- Evaluation (Questions for assessment of the child)
- Question Corner
Hints for difficult problems
Here is a micro analysis of solution for a problem [geometry_problemsolving.odt here]
| Sln | Explanation | Analysis | |||
| 1 | 
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Drawing ABCD.Cyclic orderD above | |||
| 2 | AB=CD=4X | Propertiesof parallelogram | |||
| 3 | AD=BC=2X+1 | Propertiesof parallelogram | |||
| 4 | AD=BC=2X+1 | Propertiesof parallelogram | 5 | AD=BC=2X+1 | Propertiesof parallelogram |
| 6 | AD=BC=2X+1 | Propertiesof parallelogram | |||
| 7 | AD=BC=2X+1 | Propertiesof parallelogram | |||
| 8 | AD=BC=2X+1 | Propertiesof parallelogram |
|}
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