Lines and Angles

OER

 * Web resources:
 * Books and journals
 * Textbooks
 * NCERT Textbooks – Class 9
 * Syllabus documents

Non-OER

 * Web resources:
 * CK12 - This website gives basic facts about parallel lines with examples and review questions.
 * Books and journals
 * Textbooks
 * NCERT Textbooks – Class 9
 * Syllabus documents

Learning Objectives
What are the students expected to understand/ learn from this topic. These can drive from the large concept map and should be listed at the concept level.

Concept 1: Angles
Briefly describe the concept (2-3 sentences)

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Linear pair axiom : If a ray stands on a line, then the sum of two adjacent angles so formed is 180o ======

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Linear pair axiom : If the sum of two adjacent angles is 180o, then the non-common arms of the angles form a line ======

Solved problems/ key questions (earlier was hints for problems).
(This will be directly correlated to the textbook so that teacher gets what they may be looking for but we must have additional questions which are sourced from other resources)

Assessments - question banks, formative assessment activities and summative assessment activities
Categories will be: (Subject), (Topic), (Class 8), (Class 9), (Class 9), (Concept Map), (Question banks), (Assessments), Formative, Summative