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Line 38: − + − {| style="height:10px; float:right; align:center;"+ − |<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;"> − ''[http://karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> − |} − *'''Estimated Time''' : <br> − 90 minutes − *'''Materials/ Resources needed''' :<br> − Laptop, geogebra file, projector and pointer. − *'''Prerequisites/Instructions, if any''' : <br> − #The students should have prior knowledge of parallel lines , transversal, angles and types of angles formed when a pair of parallel lines are intersected by a transversal. − #They should know what the terms interior, exterior, adjacent, alternate, consecutive, congruent, linear and corresponding mean. − #Students should know the definition of complementary angles, supplementary angles, and congruent angles. − − *'''Multimedia resources''' : − Laptop − *Website interactives/ links/ / Geogebra Applets : <br> − − *'''Process''': <br> − #Reiterate that when a transversal intersects parallel lines, several pairs of congruent and supplementary angles are formed. − #Have students draw two parallel lines and a third line(transversal) intersecting those two lines on their own paper. Direct them to think about any angle relationships they see. Have them discuss their conjectures with a partner. − #The teacher can next project the GeoGebra worksheet and discuss about types of angles and their relationships with the class . − #Finally the teacher and students can summarize together the angle relationships.<br> − Linear pair of angles - adjacent and supplementary<br> − Vertical angles - congruent<br> − Corresponding angles -congruent<br> − Alternate interior angles - congruent<br> − Same side interior angles - supplementary<br> − Alternate exterior angles - congruent<br> − Same side exterior angles - supplementary<br> − − *'''Developmental Questions (What discussion questions)''' : <br> − #How many pairs of corresponding angles are there ? − #What is true about corresponding angles formed when parallel lines are cut by a transversal? − #Compare different pairs of alternate interior angles. What do you notice? − #<EGD and <AHF are alternate exterior angles. What is another pair of alternate exterior angles? − #Compare different pairs of same-side interior angles. What do you notice? − #Compare different pairs of same-side exterior angles. What do you notice? − − *'''Evaluation (Questions for assessment of the child)''' : <br> − #What are the characteristics of linear angles (adjacent and supplementary) ? − #What do you observe about the angle measures of the linear angles? − − *'''Question Corner''' : − #What do adjacent , alternate, linear , corresponding and consecutive mean individually − #What are complementary angles? − #What are supplementary angles ? − #What does it mean if two angles are congruent? − #What is the complement of 65 degrees − #What is the supplement of 70 degrees? − #Compare angle relationships formed by parallel lines vs. angle relationships formed by non-parallel lines. − − ===Activity No # === − {| style="height:10px; float:right; align:center;" − |<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;"> − ''[http://karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> − |} − *Estimated Time − *Materials/ Resources needed − *Prerequisites/Instructions, if any − *Multimedia resources − *Website interactives/ links/ / Geogebra Applets − *Process/ Developmental Questions − *Evaluation − *Question Corner −
no edit summary
===Learning objectives===
===Learning objectives===
===Notes for teachers===
===Notes for teachers===
===Activity No 1 : Angles formed when a transversal intersects parallel lines ===
===Activity No 1 : Angles formed when a transversal intersects parallel line ===
[[File:4..png|400px]]<br>
[[File:4..png|400px]]
==Concept #2 ==
==Concept #2 ==
===Learning objectives===
===Learning objectives===