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Line 129: − − ===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 − ===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 Line 161:
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Line 289: − − ===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
→Concept # 5. Angle bisector-Its construction
# Are angles <ABA' and <A'BA the same ? Justify
# Are angles <ABA' and <A'BA the same ? Justify
# Differentiate between the zero angle and a complete angle.
# Differentiate between the zero angle and a complete angle.
==Concept # 4. Angle constructions==
==Concept # 4. Angle constructions==
===Notes for teachers===
===Notes for teachers===
===Activity No # ===
===Activity No # ===
==Concept # 5. Angle bisector-Its construction==
==Concept # 5. Angle bisector-Its construction==
===Learning objectives===
===Learning objectives===
===Notes for teachers===
===Notes for teachers===
Activity - Construction of angle with measure 22.5∘
Activity - [[Activity-construction of angles|Construction of angle with measure 22.5∘]]
This activity helps to illustrate the 'angle bisector' construction three times since we construct ∡22.5 by constructing ∡90∘ (bisecting a segment / straight angle ∡180∘, then bisect ∡90∘ to get ∡45∘ and finally bisect ∡45∘ to get ∡22.5∘).
This activity helps to illustrate the 'angle bisector' construction three times since we construct ∡22.5 by constructing ∡90∘ (bisecting a segment / straight angle ∡180∘, then bisect ∡90∘ to get ∡45∘ and finally bisect ∡45∘ to get ∡22.5∘).
#What is the supplement of 70 degrees?
#What is the supplement of 70 degrees?
#Compare angle relationships formed by parallel lines vs. angle relationships formed by non-parallel lines.
#Compare angle relationships formed by parallel lines vs. angle relationships formed by non-parallel lines.
= Hints for difficult problems =
= Hints for difficult problems =