Feedback for Term 2 Your feedback will make me a better teacher Exam Do you think the exam paper was fair? What could have been better about the exam paper?

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Presentation transcript:

Feedback for Term 2 Your feedback will make me a better teacher Exam Do you think the exam paper was fair? What could have been better about the exam paper? 2nd Term What would you like more or less of during our 2 nd term lessons? Any other suggestions or wishes?

Mathematics - '4 pics 1 word' U Can you define this word in a mathematical context? A P LA R T QES I L D R

Mathematics - '4 pics 1 word' R Can you define this word in a mathematical context? E T AP G OOPB N C

Mathematics - '4 pics 1 word' N Can you define this word in a mathematical context? P O X P A H GPE S O

Mathematics - '4 pics 1 word' O Can you define this word in a mathematical context? T H N G P A SEA N N

Mathematics - '4 pics 1 word' G Can you define this word in a mathematical context? P R U R E I JGP L A

Mathematics - '4 pics 1 word' Can you define this word in a mathematical context? G P R U R E I JRP L A

Mathematics - '4 pics 1 word' I Can you define this word in a mathematical context? X T NG O H ETI R R

Mathematics - '4 pics 1 word' I Can you define this word in a mathematical context? X T NG O H ETE R R = 360o

Mathematics - '4 pics 1 word' J Can you define this word in a mathematical context? O K D P N G USI M R

Mathematics - '4 pics 1 word' E Can you define this word in a mathematical context? I E S D E A EGR E O

Polygons A polygon is a shape made from only straight edges Polygons are named on the basis of how many sides they have TriangleQuadrilateralPentagon HexagonHeptagonOctagon 3 sides 4 sides 5 sides 6 sides 7 sides 8 sides You need to learn the following names:Some of the names get silly… SidesPolygon Name Dodecagon Triskaidecagon Tetrakaidecagon Enneadecagon Icosagon Megagon Googolgon Luckily you don’t have to learn these!

Regular and irregular polygons Equilateral Triangle Square Regular pentagon Regular hexagon A regular polygon is one with all sides the same and angles the same Because you often use regular triangles and quadrilaterals, they have special names: To describe all other regular polygons, just put the word ‘regular’ in front of their name An irregular polygon has sides and angles that vary Irregular heptagonIrregular octagon

Name this Shape Regular heptagon

Name this Shape Irregular pentagon

Name this Shape Irregular hexagon

Why is this polygon NOT regular (irregular)? Sides are equal but angles aren’t

Why is this polygon NOT regular (irregular)? Only 2 sides and 2 angles equal

Why is this polygon NOT regular (irregular)? Angles are equal but sides aren’t

Angles in Polygons The angle between pairs of adjacent sides are called exterior angles The angles inside the shape at each corner are called interior angles Can you spot the connection between interior and exterior angles? They add up to 180 o at any corner Interior angle Exterior angle + In this topic, we will look at: the sum of the interior angles of any polygon the sum of the exterior angles of any polygon the interior angle of a regular polygon the exterior angle of a regular polygon