1. 2D shapes © www.SaveTeachersSundays.com 2013

2. 2D shapes How do most 2D shapes get their names? 3 – Triangle 5 – Pentagon 6 – Hexagon 7- Heptagon 8 – Octagon 10 - Decagon © www.SaveTeachersSundays.com 2013 Can you think of some shapes that are just named after how many corners and sides they have? From how many corners and sides they have

3. Polygons and non-polygons A polygon is a closed 2-D shape with straight sides Which of these shapes is a polygon? © www.SaveTeachersSundays.com 2013

4. To access the remaining 12 slides, covering: tips for remembering names of 2D shapes difference between squares and rectangles difference between circles and ovals / ellipses difference between regular and irregular shapes different quadrilaterals and their properties visit http://www.saveteacherssundays.com/maths/year- 3/105/2d-shapes/