Download presentation
1
Describe Plane Shapes and Identify Polygons
Lessons 12.1 and 12.3 Describe Plane Shapes and Identify Polygons
2
Lesson Opening In your math notebook describe (using words) the two shapes below.
3
or shapes on a flat surface.
Plane Shapes Both of these shapes are PLANE SHAPES or shapes on a flat surface.
4
Closed Shapes This is a closed shape, or a shape that starts and ends at the same point.
5
These are all closed shapes.
6
Open Shapes This is an open shape, or a shape that does NOT start and end at the same point.
7
These are all open shapes.
8
Polygons Some closed shapes are made up of only line segments. These shapes are called polygons.
9
Polygons Some closed shapes are made up of only line segments. These shapes are called polygons. This polygon has 5 line segments. 1 2 5 3 4
10
Polygons Some closed shapes are made up of only line segments. All of these shapes are polygons.
11
Describe this shape
12
Describe this shape Plane Shape Closed Shape Polygon
Made up of 5 line segments
13
Describe this shape
14
Describe this shape Plane Shape Closed Shape
15
A closed shape that is made up only of line segments.
Polygons A closed shape that is made up only of line segments. A triangle is a polygon with 3 sides (or 3 line segments). A quadrilateral is a polygon with 4 sides (or 4 line segments). A pentagon is a polygon with 5 sides (or 5 line segments). A hexagon is a polygon with 6 sides (or 6 line segments). A octagon is a polygon with 8 sides (or 8 line segments).
16
Describe this shape
17
Describe this shape Plane Shape Closed Shape Polygon
Quadrilateral (4 sides)
18
Describe this shape
19
Describe this shape Plane Shape Closed Shape Circle
20
Describe this shape
21
Describe this shape Plane Shape Closed Shape Polygon Hexagon (6 sides)
22
Describe this shape
23
Describe this shape Plane Shape Closed Shape Polygon
Pentagon (5 sides)
24
Review of what we have learned
Plane Shapes (2-dimensional shapes) Closed Shapes Not Polygons (circles, shapes with curved lines) Polygons Triangles (3 sides) Quadrilaterals (4 sides) Pentagons (5 sides) Hexagons (6 sides) Octagons (8 sides) Other Polygons Open Shapes
25
Exit Ticket Which terms describe the shape below? Plane shape
Closed shape Open shape Polygon Triangle Quadrilateral hexagon Select all the terms that describe BOTH figures below. Closed shapes Open shapes Plane shapes Polygons Triangles quadrilaterals pentagons a, b, d, f a, c, d, f
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.