Topic 11: TwoDimensional Shapes and Their Attributes
TOPIC 11: TwoDimensional Shapes and Their Attributes
Domain: Geometry
Common Core State Standards include:
3.G.1: Understand that shapes in different categories may share attributes, and that the shared attributes can define a larger category.
3G.2: Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole.
introtogeometry.notebook  
File Size:  1921 kb 
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Lesson 11.1Lines and Line Segments
VOCABULARY:
POINT An exact point.
LINE A set of points that is endless in 2 directions.
LINE SEGMENT A part of a line with 2 endpoints.
PARALLEL LINES 2 lines that NEVER cross.
INTERSECTING LINES 2 lines that cross at ONE point.
POINT An exact point.
LINE A set of points that is endless in 2 directions.
LINE SEGMENT A part of a line with 2 endpoints.
PARALLEL LINES 2 lines that NEVER cross.
INTERSECTING LINES 2 lines that cross at ONE point.
LESSON 112: ANGLES
VOCABULARY:
RAY A part of a line with one endpoint
ANGLE 2 rays with the same endpoint. That endpoint is the VERTEX of the angle.
RIGHT ANGLE Makes a square corner
PERPENDICULAR If 2 lines, line segments, or rays make a right angle, they are perpendicular.
ACUTE ANGLE An angle that is open less than a right angle
OBTUSE ANGLE An angle that is open more than a right angle
RAY A part of a line with one endpoint
ANGLE 2 rays with the same endpoint. That endpoint is the VERTEX of the angle.
RIGHT ANGLE Makes a square corner
PERPENDICULAR If 2 lines, line segments, or rays make a right angle, they are perpendicular.
ACUTE ANGLE An angle that is open less than a right angle
OBTUSE ANGLE An angle that is open more than a right angle
ag_parallel_perpendicular.notebook  
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File Type:  notebook 


Lesson 11.3 Polygons
A polygon is a closed shape made up of line segments. Each line segment is a side of a polygon. The point where two sides meet is a vertex of the polygon. A line segment that connects two vertices that are not next to each other is a diagonal.
PARALLEL LINES: INTERACTIVE
INTERACTIVE GEOBOARD
INTERACTIVE GEOBOARD
Here is a fun video about polygons!
Here are some learning sites about polygons:
Lesson 11.4 Triangles
Triangles can be described by their sides or angles.
Watch this video about triangles:
Lesson 11.5 Quadrilaterals
Quadrilaterals have special names.




3D SHAPES
Click below to view the Brainpop video:




HAVE SOME
TANGRAM FUN!
Click below to view a slide show about Grandfather Tang's Story
sararitchie.ppt  
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File Type:  ppt 