Examples for

Common Core Math: Grade 4: Geometry

In fourth grade, students formally define several new types of two-dimensional objects such as points, lines, rays and angles. Students identify and draw parallel and perpendicular lines, find lines of symmetry of two-dimensional figures and categorize angles as right, acute or obtuse. Students then classify shapes based on shared geometric properties. In particular, students recognize the category of right triangles as three-sided figures containing a right angle.
Common Core Standards

Get information about Common Core Standards.

Look up a specific standard:

CCSS.Math.Content.4.G.A.1
grade 4 geometry common core standard G.A.2

Search for all fourth grade standards in a domain:

fourth grade geometry common core standards
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Geometric Objects

Define and visualize two-dimensional geometric objects.

Get a geometric definition (CCSS.Math.Content.4.G.A.1):

perpendicular lines basic definition
mathematical definition of a ray
right angle

Visualize geometric objects (CCSS.Math.Content.4.G.A.1):

what does an acute angle look like?
parallel lines
obtuse triangle
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Defining Shapes

Classify shapes based on defining attributes.

Describe a category of shapes (CCSS.Math.Content.4.G.A.2):

types of quadrilaterals
what is a scalene triangle?
parallelograms

Compare properties of shapes (CCSS.Math.Content.4.G.A.2):

rectangle vs right triangle geometric properties
right triangle vs equilateral triangle
is a square a parallelogram?
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