This page provides samples of 4th grade geometry activities suitable for use in math centers, small group, or whole class settings. All activities are designed to elicit a range of responses and provide opportunities for students to communicate their reasoning and mathematical thinking. Download the sample activities under each standard or purchase the 4th Grade Math Centers eBook and have all the Number, Geometry, Measurement and Data Centers you’ll need for the entire school year in one convenient digital file.

Draw and identify lines and angles, and classify shapes by properties
of their lines and angles.

4.G.A.1 Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.
Sample Activities:
Alphabet Lines 
Angles on the Geoboard
Also included in 4th Grade Math Centers:
Geoboard Line Segments
Name Geometry
Angle Barrier Game

4.G.A.2 Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.
Sample Activities:
Quadrilateral Criteria
Right Triangles on the Geoboard
Also included in 4th Grade Math Centers:
Classifying 2D Figures 
Constructing Quadrilaterals
Sorting Right Triangles

4.G.A.3 Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line symmetric figures and draw lines of symmetry.
Sample Activity:
Symmetry in Regular Polygons
Also included in 4th Grade Math Centers:
Symmetrical Coin Design
Symmetry on the Geoboard
Symmetrical Letters
Symmetrical Designs