Reflecting and Symmetry

4.G.A.3
Module 11
Differentiation Activity

Students use a ruler as a line of symmetry and create reflections with pattern blocks.

Parallel Lines on a Geoboard (Virtual or Real)

4.G.A.3
Module 11, Lesson 10
Differentiation Activity

Students can use either real geoboard, a representation or a geoboard, or a virtual geoboard to play the square game.  Students start by spinning a spinner to find out if they will add a parallel or perpendicular line. Students must will try to make a small square.  When they complete a square, they can claim it.  The student with the most claimed squares is the winner. 

You can make it more challenging by letting students create any length of line, not just all the way across.

Interactive Geoboard
Game Directions and Spinner