America 250 Diamond Burst

Go big and bold! In America 250 Diamond Burst, the left half of an 8×8 grid is packed with nested red and blue diamonds radiating from a bright white center, divided by a dashed line of symmetry. Students reflect every piece to the right half to complete a dazzling concentric burst for America's 250th birthday, 1776 to 2026.

This is the densest, most challenging sheet in the series. Nearly every square is a half-square triangle, so students must reflect color, position, and orientation across dozens of pieces, flipping each triangle to mirror across the line. The eye-catching result makes it a favorite that students actually want to finish.

Aligned to CCSS 4.G.A.3, it works as a challenge task, capstone activity, fast-finisher extension, or a no-prep patriotic geometry sheet for grades 3–5. A completed answer key is included for quick checking.

Print and go—clean layout and Workybooks brand styling drop it into any symmetry and reflections unit.