Solve the First Layer Cross

What can we use if we don't have a real Rubik's Cube or a camera to share the finished cross?

Use a 3x3 online cube simulator to practice Steps 3–7 if you lack a physical cube, and if you can't take a photo or video for DIY.org, scan or photograph a clear drawing of your finished first-layer cross as the outcome to upload.

The edge keeps ending up with the wrong side color after I place it—what should I do?

If a bottom edge's side color doesn't match its center, follow Step 9 and turn that side face two quarter-turns (180°) to move the wrong edge back to the top, then reinsert it using Steps 5–7 while keeping your chosen bottom color facing down.

How can I adapt the task for different ages or skill levels?

For younger children, simplify by choosing white as the bottom, using stickers to mark bottom-color edges and practicing only two edges at a time from Steps 3–7, while older kids can repeat Steps 3–7 for all four edges as a timed challenge or learn more advanced algorithms afterward.

How can we extend or personalize the activity beyond just completing the cross?

Extend the activity by decorating the cube or creating a short video for DIY.org that shows you checking each bottom edge against its center as in Step 8, counting the moves you used, and comparing before-and-after shots of the cross.