Slide the tabs of one unit into the pockets of the next—no glue is usually needed.
Use a "mountain fold" (fold down) or "valley fold" (fold up) as indicated by dashed lines. VID-20230122-WA0373.mp4
If it's one of these popular crafts, here is how you usually start: Match the numbers on the tabs to the corresponding edges. Slide the tabs of one unit into the