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Paper Play

Geometry & modular

Ddakji (paper flip card)

Two paper strips woven into one sturdy square. Throw it to flip your friend’s ddakji over!

  • DifficultyIntermediate
  • PaperSquare, 15 × 15 cm × 2
  • Steps8
  • About8 min

Why this level: The folds are easy, but the four flaps close in turn and the last one must be tucked under the first.

You need: 2 sheets of origami paper (two colours look best)

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Story

Ddakji-chigi is an old Korean children’s game: slam your ddakji down hard so that your friend’s ddakji on the floor flips over, and it becomes yours. When paper was precious, children made ddakji by gluing layers of old book covers or mulberry paper; later they folded big ones from paper such as old calendars. Japanese children play a similar flipping game called menko. This two-sheet folded ddakji is a traditional design, and nobody knows who first folded it.

Did you know? Long ago, Japanese menko were little clay disks, made from the 1700s. Lead menko came later, in the Meiji era, and paper menko became popular toward the end of that era, which ended in 1912.

Learn more (external sources)

Steps at a glance

  1. 1. Fold each sheet in thirds

    Both sheets white side up. Fold the top third down, then fold the bottom third up over it, making a long strip.

  2. 2. Fold the ends at an angle

    On both strips, fold the top corner of the left end down and the bottom corner of the right end up, at 45°. Each strip becomes a slanted parallelogram.

  3. 3. Turn one strip

    Turn the blue strip a quarter turn to the right so it stands upright. Do not flip it over.

  4. 4. Lay one across the other

    Lay the blue strip across the red one so the centre squares of the two strips match exactly.

  5. 5. First flap: red, right

    Fold the red strip’s right-hand triangle to the left over the edge of the blue strip, onto the centre.

  6. 6. Second flap: blue, top

    Fold the blue strip’s top triangle down onto the centre.

  7. 7. Third flap: red, left

    Fold the red strip’s left triangle to the right onto the centre.

  8. 8. Tuck in the last flap

    Fold the blue strip’s bottom triangle up, sliding its point under the slanted edge of the first flap (red, right). Your ddakji is done!

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