Origami · folding only · Growing · about 15 minutes
Jumping Frog
No scissors · No glue · No adult help needed
- Rectangle of stiff paper or thin card, twice as long as it is wide, 75 x 150 mm (3 x 6 in)
- Marker for the eyes (optional)
Safety: Hop the frog on a table, away from faces and glasses.
Blue dashes: valley fold (toward you). Pink dash-dot: mountain fold (away from you). Thick line with scissors: cut. Yellow: glue.
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Start. Put the rectangle down tall and narrow, with the white side facing up.
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1. Fold and unfold: Fold the top right corner down to the left edge, so the top edge lies along the left edge. Press, then unfold.
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2. Fold and unfold: Fold the top left corner down to the right edge the same way. Press, then unfold. The two creases make an X.
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3. Fold and unfold: Fold the top edge behind along a line through the middle of the X. Press, then unfold.
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4. Squash fold: Push the two sides in at the ends of that last crease. The top folds down into a triangle on top of the body.
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5. Valley fold: Make the front legs: fold the two bottom corners of the triangle's top layers up to its top point.
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6. Valley fold: Fold the tip of each leg out to the side, along a slanted line from the bottom of the leg, so the feet stick out.
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7. Valley fold: Fold the left and right sides of the body in to the middle. Slide them under the triangle at the top.
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8. Valley fold: Fold the bottom edge up to meet the bottom of the triangle.
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9. Valley fold: Fold that same flap back down in half, so its top edge meets the bottom fold. This zigzag is the frog's spring.
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10. Turn over: Turn the frog over. The spring is now underneath, and the frog sits on it.
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11. Draw: Draw two eyes and a wide smile on the head.
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12. Push: Press the back edge of the frog down with one finger, then slide your finger off backward. The frog jumps!
If something goes wrong
- The frog does not jump. Use stiffer paper and crease the zigzag spring sharply. Press the very back edge and let your finger slip off quickly.
- The top will not fold into a triangle. Crease the X and the line across it hard, and fold the middle line behind (not toward you) before you push the sides in.
- The frog flips over when it jumps. That is normal for a strong spring. Press a little more gently, or make the zigzag smaller.