Pascal Triangle Instructions

These are instructions for making a unit which can be used to build a Pascal triangle pattern. Start from a square of paper.

1. Pinch small creases to marks the mid point of two opposite edges, and fold two opposite sides to the center line, using the creases to find the center line.	2. Fold the top edge to one of the lines made:	3. repeat to the other line, and open out:	4. Turn over and use the crease marks to fold the top quarter of the paper over:
5. Then fold the bottom corners over to meet the edge:	6. Fold down the corners to get to the previous step, and turn over, and fold up the bottom quarter:	7. Open out and the creases should look like this:	8. The top part should naturally fold down like this:
9. Bring the bottom part up:	10. And flatten like this:

Make several units.

11. Put two together, so they look like this on one side:

12. and this on the reverse:

A pattern can be built up. Usually, when adding a unit to the pattern, it's easier to open it out and fold it back flat after slotting into position:

Here's 6 units joined together:

you can also use paper that is rectangular but not square and make longer units, and put them together to possibly get something like this:

It is possible to fold the edges up neatly to finish off so they won't come open.

There are several variations, or additions possible. See the followng pages (click on the picture to go to the page):

A more permanent lock		Triangular finishing unit		Square finishing unit

Home