Step 1: Step 1: Make a square
Do this by folding one corner over to make a right triangle, then trim off the excess portion of your rectangle. When you unfold the triangle you will have a perfect square.
Extra is trimmed off and tossed aside.
Now that we have a square we can get started.
Step 2: Step 2: Fold square in half like a book
Step 3: Step 3: Fold the rectangle into thirds as shown
See that second edge, it should be even with your first fold.
It makes a little heart shape
See the inside corner is lined up with that first edge? Basically you just are making a cone and flattening it.
Step 4: Step 4: Fold the heart shape in half down the center
You can see the heart shape creased down the middle. That crease is what we're going to cut our shape around.
Step 5: Step 5: Cut out the shape of your snowflake
Cut some notches out of the crease to make little holes and designs within each point. Cut notches out of the other side as well for more detail.