Start with a few blank sheets of notebook paper (hee! hee!) and a red pen.
Fold the top right corner in all the way to the left edge.
Turn sideways and fold the right edge over until it is flush with the left.
Flip it over and fold about 1/3 of the bottom up.
Fold 1/3 up again.
Flip over again, and tuck the remaining corner under
the pocket fold you have created. Crease. You're done!
Fold the top two corners in towards the center of the page. Flip vertically and repeat on the other side.
Then fold each side edge inwards towards the center.
Fold the two points in towards the center. Then, flip the paper over and fold 1/3 upwards toward the center.
Fold the remaining 1/3 towards the center until you have a small rectangle.
Tuck two of the points into the two little side folds you have created. Voila!
Fold both top corners flush with the other sides' edges and unfold.
Fold the top half of the paper down until it reaches the bottom of the creased 'x.'
Push the two side creases in towards each other to create a triangle.
Fold the two base triangle points upwards to the top point.
Fold each side edge in towards the center.
Fold the bottom edge up until it meets with the bottom of the diamond.
Flip over and fold the top of the front triangle down. Crease.
Fold the bottom two points up until they are just covering the bottom of the point. They will meet in the middle nicely. Tuck under the diamond. Fold the left and right points of the diamond diagonally down. Tuck the two points into the flaps that we previously made above.
That's that! You've got a heart!
Happy folding! I'll pass you a note after class.
Update: In similar news, check out this adorable article about a couple who framed their original middle school love notes to display at their wedding. Love!