1. In a large bowl, combine the flour, oats, baking soda, cream of tartar, and sugar.
2. Using a pastry cutter or fork, cut in the margarine until the mixture resembles cornmeal.
3. Make a well in the center and add milk and eggs. Quickly mix with a fork. Divide the dough in half. Turn out on a floured board.
4. Dip your fingers in flour and lightly flatten each dough half into a 1/2-inch circle. With a knife, cut each circle in half. Cut each half in half again and repeat, to make 8 triangles from each circle.
5. Place triangles on a baking sheet . Bake at 400 degrees F for 15 minutes or until golden and puffy.