Dissolve yeast in 1 c. warm water. Stir in salt and oil. Gradually stir in flour. Beat vigorously 20 strokes. Let dough rest about 5 minutes.
Put dough in a warm place, cover with a damp towel, and let rise until double in size (about 45 minutes).Punch dough down with your fist to let out the air. Divide dough in half.
Lightly grease 2 baking sheets or 2 10-inch pizza pans. With floured fingers, pat each half of the dough into a 10-inch circle. Build up edges of pizzas with your fingers to keep sauce from running off.
Spread pizza sauce over dough. Sprinkle with grated cheese and your favorite toppings.Bake at 425°F for 20 to 25 minutes. Let pizzas stand at least 5 minutes before cutting.