Preheat oven to 375. Spray and 11x7-inch baking pan with non-stick cooking spray; set aside.
In medium bowl, combine flour, oats, granulated sugar, brown sugar, baking powder and salt. With pastry blender or 2 knives, cut in margarine until crumbly.
Reserve 1 cup oat mixture for streusel topping; press remaining oat mixture onto bottom of prepared pan. Spread preserves over crust; sprinkle evenly with chocolate chips.
Add almonds to reserved 1 cup oat mixture; sprinkle over chocolate chips, patting lightly. Bake 30 to 35 minutes, or until golden brown.
Cool completely in pan until chocolate is firm. To serve, cut into bars.
Don't use a food processor to cut in the butter - it ruins the texture.