pre-heat your oven to 350˚
in a bowl combine the flour, oats, brown sugar, baking soda, salt, and butter
cut the cold butter in small chunks, and toss with the dry ingredients
use a pastry blender or two knives to cut the butter in, keep working until it resembles crumbs
measure out 1 cup and set aside
press the remaining crumbs in a 9X13 pan
spread the jam over the top of the base layer
sprinkle with the fresh berries
crumble the remaining crumbles over the berries
bake for 35-40 minutes or until the top is lightly browned and the bottom crust is set (you can give it a little poke with a knife to test it)