Bake cake according to directions on box. I use a long rectangle pan. I like the single layer. You may use whichever pan/s you like. When baked, allow cake to cool. Put sliced strawberries in a small bowl. Sweeten berries by sprinkling with sugar and let them set while cake is cooling. When cooled, spread glaze over cake. Pour thawed cool whip in the middle of the cake and spread outward toward to edges of the pan. Top with strawberries. Cover with plastic wrap and keep refrigerated.