live, local, breakin weather with meteo allyson: this week's golden apple award winner took her class to a mha specializes in home design. geoff: and it's changed the way her students look at math. in this classroom, it pays to know the answer. >> horizontal is x axis, vertical is y. geoff: give her an eagle buck. a hundred of these can earn you a trip. >> they just went to gravitopia first of the year so they get a day out of school for earning eagle bucks. geoff: they are the eagles of union christian day school, and this is lori todd's algebra class. where she is literally blowing up the way her students learn math with help of the classic game, battleship. >> i was appalled had to at these are the battleships over here and this is the enemy over there. geoff: using it to teach how to plot points in the coordinate plane. >> so our coordinate is 7, 6. good deal. >> i sank her biggest battleship the aircraft carrier. ,geoff: but what really opened up their minds to math this year was a trip to ikea. >> they were just so overwhelmed by the possibilities. geoff: the project, working in