Mr.spahr is by far the best science teacher ive ever had he teaches like hes done it a thousand times and you just get the TEKS that he teaches so easily its like one hour you dont know something the next you know everything about that TEK because of him. He's also forced me to do my best no matter what he never allows students to slack off that he sees potential in. As long as you pay attention and do your best he is easily the best science no not just science the best teacher period that you'll ever learn from. It was truly a gift learning from Mr.Spahr and i hope many others get that gift to learn from him.