(announcer) a gift is only as good as the network it's on. so give any google pixel 2 and get $300 off with no trade-in required. welcome back to young wonders, cnn heroes special. science, technology, engineering math, you may have heard it referred to as the acronym as s.t.e.m. even at a young age, there's a disproportionate number of girls that turn away from math and