Jeffrey Wrensen is the Intermediate Backchannel Coach. He teaches 5th grade at SIS in Hanoi. He started learning to code after the first Vietnam Technology Conference. He has been running an after school Scratch club for 4th and 5th graders. Jeff also likes to use Scratch in class to teach math, story telling, problem solving and teamwork. Along with Scratch, Jeff enjoys experimenting with the Raspberry Pi to program Minecraft in Python and to explore the other possibilities that small, programmable computers offer.