 HOUSTON, Minn.--BUSINESS WIRE-- BTS--Minnesota Virtual Academy MNVA, a full-time, tuition-free public-school program of the Houston Public School District is ready to kick off the new school year and give students throughout the state a consistent education option designed to help them reach their full potential. MNVA students and teachers will open their laptops to start the 2021-2022 school year tomorrow, September 7, 2021. For most families, the new school year comes with cautious optimism. Ma 