From 12: 00 p.m. to 3: 00 p.m., I taught my intro class, 3: 00 p.m. to 6: 00 p.m., I taught my advanced
De 12.00 p.m. a 3: 00 p.m., estuve dictando mi clase introductoria, 3: 00 p.m. a 6: 00 p.m., dicté