A lot of states 4 hrs is the minimum instruction hours to be counted as a school day. Homeschoolers in particular often will make use of this and say they cover

A lot of states 4 hrs is the minimum instruction hours to be counted as a school day. Homeschoolers in particular often will make use of this and say they cover much more in 4 hrs of one-on-one instruction than they could at a regular school. At high school level though where there needs to be so many units the minimum doesn't work so well. > Is it common in the U.S. for high school students to have only 4 hours of class per day? No, it's not common at all, it's almost unheard of. Will be interesting to see how this experiment works out.