I actually am the music teacher but I teach one hour of Algebra 1 to 8th graders.  I have been teaching for 43 years.  I teach at a Lutheran Dayschool in Wisconsin.  Our school has around 225 students 4K to 8th grade.  My class size varies from 8 to 15 depending on the year.  I have my students one period every day for 50 minutes.