Bone marrow. The inside of your bones are filled with a soft tissue called marrow. There are two types of bone marrow: red and yellow. Red bone marrow is where all new red blood cells, white blood cells, and platelets are made.
Mine is 8m x 7m (3m is 10 feet, so around 27 x 23 feet). This is normal for an Australian classroom, although there's a fair bit of variation.
In grade one, the largest decrease in the average class size in a single school was nine students per classroom; in grade 2, the largest decrease was ten students per classroom, and in grade 3, the largest decrease was 12 students per classroom.he ultimate goal of the program was to improve student achievement, particularly in reading, by reducing class size in grades K-3 to 18 students. Through the Department of Education Appropriations Act of 1999, $1.2 billion was initially appropriated for this program.