Does your school provide support for different kinds of learners and how do you support single classrooms for both "advanced" and slower learners?

While the lessons are whole class, different children can engage at different levels of complexity and/or progress at different speeds. For instance, grades 1 & 2 teachers offer ways to extend the Main Lesson for children who are more advanced to aid in their exploration beyond others in the group. For those needing extra support, individualized attention is offered by their teachers. In addition, parent volunteers assist the teacher with various reading groups.