"I went to Montessori elementary school through sixth grade, with multi-age classrooms and outstanding teachers. Every student can work at his or her own pace. No need to skip grades – you do the reading and math you’re ready for. I wish this were an option for more students. "
This was not our experience. My kids attended Montessori preschool. My STEMy kid was fascinated by the math, loved those works, and worked her way through the kindergarten level materials before she was a “kindergarten” student. There didn’t seem to be any “above grade level” materials for her to work with–I saw them in the 1-3 classroom, but I never saw such in any of the prek-K classrooms I visited (and over the years, I actually saw perhaps 8 of these classrooms at 4 different Montessori schools). The teacher said to me, “I won’t embarass the kindergarten students by asking her to show them anything or work with them”. At some point, she stopped working on her favorite math works. I asked her why she hadn’t been doing them. Her response? “My friend can’t do them, so I won’t do them any more”. That was when I knew we had to get her out of there for regular school. She’d already done most of the “kindergarten” work by then anyhow.
Second kid, different Montessori preschool. At some point, I felt she was ready to read. I asked her whether she was doing any reading at school. She said no because she hated the little books they had for beginning readers. She found them completely uninteresting. I told the teacher about this and asked whether she could get some different books (they had a library in another room). She said, no, she must read those books first before she is allowed to use the library. Completely stalemated. Kid learned to read at home. Teacher didn’t even notice she knew how to read because she never read at school. Eventually, I told the teacher she could read. Teacher didn’t seem to care, said absolutely nothing like “well, then we’ll have to get her some appropriate books”, no, she still hadn’t read those boring little books she hated, which by then were well below her reading level, and for the remaining several months of that year, I never heard of my kid reading anything at school.