Complex sentence: In France during the 1960s, educators attempted to instill linear algebra in the first year of secondary school through curriculum on affine dimensional vector spaces; this lead to a backlash in the 1980s that removed linear algebra from the curriculum.
Split into simpler sentences: In France during the 1960s, educators attempted to teach linear algebra through affine dimensional vector spaces in the first year of secondary school. This was met with a backlash in the 1980s that removed linear algebra from the curriculum.