Modern trends in curriculum construction focus on respecting each individual and encouraging diversity. When developing mathematical curricula, reform groups have analyzed traditional programs and suggested improvements. They recommend introducing real numbers earlier and laying foundations for abstract algebra concepts. Curricula should integrate mathematics topics rather than separating them, and replace Euclidean geometry with algebraic treatments to reduce barriers between subjects. Many states in India have reviewed higher secondary curricula to incorporate interdisciplinary approaches due to mathematics' influence on other subjects. Some experts argue traditional Euclidean geometry is now obsolete and should be removed from high school curricula.