Synopsis As Introduced Amends the School Code. With regard to the textbook block grant program, provides that the textbooks authorized to be purchased must accurately portray the diversity of our society, including the role and contributions of people protected under the Illinois Human Rights Act, and must be non-discriminatory as to certain characteristics under the Act. Provides that the teaching of history of the United States in public schools shall include a study of the role and contributions of lesbian, gay, bisexual, and transgender people in the history of this country and this State. Requires every public elementary school and high school to include in its curriculum a unit of instruction studying the significant role of lesbian, gay, bisexual, and transgender individuals in society. Specifies instruction requirements. Requires the regional superintendent of schools to monitor a school district's compliance with the curriculum requirements. Effective July 1, 2019.