What is Program Improvement and why are we in it?

According to NCLB, a school receiving Title I funds is placed in Program Improvement if the school or any of its numerically significant subgroups fails to make AYP (Adequate Yearly Progress) for two consecutive years based on the same factor (e.g., the English/Language Arts AMO, the math AMO, or the participation rate). Additionally, the school goes into PI if it does not meet the API indicator for two consecutive years. A school gets out of PI if it makes AYP for two years in a row.