Chapter 1 of the CBSE Class 12 Flamingo textbook is titled "Lost Spring." It is a thought-provoking chapter that discusses the lives of children who work as ragpickers and street vendors in the city of Firozabad. The chapter highlights the harsh realities of their lives, their struggles, and their lost childhood.

Explanation and Summary of Chapter 1 - Lost Spring:

1. Introduction:
- The chapter begins by introducing the city of Firozabad, known for its glass-blowing industry.
- It highlights the beautiful spring season that arrives in the city but is lost on the children who are trapped in a cycle of poverty and labor.

2. The Lives of Ragpickers:
- The chapter explores the lives of children who work as ragpickers in Firozabad.
- It describes their living conditions in a slum area called Seemapuri, where they live amidst garbage and filth.
- The children scavenge through the garbage to find recyclable materials that they can sell.

3. The Plight of Child Laborers:
- The chapter sheds light on the harsh reality of child labor in Firozabad.
- Children work in hazardous conditions in glass factories, risking their health and lives.
- They suffer from various ailments due to exposure to toxic fumes and chemicals.

4. Dreams and Aspirations:
- Despite their difficult circumstances, the children in Firozabad have dreams and aspirations.
- They yearn for education and a better future, but their poverty and responsibilities hinder their chances of fulfilling their dreams.

5. Education Denied:
- The chapter discusses how education is denied to these children.
- They are trapped in a vicious cycle of poverty, forced to work to support their families.
- The lack of access to quality education perpetuates their poverty and prevents them from escaping their circumstances.

6. Dignity and Identity:
- The chapter touches upon the loss of dignity and identity faced by these children.
- They are denied basic rights and are often looked down upon by society.
- The children are unaware of their own potential, living a life devoid of hope and opportunities.

In conclusion, Chapter 1 of the CBSE Class 12 Flamingo textbook, "Lost Spring," delves into the lives of children engaged in labor in Firozabad. It provides a grim portrayal of their struggles, dreams, and the denial of education and dignity. The chapter serves as a reminder of the need to address child labor and poverty to ensure a brighter future for these children.