Giju Bhai Badheka was a renowned Indian educationist and one of the pioneers of child-centric education in India. He strongly believed in the idea of nurturing children's creativity, curiosity, and freedom in learning. Inspired by Mahatma Gandhi’s ideas, he emphasized learning through activity, storytelling, and play, and worked extensively to promote education tailored to the needs and interests of children. He wrote many books for children and teachers and was deeply involved in educational reform during his time. - Option (1): Giju Bhai Badheka – Correct. He is well known as a child educationist and advocate of innovative, child-centered learning.
- Option (2): Vivekananda – Though a great thinker and reformer, he focused more on spiritual and national education rather than child-specific pedagogy.
- Option (3): Gandhi – Mahatma Gandhi contributed significantly to education (Nai Talim), but he is not primarily known as a child educationist.
- Option (4): Jawaharlal Nehru – He is known for his love for children (Chacha Nehru) but was not an educationist by profession.
Answer: $\boxed{\text{Giju Bhai Badheka}}$