On 14 May, the team at Thammasat University's Tha Prachan campus chalked a #schoolrainbow leading from the statue of university founder H.E. Pridi to an IDAHOT panel discussion led by LGBTI students. UNAIDS/A. Martin

The Rainbow All Boy Cheerleaders performing at Thammasat University. UNAIDS/H. Nhan

Teachers and students at the NIST International School participating in the #schoolrainbow initiative on 15 May. UNAIDS/H. Nhan

Each #schoolrainbow chalking was different and influenced by its environment and surface, from the strong straight lines at Thammasat University, to the gently curving rainbow around the school track at the NIST International School and the oyster-shaped rainbow that followed the paving at Mathayom Prachaniwet School (pictured). UNAIDS/A. Martin

More than 2000 students at Wat Nuannoradit School stood in front of the #schoolrainbow for morning assembly on the first day back to school on 16 May. They listened intently as the Deputy Head Teacher spoke of tolerance and told them more about School Rainbow's antibullying campaign. UNAIDS/H. Nhan

The #schoolrainbow team worked with each of the schools to follow up each chalking with classroom discussions on bullying and the rights of LGBTI students to a safe education. UNAIDS/H. Nhan

The International Day against Homophobia and Transphobia may be over for another year, but #schoolrainbow will continue to raise awareness of bullying of LGBTI students in Thailand and elsewhere. UNAIDS/A. Martin<