Mexicanos Primero chapter Sinaloa reported that at least one school in the state suspended classes for 57% of the 2025-2026 school cycle, equivalent to 105 of 185 days. ^[1] Mexicanos Primero Sinaloa launched the 'Días Sin Clases' platform to register interruptions of in-person classes in Sinaloa caused by violence, natural phenomena, and infrastructure problems. ^[2] Nuria González, director of Mexicanos Primero Sinaloa, stated that 39.5% of interruptions were due to violence or insecurity, while 26.3% were caused by a lack of infrastructure and basic services. ^[3] The organization documented 63 days of interruptions for operational or institutional reasons, 57 days for violence or insecurity, and nine days for natural phenomena. ^[4] During the 2025-2026 school cycle, the platform documented that interruptions occurred in at least one school on approximately 57% of the 185 official days in the calendar. ^[5] Nuria González Elizalde, general director of Mexicanos Primero Sinaloa, explained that the tool addresses a lack of sufficient information to dimension the phenomenon of school interruptions. ^[6] Mexicanos Primero announced it will evaluate the outgoing governments of the 17 entities holding elections in 2027 to determine how they guaranteed the right to learn. ^[7]