This school-based cluster randomized trial (c-RCT) compares the intervention arm with control arm. The intervention arm receives behavior change communication (BCC) on essential nutrition actions. The control arm receives only routine health and nutrition services. From a Meskan District, 10 clusters were selected and randomly assigned to the two study arms by randomization. The study participants will be children 10-15 years of age. Total sample size was 408 study participants. Anthropometric measurements, academic performance, nutritional knowledge, and dietary diversity will be measured at both baseline and end line. A behavior change and key poster message was providing based on essential nutrition actions for science teachers and students using class sessions and school visits. A binary logistic regression analysis will be used to identify independent predictors of nutritional status and academic performance of schoolchildren after controlling for confounding variables. The effect of BCC on micronutrient will be determined using generalized estimating equations (GEE) and or linear mixed effects model.