The LDC model was developed in 2009 with funding from the Bill and Melinda Gates Foundation to help ensure students nationwide would be college and career ready in light of the Common Core State Standards. Experts from various backgrounds collaborated on the LDC model, which uses literacy tasks, skills, standards, instruction, and assessment results to promote literacy development. The model provides task templates that embed these concepts into 2-4 week modules. While the templates can't be altered, teachers have flexibility in choosing tasks, texts, activities, and assessments. The document focuses on how the LDC writing component could increase 4th grade writing achievement and impact reading achievement through the process.