CALP, or Cognitive Academic Language Proficiency, refers to the language skills required for academic success. It involves understanding and using complex language structures, vocabulary, and concepts that are often found in school subjects like math, science, and literature. CALP typically develops over a longer period, usually 5 to 7 years, as students engage in more advanced academic tasks. Unlike BICS (Basic Interpersonal Communicative Skills), which are used in everyday conversation, CALP is essential for reading comprehension, writing essays, and participating in classroom discussions. Mastering CALP helps students perform well in academic settings and is crucial for their overall educational achievement.