Final answer:
First-grade language arts instruction should allocate approximately 20-30 percent of time to code-based or word work activities to balance literacy development effectively.
Step-by-step explanation:
In first-grade language arts, code-based or word work activities should make up approximately 20-30 percent of instructional time. This allows students to build fundamental skills in decoding and understanding words, which is critical for their reading development. At the same time, it ensures that there is sufficient time for other essential language arts components like reading comprehension, literature exposure, writing, and speaking activities. While there is no one-size-fits-all approach and the exact percentage might vary depending on the curriculum and the needs of the students, maintaining a balanced approach is crucial for fostering a well-rounded literacy education.