Research indicates that teacher efficacy influences student achievement and is situation specific. With the Next Generation Science Standards calling for the incorporation of engineering practices into K-12 classrooms, it is important to identify teachers' engineering teaching efficacy. A study of K-5 teachers' engineering self-efficacy and engineering teaching efficacy revealed that that they have low engineering self-efficacy and low teacher efficacy related to engineering pedagogical content knowledge. Additionally, significant differences existed in self-efficacy levels based on gender, ethnicity, Title I school status, and grade level taught.