This learning resource explores the design challenge of creating a secure cattle gate latch. It engages students in understanding the requirements for a functional latch that is easy for humans to operate but resistant to disruption by cattle. The challenge emphasizes the role of levers in engineering design and introduces the concept of constraints, which are critical in the design process. Students will consider factors such as height, weight load from livestock, and the durability of materials suitable for outdoor conditions, fostering critical thinking and problem-solving skills in a real-world context.