Which of the following is primarily taught using a seal mat?

A seal mat is primarily used for teaching log rolls because it provides a safe and stable surface for learners to practice this skill in a horizontal position. The mat simulates the water surface, allowing swimmers to learn the mechanics of rolling over while maintaining buoyancy and balance. This practice helps students become familiar with body positioning in the water while reducing the risk of injury during the learning process.

In contrast, water conditioning focuses on building comfort and basic skills in the water, which may involve various activities that do not specifically require a seal mat. Kicking drills emphasize leg movement and propulsion but are often practiced while holding onto the pool edge or using kickboards. Submersions involve diving underwater, which can be taught in shallow water without the need for a seal mat. Thus, the use of the seal mat is specifically beneficial for log rolls, making it the correct choice in this context.