Correct Response: C. In this movement activity, students gain firsthand experience in estimating and feeling for their heart rate (via a pulse check) before and after they engage in activity of varied intensity levels: low (walking), moderate (jogging), and moderate-to-vigorous (running). Through this activity, students become familiar with some basic cardiorespiratory principles (e.g., physical activity increases heart rate, different activities have different intensity levels, individuals have control over intensity levels). Young elementary students are not yet developmentally ready to learn techniques for calculating respiration rates (A). The scenario described does not include anaerobic activity, and at the lower elementary level, promoting the ability to distinguish between aerobic and anaerobic activity (B) or encouraging students to improve their endurance (D) is not developmentally appropriate.
