Students learn to distinguish between normal heart sounds (the "lub-dub" of valves closing) and abnormal murmurs, such as those caused by mitral valve regurgitation. Similarly, they identify abnormal breath sounds like crackles or wheezing, which may indicate underlying respiratory issues.
: There is no difference between males and females in the number of colds developed. Calculation Activity 2.1 3 Student Response Sheet Pltw Answers
This version focuses on to determine if experimental results are significant. Students learn to distinguish between normal heart sounds