&gt; we should rely on more than chance in such settings—for instance, by using smartphones<p>What teaching CPR in mid and high school repetitively every year, even basic stuff in elementary?<p>I have been introduced to sports I knew I would hate, hated and still hate in phys ed, they tryed to teech me spelling, etc... It wouldn&#x27;t add much to the curriculum to add CPR but could have a major impact.