It's not just a valuable lesson for Mrs. Kristina Ulmer's students at Hatboro-Horsham High School. It's a call to action.
It started in 2018 as a way for Ulmer to honor the memory of her sister, Katie Amodei, who passed away in 2014.
The campaign has led to over 350 acts of kindness with more than $7,000 contributed to the cause by various donors.
Watch the video above to see some of the ways her students turn $20 into acts of kindness.
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