Simple machines like seesaws and hammers require proper safety handling to prevent injury. This lesson teaches children about potential health hazards of improper use through links that discuss dangers of construction sites, preventing accidents with tools, and ending exploitative child labor. The links provide examples of risks and responsible supervision around age-appropriate activities using simple machines.

1. Lesson 26: Improper Handling of
Simple Machines

7. • http://justinthelibrarian.com/2012/04/01/hunger-games-program-for-the-children/
• http://www.123rf.com/photo_7271840_frightened-child-with-yellow-helmet-and-hammer-over-
a-white-background.html
• http://www.ilo.org/oshenc/part-xvi/construction/health-prevention-and-management/
item/518-health-and-safety-hazards-in-the-construction-industry
• http://lewishinechildrencrusader.weebly.com/child-labor.html
• http://lpcrafts.blogspot.com/2012/05/home-made-see-saw.html