This PowerPoint presentation goes with the econ ed link teaching how productivity increases with knowledge, technology and specialization. Download the activity that goes with the PowerPoint I have created.
Enjoy this. The students love this activity and they get a full understanding of how productivity increases. I changed from the paperclips to the yarn - I found it to be easier and does not waste as much materials. I have included built in automatic timers that worked great on my Keynote and should do the same as a PowerPoint. If you need the Keynote file instead, purchase and email me and I will send it to you.