ဤအရာ Publication Issue သင်၏ဘာသာစကားတွင်မရှိပါ။, တွင်..ကြည့်ပါ။: English (en),
သို့မဟုတ် ဂူဂယ်ဘာသာပြန်ကိုအသုံးပြုပါ။:  

After seeing several examples of Appropriate Technology as they toured ECHO-North America, students will play a card game to review the technologies, plot the location of each one on a farm map, and then design their own invention to assist small-scale framers.