இந்த Publication Issue உங்கள் மொழியில் இல்லை, இதில் பார்க்கவும்: English (en),
அல்லது Google Translate பயன்படுத்த:  

After seeing several examples of Appropriate Technology as they toured the Global Farm, 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.