NEW HORIZONS » Стр.145 (2-3)

2. Look at these pictures. How do you think they relate to the topic of today’s lesson? Name them. At the picture we can see wheel, screw and lever. I think this words are in this topic because we will speak about inventions. 3. Work in groups. Discuss and write one or more examples of simple machines. saw is a wedge; spoon is a lever.