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th lights 1 shoes with special heels 2 3 2a Listen and number the inventions [13] in the order you hear them. 2b Listen again and plete the chart below. Invention What is it/are they used for? shoes with special lights __________ the style of the shoes shoes with lights seeing ______________ hot icecream scoop _________ really cold icecream changing in the dark serving 2c Make conversations using the information in 2b. A: What are they used for? B: They’re used for... Paul: Hey Roy, the subject for my school project is “Small inventions that changed the world.” Can you help me think of an invention? Roy: With pleasure! Let me think ... hmm ... I know! The zipper! Paul: The zipper? Is it really such a gre