The diagram below shows the development of the cutting tool in the Stone Age. Summarise the information by selecting and reporting the main features and make comparisons where relevant.
The diagram compares the evolvement of the cutting instrument during the period of the Stone Age from 1.4 million years ago to 0.8 million years ago.
It is clear that
the instrument was upgraded in not only size but also
shape in order to become more effective in use.
As can be seen, the front and side views of tool A present that it was quite primitive with a rough surface and blunt edges, the oval shape of it was similar to a natural stone due to
lack of crafting as well,all in comparison with the more enhanced tool B.
Regarding the later improvement, tool B was developed so that it was easier to use. It was formed into the shape of a spear with a sharper tip in order to cut things effectively. Although
the length of the latter remained the same at 5cm, the width was enlarged significantly. Moreover
, the exterior was improved to be smoother.Submitted by danphamngocha on
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Vocabulary: Use several vocabularies to present the data in the second paragraph.
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