Um, which summary?
If you're talking about this;
Read the summary of the section of "The Beginnings of the Maasai," where the volcanic eruption and its results are described.
As a result of a volcanic eruption, Enkai and the cattle were thrown into the sky. Enkai wanted to save his cattle. He grew a tree that bridged the sky and the earth. The cattle walked down the tree to Neiterkob. Neiterkob and the Maasai tribe took over caring for the cattle.
Why does the summary need to be revised?
Then the answer is:
The summary lacks transitions that connect ideas
Stephen Blackpool is a worker that works in Josiah Bounderby’s factory. Because of that, they have a contrast, Blackpool is a poor worker that fights to recover his name after he is falsely accused of robbery. On the other hand, Bounderby is the owner of the factory, he lives for wealth and self-interest. These two characters show the relationship between rich and poor and represent the society we live in. And the fight between factory owners and workers unions.
Answer:
The cat hid his mouse toy under the bed would be correct. In this sentence the comma is not needed.
Miss Sullivan did not believe in formal class-room teaching. She introduced the play-way method into her teaching making Helen study outdoors. She made Helen actually feel the nature and its creations. She explained Helen all about earth, poles, mountains, valleys, and drifts in such a way that she could actually understand and feel the things around her.
This manner of teaching helped Helen to learn things faster. It became much easier for her to imagine, understand and remember things.
Miss Sullivans had taken Helen by the hand across the fields where men were preparing the earth for the seed, to the banks of the Tennessee River. Sitting on the warm grass, she began the first lessons for Helen in the beneficence of nature. Helen learned how the sun and rain make the ground give life to trees that are not only pleasant to the sight but also good for food, how birds build their nest and thrive from land to land. Also, how every creature finds food and shelter. As Helen's knowledge of these things grew, she felt more and more the delight of the world she lived in. Long before she learned to do a sum in arithmetic or describe the shape of the earth, Miss Sullivan had taught her to find the beauty in the fragrant woods, in every blade of grass and in the curves and dimples of her baby sister's hand. She linked her earliest thoughts with nature and made her attuned to the beauty that abounds in the world.
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