The diagram below shows the development of cutting tools in the Stone Age.
The diagram provides a comparative overview of cutting tools that were improved in the stone age; precisely back to 1.4 million years ago and 0.8 million years ago.
In general, there is only one item from different perspectives, which has 5 cm in length for both categories. The device in 1.4 million years ago has more softened structure compared to that in 0.8 million years ago. Substantially, the tool has got a wider flattened surface with more tough edges in the later periods. Particularly in vertical view, the item is observed to be significantly slim when it comes to design in a period of 0.8 million years ago. Back to 1.4 million years ago, the cutting device has less pointed apex than that in the 0.8 million years later.
To sum up, there is an obvious alternation in the design of the cutting tool during the provided periods albeit the length is the same. These changes are the width of the surface, the pointed apex, and more or less edged in overall appearance.
Transition Words or Phrases used:
if, so, in general, more or less, to sum up
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 7.0 7.0 100% => OK
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 3.0 6.8 44% => More conjunction wanted.
Relative clauses : 5.0 3.15609756098 158% => OK
Pronoun: 5.0 5.60731707317 89% => OK
Preposition: 25.0 33.7804878049 74% => OK
Nominalization: 2.0 3.97073170732 50% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 818.0 965.302439024 85% => OK
No of words: 173.0 196.424390244 88% => More content wanted.
Chars per words: 4.72832369942 4.92477711251 96% => OK
Fourth root words length: 3.62669911048 3.73543355544 97% => OK
Word Length SD: 2.5650154685 2.65546596893 97% => OK
Unique words: 96.0 106.607317073 90% => More unique words wanted.
Unique words percentage: 0.554913294798 0.547539520022 101% => OK
syllable_count: 251.1 283.868780488 88% => OK
avg_syllables_per_word: 1.5 1.45097560976 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 1.53170731707 65% => OK
Article: 6.0 4.33902439024 138% => OK
Subordination: 0.0 1.07073170732 0% => More adverbial clause wanted.
Conjunction: 1.0 0.482926829268 207% => Less conjunction wanted as sentence beginning.
Preposition: 2.0 3.36585365854 59% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 8.0 8.94146341463 89% => OK
Sentence length: 21.0 22.4926829268 93% => OK
Sentence length SD: 20.4935203174 43.030603864 48% => The essay contains lots of sentences with the similar length. More sentence varieties wanted.
Chars per sentence: 102.25 112.824112599 91% => OK
Words per sentence: 21.625 22.9334400587 94% => OK
Discourse Markers: 5.375 5.23603664747 103% => OK
Paragraphs: 3.0 3.83414634146 78% => More paragraphs wanted.
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 1.0 3.70975609756 27% => More positive sentences wanted.
Sentences with negative sentiment : 3.0 1.13902439024 263% => Less negative sentences wanted.
Sentences with neutral sentiment: 4.0 4.09268292683 98% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.121404887077 0.215688989381 56% => OK
Sentence topic coherence: 0.0547363299022 0.103423049105 53% => OK
Sentence topic coherence SD: 0.0759112052199 0.0843802449381 90% => OK
Paragraph topic coherence: 0.114814435772 0.15604864568 74% => OK
Paragraph topic coherence SD: 0.0847108155643 0.0819641961636 103% => OK
Essay readability:
automated_readability_index: 11.7 13.2329268293 88% => Automated_readability_index is low.
flesch_reading_ease: 58.62 61.2550243902 96% => OK
smog_index: 8.8 6.51609756098 135% => OK
flesch_kincaid_grade: 10.3 10.3012195122 100% => OK
coleman_liau_index: 10.15 11.4140731707 89% => OK
dale_chall_readability_score: 8.6 8.06136585366 107% => OK
difficult_words: 43.0 40.7170731707 106% => OK
linsear_write_formula: 11.5 11.4329268293 101% => OK
gunning_fog: 10.4 10.9970731707 95% => OK
text_standard: 12.0 11.0658536585 108% => OK
What are above readability scores?
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Rates: 67.4157303371 out of 100
Scores by essay e-grader: 6.0 Out of 9
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.