Using points and examples from the talk, explain the two possible ways early humans discovered how to use fire to release copper from solid rock.

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on vocabulary words:
No of characters: 751.0 578.828451883 130% => OK
No of words: 207.0 151.265690377 137% => OK
Chars per words: 3.62801932367 3.82278263415 95% => OK
Fourth root words length: 3.79308509922 3.50058242952 108% => OK
Word Length SD: 1.75883894499 1.80425224433 97% => OK
Unique words: 109.0 92.4686192469 118% => OK
Unique words percentage: 0.526570048309 0.61298525976 86% => More unique words wanted or less content wanted.
Syllable count: 244.8 182.283891213 134% => OK
Avg_syllables_per_word: 1.2 1.20543933054 100% => OK

Performance on coherence:
Topic speech coherence ratio: 0.07213288333 0.0839705835288 86% => OK

Acoustic performance on paragraphs:
How many acoustic paragraphs: 5.0 4.47071129707 112% => OK
Average paragraph length: 41.4 65.8948926009 63% => OK
STD paragraph length: 25.3345613737 19.7758100068 128% => OK
Average paragraph duration: 12.44 25.5208953607 49% => OK
STD paragraph duration: 7.13341713346 7.49434385956 95% => OK

Acoustic performance on sentences:
How many acoustic sentences: 29.0 42.9832635983 67% => OK
Average acoustic sentence length: 7.13793103448 3.78147595546 189% => OK
STD acoustic sentence length: 4.4468054239 2.94285465224 151% => OK
Average acoustic sentences duration: 2.07344827586 1.39386743896 149% => OK
STD acoustic sentences duration: 1.03950344864 0.967747756167 107% => OK

Acoustic performance on acoustic silence:(An acoustic silence means a little pause between two or more words)
How many acoustic silence: 27.0 40.4456066946 67% => OK
Total acoustic silence duration: 4.66 7.59280334728 61% => OK
Average acoustic silence duration: 0.172592592593 0.19053887516 91% => OK
STD acoustic silence duration: 0.149458097499 0.157467062838 95% => OK

Acoustic performance on acoustic words:
Total word duration: 53.06 46.3453556485 114% => OK
Average word duration: 0.256328502415 0.308780311121 83% => OK
STD word duration: 0.152578635176 0.201157623399 76% => OK

Disfluencies: like hesitations, or 'ehn' or taking a long time to pronounce a word:
How many disfluencies: 8.0 8.09623430962 99% => OK
Total_disfluencies_duration: 5.7 6.56692468619 87% => OK
Total acoustic noise duration: 2.09 3.53066945607 59% => OK

Acoustic rates:
Total speech duration: 62.2 59.5455230126 104% => Need to finish the speech on time.
Compare to expected duration: 1.03666666667 0.992425383543 104% => OK
Rate of silence: 0.434083601286 0.681803438845 64% => OK
Rate of speech: 3.32797427653 2.53813033465 131% => OK
Rate of speech by unique words: 1.75241157556 1.55221717717 113% => OK
Rate of word duration by unique words: 2.05427817565 1.99939622689 103% => OK
Average articulation rates: 0.383584285024 0.309613076454 124% => OK

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Rates: 66.6666666667 out of 100
Scores by speech e-grader: 20.0 Out of 30
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Note: the speech e-grader does NOT examine the meaning of words and ideas.