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: 747.0 578.828451883 129% => OK
No of words: 183.0 151.265690377 121% => OK
Chars per words: 4.08196721311 3.82278263415 107% => OK
Fourth root words length: 3.67800887145 3.50058242952 105% => OK
Word Length SD: 1.9610559381 1.80425224433 109% => OK
Unique words: 100.0 92.4686192469 108% => OK
Unique words percentage: 0.546448087432 0.61298525976 89% => More unique words wanted or less content wanted.
Syllable count: 237.6 182.283891213 130% => OK
Avg_syllables_per_word: 1.3 1.20543933054 108% => OK

Performance on coherence:
Topic speech coherence ratio: 0.0748559023879 0.0839705835288 89% => OK

Acoustic performance on paragraphs:
How many acoustic paragraphs: 9.0 4.47071129707 201% => Need less acoustic paragraphs.
Average paragraph length: 20.3333333333 65.8948926009 31% => The average paragraph length is low.
STD paragraph length: 14.9369043349 19.7758100068 76% => OK
Average paragraph duration: 6.48555555556 25.5208953607 25% => The speaking content is not well organized.
STD paragraph duration: 4.70357337236 7.49434385956 63% => OK

Acoustic performance on sentences:
How many acoustic sentences: 26.0 42.9832635983 60% => OK
Average acoustic sentence length: 7.03846153846 3.78147595546 186% => OK
STD acoustic sentence length: 5.74108519111 2.94285465224 195% => OK
Average acoustic sentences duration: 2.12230769231 1.39386743896 152% => OK
STD acoustic sentences duration: 1.51955030719 0.967747756167 157% => OK

Acoustic performance on acoustic silence:(An acoustic silence means a little pause between two or more words)
How many acoustic silence: 19.0 40.4456066946 47% => OK
Total acoustic silence duration: 3.33 7.59280334728 44% => OK
Average acoustic silence duration: 0.175263157895 0.19053887516 92% => OK
STD acoustic silence duration: 0.165700059431 0.157467062838 105% => OK

Acoustic performance on acoustic words:
Total word duration: 49.48 46.3453556485 107% => OK
Average word duration: 0.270382513661 0.308780311121 88% => OK
STD word duration: 0.16967782432 0.201157623399 84% => OK

Disfluencies: like hesitations, or 'ehn' or taking a long time to pronounce a word:
How many disfluencies: 4.0 8.09623430962 49% => OK
Total_disfluencies_duration: 3.41 6.56692468619 52% => OK
Total acoustic noise duration: 3.45 3.53066945607 98% => OK

Acoustic rates:
Total speech duration: 58.37 59.5455230126 98% => OK
Compare to expected duration: 0.972833333333 0.992425383543 98% => OK
Rate of silence: 0.32550967963 0.681803438845 48% => OK
Rate of speech: 3.13517217749 2.53813033465 124% => OK
Rate of speech by unique words: 1.71320884016 1.55221717717 110% => OK
Rate of word duration by unique words: 2.02101859337 1.99939622689 101% => OK
Average articulation rates: 0.459405120219 0.309613076454 148% => OK

---------------------

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