bubble sheet scanner
[ˈbʌbəl ʃiːt ˈskænər]
nounpl: bubble sheet scanners
leitor de gabarito
1. An electronic device that automatically reads and scores answer sheets where responses are marked by filling in circles or bubbles
The teacher used a bubble sheet scanner to grade the multiple-choice exam in seconds.
A professora usou um leitor de gabarito para corrigir a prova de múltipla escolha em segundos.
2. Optical character recognition (OCR) technology specifically designed to detect pencil or pen marks in predetermined bubble positions on standardized test answer sheets
The bubble sheet scanner detected that Student #45 had filled in two answers for question 7.
O leitor de gabarito detectou que o Aluno #45 tinha marcado duas respostas para a questão 7.
Bubble sheet scanners are ubiquitous in American education systems for standardized testing (SAT, ACT, AP exams) and classroom assessments. In Brazil, while the technology exists and is used in some standardized tests and universities, it is less widespread than in the USA. The term 'Scantron' (a major brand) is sometimes used generically in English-speaking countries, similar to how 'Xerox' is used for photocopying.
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