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Evaluate: According to Raizen & Rossi (1980)  define an evaluation as follows: Must be viewed as a system that
involves many, organizations and many parties.

Need Analysis: defines deficiencies or problems and identifies causes and solutions.

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Importance:
Is important how the needs analysis is going to be evaluated because from this the teacher will be able to have an idea of what the student will need throughout the learning process in order to obtain educational objectives in a satisfactory manner.
Use:
The use is essential for any teacher who needs to analyze and better understand his student and what may or may not influence when acquiring new knowledge.

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•	How to evaluate prior knowledge and background

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•	How to evaluate prior knowledge and background

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It can be evaluated with summative and formative assessments.
Summative Assessment
It is a process in which an outcome is derived through criteria and standards.
-For example, prior knowledge could be assessed by means of tests based on a series of criteria.
Formative assessment
It is considerably more informal in nature compared with summative assessment.
-For example, prior knowledge could be assessed here through different activities such as group discussions, dialogue with teachers, questions, and following up with students through in-class activities.

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The process to evaluate the needs analysis begins by analyzing the class taught, and how to evaluate the knowledge of students depending on many factors, that is where the teacher will apply either summative or formative evaluation, to know what are the shortcomings of students and thus to improve the learning experience of the student and improve the teacher's strategy to impart a new material.

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1. Raizen, S. A., & Rossi, P. H. (1980). Program evaluation in education: When? how? to what ends?. ERIC.
2.Bacquet, J. N. (n.d.). Implications of summative and Formative Assessment in Japan – A review of the current literature. International Journal of Education and Literacy Studies.
3. Amory, A., Gachie, W., Clarke, P., & Yates, S. (1970). Needs analysis, development, and HCI evaluation of a new learning management system. Needs Analysis, Development and HCI Evaluation of a New Learning Management System - Learning & Technology Library (LearnTechLib).