It is considered an instrument by which the teacher can achieve a certain coincidence between the needs and the aims of the learners.

The concept you're referring to is often associated with educational strategies or teaching methods. In teaching, an instrument that helps bridge the gap between learners' needs and educational objectives can take various forms. This could include assessment tools, personalized learning plans, or curriculum guides that are designed to align with the diverse learning styles and requirements of students.

These instruments aim to cater to individual differences among learners by identifying their specific needs and adapting educational goals accordingly. For instance, formative assessments can provide valuable feedback to both educators and students on areas requiring improvement, thus ensuring that teaching strategies are effective and aligned with student objectives. Additionally, differentiated instruction is another approach that emphasizes adjusting teaching methods to accommodate varying abilities and learning preferences within the classroom.

Overall, effective teaching instruments not only facilitate the achievement of curricular aims but also enhance student engagement and outcomes by addressing their unique requirements.