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How does a police radar gun measure the speed of a car?

Answer in paragraphs(3-5) and needs to related to Univeristy Physics. Can used related equations or theories in physics.
One or two sources needs to be used and cited.
One related picture is preferred.
Needs to be detailed and understandable

Professional Development of Teachers

Educational psychology seeks to inform and guide various areas of education practice. It plays a vital role in student learning and can help
influence the professional development of teachers as well. Through professional development, teachers can keep abreast of current
educational research. Professional development can be incorporated into the day-to-day activities of teachers with the ultimate goals of
enhancing teaching practices and improving student learning.
For this Discussion, review this week’s media and other Learning Resources. Think about how educational psychology can contribute to the professional development of teachers.
With these thoughts in mind:
Post by Day 3 two examples of how educational psychology informs teaching practices. Then explain three ways educational psychology
informs and guides the professional development of teachers. Be specific and use the Learning Resources and current literature to support your response.
Be sure to support your postings and responses with specific references to the readings below.
Readings
Article: Organisation for Economic Co-operation and Development. (2011). Building a high-quality teaching profession: Lessons from around the world. Retrieved from http://www.oecd.org/education/school/programmeforinternationalstudentassessmentpisa/47506177.pdf
Article: Polly, D., & Hannafin, M. J. (2011). Examining how learner-centered professional development influences teachers’ espoused and
enacted practices. The Journal of Educational Research, 104(2), 120–130.
Copyright 2011 Taylor & Francis Informa UK Ltd. Journals. Used with permission from Heldref Publications via the Copyright Clearance Center.
Article: Shulman, L. S. (2000). Teacher development: Roles of domain expertise and pedagogical knowledge. Journal of Applied Developmental Psychology, 21(1), 129–135.
Retrieved from the Walden Library using the ScienceDirect database.
Article: Wichadee, S. (2011). Professional development: A path to success for EFL teachers. Contemporary Issues in Education Research, 4(5), 13–21.
Retrieved from the Walden Library using the Education Research Complete database.

Classroom Mangement and Educational Psychology

Fifty percent of teachers report spending more time managing classroom behavior than
educating (Beaman and Wheldall, 1997; Beaman, Wheldall, and Kemp, 2010). The challenge for
teachers is to manage the plethora of variables including, but not limited to, class size, ethnicity
issues, student behavior, language differences, and even student medications. Educational
psychology provides teachers with variant classroom management strategies and techniques to
create an effective environment for teaching and for learning.
For this Discussion, review this week’s Learning Resources and consider the variables that can
promote or inhibit classroom management.

With these thoughts in mind:
Post by Day 3 an explanation of at least three factors related to an effective classroom learning
environment. Then explain at least one factor that can work against an effective environment.
Finally, analyze one way educational psychology might inform the learning environment. Be
specific and support your answers with the Learning Resources and current literature.
Be sure to support your postings and responses with specific references to the readings below.
Readings
Article: Brophy, J. (1998). Classroom management as socializing students into clearly articulated
roles. Journal of Classroom Interaction, 33(1), 41–45.
Retrieved from the Walden Library using the Education Research Complete database.
Article: Center for Mental Health in Schools at UCLA. (2011). Implementing response to
interventions in context. Retrieved from http://smhp.psych.ucla.edu/pdfdocs/implementingrti.pdf
Article: Ducharme, J. M., & Shecter, C. (2011). Bridging the gap between clinical and classroom
intervention: Keystone approaches for students with challenging behavior. School Psychology Review, 40(2), 257–274.
Retrieved from the Walden Library using the Education Research Complete database.
Article: Marks, D. B. (2010). Preservice teachers’ perceptions of classroom management
instruction: Theory to practice. National Teacher Education Journal, 3(2), 179–201.
Retrieved from the Walden Library using the Education Research Complete database.
Article: Marzano, R. J., & Marzano, J. S. (2003). The key to classroom management. Educational Leadership, 61(1), 6–13.
Retrieved from the Walden Library using the Educational Research Complete database.
Article: Rosas, C., & West, M. (2009). Teachers beliefs about classroom management: Preservice and inservice teachers’ beliefs about classroom management. International Journal of
Applied Educational Studies, 5(1), 54–61.
Retrieved from the Walden Library using the Education Research Complete database.