¶ … movie Stand and Deliver (Menendez & Musca, 1988), which is based on the true story of Jamie Escalante, an individual who overcame ethnic, cultural, and socioeconomic issues to become a highly successful mathematics teacher. Discuss the beliefs he held and the strategies he employed in his classroom that contributed to high achievement levels in his students.
The final report of the National Mathematics Advisory Panel (2008) presents a three-pronged argument for an effective math curricula: 1) It must foster the successful mathematical performance of students in algebra and beyond; 2) it must be taught by experienced teachers of mathematics who instructional strategies that are research-based; and, 3) the instruction of the math curriculum must accomplish the "mutually reinforcing benefits of conceptual understanding, procedural fluency, and automatic recall of facts" (National Mathematics Advisory Panel, 2008, p. xiv). Jamie Escalante began teaching before this report was released, but he knew from experience -- and instinct -- that students who do not achieve mastery of foundational concepts of mathematics will face unforgiving -- perhaps harsh -- consequences in their lives (Won, 2010).
Frontrunner Excellence. A report published in 2006 by the National Council of Teachers of Mathematics made recommendations for math curriculum that are currently being implemented in a majority of U.S. states as the Common Core State Standards. One recommendation has been particularly influential and is pivotal to curriculum, instruction, and assessment aligned with the Common Core: Math curriculum and instruction should cover fewer topics at greater depth. Best practices in mathematics instruction have established the need to ensure students have sufficient time to learn concepts deeply so that they can build on the learning in subsequent grades and so that redundancy does not need to be built into the grade level curriculum and instruction. Rather, math curricula are designed to ensure continuity across the grade-level instruction, with each deep instruction provided at each grade. This successful approach has been adopted by a majority of nations where students are top-performers in mathematics.
An important outcome of these comprehensive reports on mathematics instruction in the U.S. is the recommendation that the issue of identifying which of two primary methods of math instruction is superior be laid to rest. For decades, there has been an ongoing debate about math instruction that is teacher-directed vs. student-centered. The fundamental difference between the two approaches is based on how much freedom students have to explore mathematical concepts (Barley, et al., 2002). In the traditional instructional approach to teaching mathematics, students are shown how to solve problems, complete multiple drill exercises, and take tests that don't vary from the formulaic approach to problem solving. The reports conclude that both approaches have merit, and that, according to the chairman of the panel, Dr. Larry Faulkner, "There is no basis in research for favoring teacher-based or student-centered instruction. People may retain their strongly held philosophical inclinations, but the research does not show that either is better than the other."
Escalante understood the relation of motivation to success -- for his students and for the teachers in the math department (Marzell, 2012). He was clearly an outlier with respect to his peers, and was prone to making statements at departmental meetings such as, "Students will rise to the level of expectations you are holding them." Comments like this did not endear Escalante to the other teachers in the school, nor did it help when he precisely cut to the core of the situation. When asked by the school principal what the school needs to be successful and accomplish their accreditation audit, Escalante said plainly that, "All we need is ganas" which is Spanish for desire and drive.
Research-based Instruction. Several meta-analyses of instructional strategies have led researchers to put forth four approaches that support solid performance in mathematics (Swanson, 2009; Wietzel, et al., 2003). The promising approaches include: 1) Systematic and explicit instruction; 2) Self-instruction; 3) Peer tutoring; and 4) Visual representation. Of these, Jaime Escalante appeared to favor and use all by the peer tutoring, which makes sense considering the lack of opportunity the students in his classes would have had to share in this manner. Escalante's students lived in barrios and studied in schools that created disadvantage rather than support.
Observing the mathematics instruction given by the character Jamie Escalante in the film Stand and Deliver, it is apparent that he employed a number of the strategies that have become best practice (Steedly, et al., 2012). Escalante provided systematic and explicit instruction through his step-by-step approach that took his students methodically through a specific instructional sequence. Escalante used...
Being able to "crunch the numbers" is an essential part of the manager's role. Too often managers feel uncomfortable working with numbers because of their limited mathematical background. This reduces their usefulness, however. Strong managers are not intimidated by the numbers, but rather view them as an essential component of the job. Therefore, part of the process of studying business management is to build the set of tools that
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The semi-minor and semi-major axis are easily determined, and can then be subbed into the standard equation for an ellipse. Taking the square root of y will result in a plus/minus, and discarding the minus erases the lower half of the ellipse. The long axis extends horizontally, and the short axis extends vertically. The x and y axis bisects the ellipse already, so both a and B. are available:
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