PCC/ CCOG / MCH

Course Content and Outcome Guide for MCH 130

Date:
17-NOV-2011
Posted by:
Curriculum Office
Course Number:
MCH 130
Course Title:
Machine Shop Trigonometry
Credit Hours:
2.5
Lecture hours:
0
Lecture/Lab hours:
50
Lab hours:
0
Special Fee:
$15

Course Description

Introduces the rules, methods and procedures for using trigonometry formulas that deal with both the sides and the angles of the right triangle and oblique triangle to solve for the unknown parts. Prerequisite: MCH 100. Audit available.

Addendum to Course Description

 

Intended Outcomes for the course

Upon successful completion of this course students will be able to:
1. Use sine, cosine, and tangent and functions to determine coordinates of a part to be machined.
2. Communicate technical information to coworkers, clients, and/or engineers.

Course Activities and Design

 MCH 130 will be presented by means of audio-visual presentations, demonstrations, lab experiences, and research activities. The course activities and design emphasize the development of skills and knowledge outcomes prescribed by established industry standards. The identified outcomes will be achieved by means of individual and team activities.  

Outcome Assessment Strategies

 
POLICY - Student performance measurements are based on established industry standards. The various areas of study during the course will be evaluated by a variety of activities. Typical of those activities are the following;
1. READING ASSIGNMENTS - Information sheets, textbooks, journal articles and the learning resource center are potential sources of information that the student will reference as directed in the modules identified in the introduction. 
2. PRACTICE - Completion of tasks and projects identified in the reading assignments, information sheets, journal articles and textbooks. Students are required to complete practice activities with 100% competency.
3. SELF-ASSESSMENT - Checking and evaluating the students understanding and knowledge gained through the reading assignments and practices typically done through a practice evaluation.
4. LAB ACTIVITIES - Participation in structured laboratory exercises with the emphasis on developing skills or increasing expertise in the areas of study identified in the module packets.
5. FINAL ASSESSMENT - An assessment in the form of a written exam and/or practical application that addresses the subject areas identified in the module packets. Students are required to complete final assessment activities with 85% competency.
TEXT:  
Mathematics for the Machine Technology, by Robert D. Smith
 
 
 

Course Content (Themes, Concepts, Issues and Skills)

Machine Shop Math / Trigonometry consists of the following modules:
Angles - Other than linear measurement, the most common measurement with which the machinists work is the measurement of angles. Basically angular measurement is finding the size of angles.
Triangles - A plan figure is a flat, two-dimensional figure. A triangle is a closed plane figure that has three straight sides. The triangle also has three interior angles whose sum is 1800. Triangles are divided into two categories - right triangles and oblique triangles. A right triangle has a right angle as an interior angle. An oblique triangle does not have a right angle.
Trigonometry - Most of the trigonometric relationships used by machinists are based on the right triangle. The right triangle formulas we used previously dealt with the length of the sides only. Trigonometry formulas deal with both the sides and the angles.

Related Instruction

Computation
Hours: 65

Outcome:

Use sine, cosine, and tangent and functions to determine coordinates of a part to be machined.
 

Activities:

Content (Activities, Skills, Concepts, etc.): provide details or specifics

Through direct instruction students practice Right triangle trig using Pythagorean theorem, Sin, Cosine, and Tangent functions. Some obtuse and acute triangle trig using the law of sins.
Students are given blue prints of machine parts that require the use of trigonometry to determine bolt hole patterns and how to locate x and y coordinates.

Communication
Hours: 10

Outcomes:

ยท Students will be able to communicate technical information to co-workers, clients, and or engineers
 

Activities:

Content (Activities, Skills, Concepts, etc.): provide details or specifics

Technical communication skills are practiced as students need to communicate questions related to higher level math.
Students learn to ask specific questions related to their current problem by defining the case and what they need to complete the issue at hand.