Represent and use numbers in equivalent forms (e.g., integers, fractions, decimals, percents, exponents, scientific notation, square roots)

Transcription

1 LESSON STRINGER LAYOUT Program Area: Carpentry Unit: Stair Construction Task#: CA-2202 Revision Date: 11/1/1999 Hours: 15 Description: Lay out, cut install stair stringer Exit Outcome/Terminal Performance Objective: Given a structure with two floors an opening in the upper floor, the student will lay out, cut, install stair stringers to an accuracy of +/- 1/8" overall. Associated Academic Stards: MATH A B Represent use numbers in equivalent forms (e.g., integers, fractions, decimals, percents, exponents, scientific notation, square roots) Add, subtract, multiply divide different kinds forms of rational numbers including integers,

2 decimal fractions, percents proper improper fractions SCIENCE A Describe the similarities differences that characterize diverse living things. 1) Describe how the structures of living things help them function in unique ways. 2) Identify plants animals through the use of a dichotomous key. 3) Explain adaptations among organisms that live in a particular environment A Discern concepts about the structure properties of matter. 1) Know use

3 characteristic physical properties (e.g., density, solubility, crystal shape, freezing point) to distinguish materials. 2) Know that matter is made of smaler units called atoms A Discern concepts about the structure properties of matter. 1) Know use characteristic physical properties (e.g., density, solubility, crystal shape, freezing point) to distinguish materials. 2) Know that matter is made of smaler units called atoms C Explain physical technologies of structural design, analysis engineering, personnel relations, financial

4 affairs, structural production, marketing, research design. 1) Use knowledge of material effectiveness to solve proglems. 2) Differentiate among the different applications (e.g.,, energy related, information building. 3) Explain basic material processes that manufactured objects undergo during production. 4) Evaluate a activity by specifying task analyses necessary resources. 5) Explain the relationships among the basic resources needed in the production

5 process for a manufactured object. 6) Explain the difference between design engineering production engineering processes. 7) Analyze manufacturing steps that affect waste pollutants. 8) Explain technologies of propelling, structuring, suspending, guiding, controlling supporting. 9) Identify explain the workings of several mechanical power systems. 10) Model explain examples of vehicular propulsion, control, guidance, structure suspension systems. 11) Explain the

6 limitations of l, marine, air space systems C Apply physical technologies of structural design, analysis engineering, personnel relations, financial affairs, structural production, marketing, research design. 1) Classify common materials by their characteristics composition. 2) Compare contrast systems that depend on each other in order to complete a project. 3) Evaluate material failure common to

7 applications. Demonstrate knowledge of various systems by building or interpreting models. 5) Select apply the necessary resources to successfully conduct a manufacturing enterprise. 6) Apply concepts of design engineering production engineering in the organization application of a manufacturing activity. 7) Demonstrate an understing of manufacturing by redesigning an enterprise to improve productivity or reduce or eliminate waste /or pollution. 8) Apply

8 technologies of propelling, structuring, suspending, guiding, controlling supporting. 9) Appply the concepts of vehicular propulsion, guidance, control, suspension structural systems while designing producing systems. 10) Identify jobs in the community. 1) Analyze, test assess the impacts that systems have on a community. LANGUAGE ARTS (Under Development) Academic Stard Assessment: CA2202.pdf Occupational Performance Assessment:

9 Performance Criteria Correct total rise determined Workable unit rise & unit run calculated for stairs Headroom is maintained to at least 6"-6" Layout is correct for unit rise & unit run calculated Dropping of stringer is correct for tread thickness & allowance made for finish floor at bottom of stairway Cuts are accurate & stringers match up Appropriate adjustments made at top for attachment method Stair stringers are level across stairway in tread cuts Stringers spaced off wall for finish materials clearance Stringers firmly attached at top bottom All stair rises are equal after finish treads are installed Needs Practice Satisfactory You can this page! INTRO 1 PERFECT STAIR 7/10 2 PARTS TREAD RISER STRINGER 3 LAYOUT WITH FRAMING SQ BODY DIVIDE BY 7 ROUND OFF EX 7 10 _ = 94 _ / 7= USE _ /13=7 _ = 13 RISERS@ 7 _ LAYOUT 1 FEWER RISER THAN TREAD SUBTRACT1 FROM 13=12 RISERS USE FORMULA SUM OF TOTAL IS BETWEEN 17& _ =10 _ IS TREAD CUT OFF FIRST RISER THICKNESS OF TREAD CUT STRINGERS FROM SAME PATTERN CONCLUSION REVIEW TOOLS 2X12 STAIR GAGUE FRAMING SQUARE INSTRUCTOR Jerry Hermann