ANNEXURE A by fjhuangjun

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									ANNEXURE C

CRITERIA FOR THE ASSESSMENT OF GRADE 12 SUBJECTS WITH A
PRACTICAL COMPONENT


PLEASE NOTE: Refer to all portfolio guidelines for rubrics in all subjects with a
practical component.

General criteria:

      Processes used in the execution of tasks
      Quality of workmanship
      Knowledge of techniques, equipment and materials
      Skills in using equipment, materials and techniques
      Attitudes – safety regulations, workshop practice and habits, organizational
       ability
      Degree of difficulty
      Functionality
      Planning
      Accuracy
      Correctness of calculations
      Neatness including drawings

   Educators are encouraged to motivate learners to adopt
   the problem solving approach to practical work (i.e. the
   technological process of solving problems). The use of the technological process is
   encouraged and the process followed by the learner must be documented and
   presented with the solution. This process is to be assessed and included in the
   Practical Examination mark.

1. TECHNIKA: CIVIL

      Layout of buildings on site
      Standard procedure of determining quantities of building materials
      Set up of Slump Test
      Soil tests
      Drawing of sections and views of dwellings
      Layout of frames and trusses
      Drawing of gusset plates
      Application of all relevant safety precautions
      Determine and calculate the centroids of regular and irregular lamina




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2. BUILDING CONSTRUCTION

     Layout of buildings on site
     Standard procedure of determining quantities of building materials
     Set up of Slump Test
     Soil tests
     Drawing of sections and views of dwellings
     Layout of frames and trusses (on flat surfaces)
     Drawing of different fixing methods on structures
     Estimation and ordering of building materials
     Placing and care of concrete
     Use and care of tools
     Reading and interpretation of plans and symbols
     Hanging of doors (use of existing door)
     Drawing of one- and two-pipe systems
     Erections and care of scaffolds
     Pattern developments (on cardboard, paper and plate)
     Making different wood joints
     Determination and calculations of areas, circumferences and volumes of building
      materials using existing buildings

3. BRICKLAYING AND PLASTERING

     Calculation and determination of quantities of building materials (existing
      buildings to be used)
     Layout of building foundations on site
     Knowledge of different sands and aggregates
     Performing a Slump Test
     Knowledge of different bonds and joints (use of improvised scale blocks)
     Digging of trenches for drainage purposes
     Knowledge of erecting scaffolds
     Knowledge of pile driving
     Plastering techniques
     Knowledge of steel fixing for concrete slabs, beams and columns
     Scale models of shuttering for columns and beams

4. PLUMBING AND SHEETMETAL WORK

     Pattern development of different connections (paper, hardboard and metal to be
      used)
     Knowledge of one- and two-pipe systems
     Different joints on piping (use off-cuts)
     Working and placing of tabs, valves and drainage
     Different soldering techniques and soldering materials
     Scale models of flashing and gutters (paper, cardboard and metal to be used)
     Use and care of all relevant tools and equipment



                                                                      Page 2 of 16
5. METALWORK

  General criteria:

         Quality of workmanship
         Knowledge of techniques, equipment and materials
         Skills in using techniques, equipment and materials
         Attitudes – safety and workshop habits, perseverance, organizational ability etc.
         Degree of difficulty
         Functionality
         Design
         Planning

  Projects/models should incorporate most of the following processes,
  depending on the availability of tools, equipment and materials.

         Safe and correct use, care and maintenance of hand tools, machine tools and
          accessories

         Measuring and marking – including use of micrometers

         Cutting and filing

         Joining metals:

             Soldering
             Riveting
             Welding – gas and arc
             Formation of seams
             Safe edges

         Cutting of internal and external threads.
         Metal turning

             Drilling
             Facing
             Parallel turning
             Taper turning
             Parting
             Knurling
             Screw-cutting

          Heat treatment:

            Annealing, tempering, hardening, normalizing and case hardening.

          Finishing and Polishing



                                                                          Page 3 of 16
6. WELDING AND METALWORKING

       Pattern development of different connections (cardboard, metal and paper to
        be used)
       Reading and interpretation of structural drawings

    Knowledge and application of different welding symbols
    Layout of steel trusses

       Reading and interpretation of structural drawings
       Layout of gusset plates
       Joining methods
       Procedures for setting up gas welding equipment
       Practical ways of determining hardness of steel
       Determination of centre of gravity for geometrical figures
       Knowledge of different materials, tools and accessories

7. MOTOR MECHANICS

       Practical work to be related to the following aspects depending on the
        availability of components and equipment.

7.1 Constant vacuum carburettor/multi-barrel carburettor

     In this section tune-up related to carbs could be tested i.e. setting of air fuel
      ratios using co-tester/idling air correction etc.

7.2 Compression testing

       Pre-checks
       Dry and wet testing
       Comparison of cylinder balance to specification

7.3 Distributor

       Mechanical testing
       Electrical testing/condenser tests (3) resistance, insulation leakage and
        capacity
       Bench testing
       Mechanical advance/vacuum advance tests/dwell angle
       If no bench tester is available a timing light with dwell meter may be used
       Replacement of distributor and re-timing of engine and starting




                                                                       Page 4 of 16
7.4 Wheel alignment

      Pre-checks
      Camber checks
      Caster checks
      SA1 steering axle inclusion
      Toe-in or Toe-out
      Turning radius / toe-out on runs
      Tyre faults

7.5 Steeringbox (any) including power steering

      Pre-checks
      Total pre-load
      Worn shaft pre-load
      Lash adjustment clearance, etc.
      Overhaul
      Use of relevant specifications to make adjustments i.e. worn shaft pre-load over
       centre adjustment or sector shaft pre-load
      General efficiency

7.6 Electronic ignition systems

      Simple wiring diagram of ignition system & testing
      Battery testing

7.7 Alternator

      Testing simple wiring to alternator and test charging system of vehicle
      Test charging system output

7.8 Calculating engine capacity and compression ratio

      Measure cylinder bore
      Measure stroke length
      Determine clearance volume

7.9 Engine diagnoses

      Valve clearance
      Tune up / service:
        Ignition timing
        Point gaps
        Spark plug gap
        Starter voltage

7.10 Fault finding on engines

      No spark
                                                                      Page 5 of 16
      No Fuel supply
      Firing order etc.

7.11 Hydraulic drives

      Fluid coupling and torque conversion
      Automatic gearboxes:
        Dismantle
        Identify parts
        Power flow
        Check friction
        Assembly

7.12 Electricity

      Use of ammeters
      Use of Voltmeters
      Building simple wiring circuits
      Warning lights for oil or water
      Battery not charging light, etc.

8. TECHNIKA ELECTRICAL AND ELECTRICIAN’S WORK

   Learners will be expected to demonstrate competency on a selection of practical
   tasks during the moderation process. All learners must be present on the day of
   moderation.

8.1 General criteria:

      Planning of task/project
      Identification and purpose of components
      Correct use of tools and equipment
      Demonstration of skills and techniques
      Functionality
      Attitudes: safety, working habits, perseverance
      Initiative/creativity
      Comprehension

8.2 Measuring instruments

      Correct use of the following meters:

8.3 Oscilloscope

      Multimeter
      Energy meter
      Watt meter
      Power factor meter
      Frequency meter
                                                                   Page 6 of 16
      Task/project/activity
      Safety precautions
      Setting up
      Measurement

8.4 Diagrams

      Connections to a circuit

8.5 Electrical current theory

      Task/project/activity

8.6 Making use of the oscilloscope to measure:

      Peak to peak values
      Maximum values
      Measurement of DC voltages
      Do calculations of rms and average values

8.7 RCL circuits

8.8 Task/project/activity

      Determine: The effect of frequency change
      The effect of higher or lower capacitance and/or inductance
      Voltage measurement
      Current measurement

8.9 Transformers

      Task/project/activity
      Single-phase Safety precautions
                    Diagrams
                    Connections
                    Construction
                    Measurement of voltage
      Three-phase Safety precautions
                    Diagrams
                    Connections: 3 single-phase transformers in different
                    configurations
                    Construction
      Measurement of line and phase values

8.10 AC Motors: Single-phase, Three-phase, Motor Starters

      Task/project/activity
      Safety precautions
      Diagrams
                                                                     Page 7 of 16
      Connections
      Construction
      Installation to a circuit
      Testing
      Changing of direction of rotation with the aid of contractors
      Wiring of Capacitor start / Capacitor start and run starters
      Wiring of start - delta starters (Includes the automatic star – delta starter)

8.11 Electronics

   Task/activity/project

      Rectification (half and full wave)
      Amplifier circuits (as a switch and as an amplifier)
      Testing
      Construction
      Additional Task for Technika Electrical Students
      Construction of the following circuits:
      Amplifiers, Oscillators, circuits using operational amplifiers, Clipping and
       Clamping circuits, Lamp dimming and speed control circuits.
      Computer principles: application of logic gates with the aid of Diode logic and
       Transistor Resistor logic.

8.12 General

   Any electrical or electronic project made by the learner will be accepted
   for moderation


9. TECHNIKA ELECTRONICS AND ELECTRONICS

   Learners will be expected to demonstrate a selection of practical tasks during the
   moderation process. All learners must be available on the day of moderation.

9.1 General Criteria:

      Planning of task/project
      Identification and purpose of components
      Correct use of tools and equipment
      Demonstration of skills and techniques
      Functionality
      Attitudes: safety, working habits, perseverance
      Initiative/creativity
      Comprehension

9.2 RLC-Circuits

      The effect of frequency change
      The effect of higher or lower capacitance and/or inductance

                                                                         Page 8 of 16
      Voltage and current measurement
      Phase displacement

9.3 Semi-conductors

      Rectification (construction of a half, -full wave and bridge)
      Switching of SCR, UCT, DIAC, TRIAC, FET
      Application of SCR, UCT, DIAC, TRIAC, FET
      Analysis of BJT configurations
      Testing a junction transistor to determine the lead info

9.4 Amplifiers

      Single stage
      Two stage
      Measurement of input and output wave forms
      Calculation of gain

9.5 Switching and Control Circuits

      Construction of clipping and clamping circuits
      Construction of a lamp dimming circuit
      Construction of a speed control circuit
      Construction of series and shunt regulation of power supplies
      Measuring input and output waveforms of the above
      The effect of higher and lower input and output on regulation

9.6 Oscillators

      Construction of a Colpitts – and Hartley oscillator

9.7 Computer Principles

      Application of logic gates with the aid of Diode logic and Transistor Resistor
       logic
      Proof of De Morgan’s law
      Add two binary numbers with the aid of half- and full adders
      Analysis of working principles of RS and clocked RS latches

9.8 Measuring Instruments

      Safety precautions when using electronic measuring instruments
      Analogue meters
      Voltmeter (coupled in parallel)
      Ammeter (coupled in series)
      Calculate series and shunt resistors for above
      Multimeter
      Oscilloscope

                                                                        Page 9 of 16
9.9 Electronic Equipment

    Analysis of Radio receivers and Radio Transmitters
    Analysis of the monochrome television receiver
    Analyses of the capacitance meter

9.10 General

 Any electronic project made by the learner will be accepted for
 moderation.

10. FITTING AND TURNING

10.1 Calculations:

    Practical assignments based on calculations done in theory with reference to:
         Taper plug gauge
         Inner and outer dovetails
         Distance between toolmakers buttons and
         Angles and sizes on taper turning projects

10.2 Turning:

    Parallel turning to close tolerance
    Tolerance on diameter to allow for a press fit
    Facing to the correct lengths

10.3 Taper Turning:

    External and internal taper done to correct dimensions

10.4 Screw Cutting:

    Provide evidence of the following screw threads:
      Metric thread
      Multi-start thread
      Acme or Square thread

10.5 Milling:

    Procedure to centre a milling cutter and cutting a single keyway
    Using simple indexing to cut multi-faced surfaces
    Using differential indexing to cut one tooth on a gearblank

10.6 Grinding:

    Sharpening of different types of cutters on a cutter grinder using different type
     of grinding wheels.


                                                                    Page 10 of 16
 10.7 Research:

      Research by learners on the programming of numerical control machines with
       special reference to the advantages and disadvantages of these machines.

  Note:
      Pupils must be available for the practical moderation by the external
        moderator.
      Where facilities in the centre do not allow to complete aspects above, written
        assignments must be available to show that learners understand how to
        perform the specific operation on a machine.

11. TECHNIKA MECHANICAL

      General Criteria:

      Planning of the task or project
      Identification of the problem, the purpose and components
      Classification and interpretation of data
      Correct use of tools, equipment and measurement procedures
      Observation, prediction and deduction
      Demonstration of skills and techniques
      Functionality – formulation of hypothesis and control of variables
      Attitudes with regard to safety, working habits, perseverance
      Initiative and or creativity
      Comprehension
      Evaluation

11.1 Orientation

  Industrial housekeeping

      Employee
      Management
      Tasks/Projects/activity
      Written assignments

11.2 Tools

      Surface finish
      Manufacturing Technology
      Measuring tools
      Tasks/Projects/activity
        Assessing the problem
        Making a drawing
        Safety precautions
        Setting up machining to measurement
                                                                     Page 11 of 16
        Surface finish
        Self-evaluation by learner

11.3 Material

      Iron carbon diagram
      Macro- and microstructure of steel
      Standard tests
      Gasses
      Organic chemistry
      Tasks/Projects/activity:
        Drawing up of diagrams
        Calculating critical temperatures
        Testing specimens of material to calculated points
        Testing sample specimens by various methods
        Drawing up of reports of the above results
        Self-evaluation by learner

11.4 Dimensional Control

      Tasks/Projects/activity
        Interpretation of fits and limit systems and table
        Evaluation of a workpiece

11.5 Physical principles

      Statics co-planar
        Polygon of concurrent forces in one plane
        Equilibrium of rigid bodies
        Stress and strain
        Suggested equipment
        Experiments on forces in one plane
      Bar loaded and supported by two bathroom scales
      Steel cable to be used for a specimen in stress related experiments
      Stress diagram interpretation and calculating from the supplied data
      Drawing up a stress diagram from tensile tests
      Tasks/Projects/activity:
        Assessing the problem
        Making up of a drawing of the problem
        Calculating the necessary data
        Initiative and creativity
        Completion and comprehension of the task
        Self-evaluation by the learner
      Dynamics
        Work
        Cinematics
        Relation between forces, mass and acceleration
        Energy
        Transfer of motion
                                                                    Page 12 of 16
        Power
      Heat
      Gases
      Hydraulics
      Tasks/Projects/Activity:
        Assessing the problem
        Making up a drawing of the problem
        Calculating given and assessed data
        Initiative and creativity
        Completion and comprehension of the task
        Self-evaluation by the learner

   NOTE:
   Schools that have not done any practical work to date could choose at least four of
   the above tasks as a practical exam.


12. WOODWORK

12.1 General Criteria

      Quality of workmanship
      Knowledge of techniques, equipment and materials
      Skills in using techniques, equipment and materials
      Attitudes – safety and workshop habits, perseverance, organizational ability etc.
      Degree of difficulty
      Functionality
      Design
      Planning
      Projects/models should incorporate most of the following processes, depending
       on the availability of tools, equipment and materials.
      Correct and safe use, care and maintenance of hand tools, machine tools and
       accessories
      Preparation of timber
      Measuring and marking
      Joints:
        Mortise and tenon
        Dovetail
        Housing
        Half lap joints
        Expansion joints – butt, rubbed glued, tongue and groove etc.
        Mitre joints
      Drawer Construction:          Multiple dovetail
                                     Rebates
      Wood turning                  Preparation of stock
                                     Parallel turning
                                     Faceplate turning
      Fixing                        Using screws and nails
                                     of fittings e.g. hinges, handles and other accessories
                                                                        Page 13 of 16
       Assembly and Finishing


13. WOODWORKING

       Calculation and determination of quantities of building material (existing
        buildings to be used)
       Making of all relevant joints
       Knowledge of all accessories
       Hanging of doors (existing doors may be used)
       Layout of roof trusses (on level surface)
       Determining the rise, tread and landing of staircases
       Knowledge of different adhesives
       Drafting of cutting lists
       Making of scale models where applicable. Learners are encouraged to
        demonstrate understanding by making scale models using any suitable waste
        material e.g. cardboard etc.
       Scale models of shattering for columns and beams

14.    NEEDLEWORK AND CLOTHING

14.1 General Criteria

       Educators should adhere to the following before the Examination
       Session takes place.

       Sewing machines should be threaded and ready for use
       All equipment must be available
       Copies of the assignment sheet should be made available to the learners.

   Safe and correct use of machines and accessories to be applied.

   Some of the following needlework processes will be moderated:

       Laying out and cutting of pattern pieces
       Box pleat
       Darts
       Tucks
       Seams
       Hems
       Openings
       Sleeves
       Collars
       Facings
       Quality and neatness

   Memorandum sheets per learner must be made available to the
   facilitator/moderator

                                                                    Page 14 of 16
    Computerised mark sheets must also be available


15. HOME ECONOMICS

15.1 General Criteria

 Educators should adhere to the following before the Examination Session
 takes place.

    The number of cooking units will give an indication of the number of learners to
     be moderated in a session. One learner per cooking unit.
    Copies of tests should be made available to learners one day prior to the
     practical examination.
    Five days before the examination the responsible educator should choose and
     print the practical tests.
    Ingredients and equipment should be made available on the day of the
     examination.
    No optional recipes/tests may be substituted.
    Memorandum sheets for each learner should be made available to the
     facilitator.
    Computerised marksheets should be made available.

 Safe and correct use of equipment is of utmost importance.

 Some of the following will be moderated:

    Protein dishes
    Flour dishes
    Gelatine
    Vegetables / Salads
    Fruit
    Basic pastry / ready made

 During the cookery session the following is also to be moderated:

    Preparation
    Neatness and hygiene
    Method of work
    Completed dish evaluation. Each dish to be evaluated according to appearance
     texture and taste
    Correct presentation – place mat / tablecloth and correct serving
     utensils/decorations or garnishings of dishes.
    Menu Card – correctness of menu and lay-out




                                                                   Page 15 of 16
16 HOTELKEEPING AND CATERING

 16.1 General Criteria:

  Educators should adhere to the following before the practical
  examination/moderation takes place:
   Menus and appropriate recipes should be planned beforehand by the Chef de
     Cuisine in collaboration with the educator
   The educator should assign various tasks to the learners in advance as
     waitrons will not be allowed to serve family or friends
   Use skilled learners in areas where they will perform to the best of their ability
   Prepare a class list with the year’s practical marks for the facilitator
   The number of the candidate must be attached to the back of the uniform and
     must correspond with the class list
   All learners must wear the appropriate uniform assigned for a particular task
   Planning and the necessary forms should be made available on the day of the
     practical examination
   Computerized mark sheets should be available

  The following will be moderated:

     Menu / wine list
     Organization in the kitchen (of utmost importance to maintain a smooth flow of
      traffic from kitchen to the restaurant)
     Correct table setting according to courses indicated on the menu
     Serving of guests
     Bar Service / correct utensils - “waiter’s friend”
     Front office
     Preparation of food / skills
     Safe use of equipment
     Crisis management
     Exquisite presentation of plated foods – garnishing / decoration
     Neatness and hygiene
     Time Management

  The menu for the Hotel keeping and Catering Practical
  examination/moderation should include the following:

     Protein – fish / meat / chicken. Use more than one technique, eg. crumbed /
      stuffed / fillet
     Vegetables – cuts and techniques eg. Julienne carrots / tied asparagus
      bundles
     Yeast dough – not bought bread rolls etc.
     Pastry – sweet / savoury / phyllo
     Gelatine
     Appropriate Sauces (accompany dishes)
     Chocolate work or spun sugar
     A copy of the menu is to be forwarded to the district facilitator at least one
      week before the practical examination.
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