Assessor Resource

PMC553072B
Model fibrous plaster products

Assessment tool

Version 1.0
Issue Date: April 2024


This unit of competency applies to plaster modellers who are responsible for producing from, sections, samples or designs, a variety of specialty fibrous plaster products which may include non-standard geometric shapes, architectural renovation, restoration and/or replication of existing features.

This competency is generally performed by an experienced modeller or a trainee modeller under supervision.

This unit of competency covers the skills and knowledge required to make a model of a final fibrous plaster product which may be used as a prototype or as a basis for the later production of the item.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Employability Skills

This unit contains employability skills.



Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

The unit will be assessed in as holistic a manner as is practical and may be integrated with the assessment of other relevant units of competency.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Competence must be demonstrated in the ability to recognise situations requiring action and then in implementing appropriate corrective action. Consistent performance should be demonstrated. In particular look to see that:

OHS requirements are met

quality improvement techniques are applied

emergency procedures are understood and applied

waste is minimised.

Context of and specific resources for assessment

Assessment will require access to an operating plant over an extended period of time, or a suitable method of gathering evidence of operating ability over a range of situations.

Assessment will occur over a range of situations which will include disruptions to normal, smooth operation.

Simulation or case studies/scenarios may be required to allow for timely assessment of parts of this unit of competency. Simulation should be based on the actual plant and will include 'walk-throughs' of the relevant competency components. A bank of scenarios/case studies/what ifs and questions will be required to probe the reasoning behind observable actions.

Method of assessment

In all plants it may be appropriate to assess this unit concurrently with relevant teamwork and communication units.

Guidance information for assessment

Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Required skills

Required skills include:

using and maintaining all required materials, tools and parts

recognising situations which could cause production problems and taking appropriate action

implementing enterprise's procedures and relevant regulatory requirements within appropriate time constraints and in a manner relevant to the production of fibrous plaster products

diagnosing and solving problems involved in the work

communicating effectively with team members, management and in some cases, clients

reading and numeracy to interpret workplace documents and technical information

Required knowledge

Required knowledge includes:

specified quality standards

characteristics of different materials

requirements from drawings, specifications or job sheets

distinguish between causes of faults such as:

materials faults

dimensional inaccuracies

inappropriate allowance for material shrinkage

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Procedures

All operations are performed in accordance with standard procedures and work instructions

Products

Products may include:

ornamental castings including scotias, cornices and arches

centre pieces (both reinforced and un-reinforced)

ornamental recessed panels

Equipment and unit operations

This unit of competency includes all such items of equipment and unit operations which form part of the modelling process. These may include:

slides

templates

reinforcing materials

separation agents

lifting equipment (for large work)

Fibre

Fibre may be glass fibre or other appropriate fibre

Typical problems

Typical problems may include:

incorrect calculations or setting out

inappropriate plaster mixtures

variations in ambient temperature

inappropriate placement of reinforcing or anchor points

Occupational health and safety (OHS)

The identification and control of hazards and the application of OHS is to be in accordance with current, applicable legislation and regulations, and company procedures. All work is carried out at all times in accordance with these requirements

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Discuss required attributes of the work piece with supervisor or as appropriate the client 
Determine dimensions and geometry of the work piece 
Identify the profile, pattern and specific features required to be replicated 
Establish and/or plan fixing or anchoring points and the best way to facilitate this in the work piece 
Plan the production method and determine materials and equipment needs. 
Establish work area including anchor points for slides or screeds as necessary 
Develop templates required to produce the work piece 
Mark out the correct dimensions and work piece geometry and check against templates or slide radii 
Establish and position any support materials required to develop and sustain the work piece during production 
Position any lifting or anchoring materials and check that these do not inhibit templates or screeds 
Test the functionality of the slides and ensure that all parts of the proposed work piece can be accessed 
Produce a segment of the desired profile and ensure that this matches the requirements of the original design 
Mount the sample to facilitate replication or to produce appropriate surface detail on the work piece 
Lubricate the sample for replication and the supporting work plate to facilitate ease of stripping of the completed work piece 
Set up the supporting material in a manner which avoids interference with the screed or template 
Prepare plaster mix and ensure fibre strand is available 
Build up rough outline of the work piece adding fibre as the process proceeds 
Form up the desired shape by moving the sample, template or mould to facilitate development of the desired profile or by screeding off 
Build in anchor points or reinforcing at desired positions as the work proceeds 
Hollow out the work piece to minimise the mass of the object, as appropriate 
Check the profile to ensure compliance with the desired product 
Check the work piece for dimensional accuracy 
Remove any external supports from the work piece after the plaster has dried 
Dismantle slides if used 
Clean and put away tools and fitments used in the production process 
Remove the work piece and inspect for errors, damage or porosity 
Clean up any excrescences and remove any waste material 
Coat the surface of the finished product according to organisational requirements to protect the surface 
Remove finished product to storage and shipment 
Identify hazards during the process or within the work area 
Assess the risks arising from those hazards 
Implement measures to control those risks in line with procedures and duty of care 
Identify possible problems in equipment or process 
Determine problems needing action 
Determine possible fault causes 
Rectify problem using appropriate solution within area of responsibility 
Follow through items initiated until final resolution has occurred 
Report problems outside area of responsibility to designated person 

Forms

Assessment Cover Sheet

PMC553072B - Model fibrous plaster products
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

PMC553072B - Model fibrous plaster products

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: