Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MEM19064 Mapping and Delivery Guide
Cut gemstone spheres and beads

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEM19064 - Cut gemstone spheres and beads
Description
Employability Skills
Learning Outcomes and Application
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites
Competency Field
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities
Slides
PPT
Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Determine job requirements
  • Follow standard operating procedures (SOPs)
  • Comply with work health and safety (WHS) requirements at all times
  • Identify job requirements from specifications
  • Investigate methods of making spheres and beads
       
Element: Prepare to use bead and sphere making equipment
  • Set up bead mill, sphere-making equipment and drills in accordance with manufacturer’s specifications
  • Complete manufacturer’s maintenance checklist
  • Select materials suitable for making spheres or beads
  • Pre-form gemstones using saw or grinder to produce required shape
  • Grind shape corners to establish rounded form dop stone and work on pavilion first
       
Element: Produce and drill gemstones beads
  • Use appropriate holder templates throughout the process
  • Grind pre-formed beads in bead mill until they are rounded
  • Remove and clean bead materials discarding faulty or broken gemstones
  • Select required beads for drilling
  • Place bead in bead vice, drill half way into the bead, turn over, check alignment and drill the other half ensuring a cut hole through the bead
  • Grind beads in a tumble polisher until requirements are met, using increasingly fine grinding medium
  • Clean tumbler and beads at every change over
  • Clean beads thoroughly after the final grind
  • Place ground beads in the tumbler with polishing medium and tumble to a high lustre
  • Clean finished beads thoroughly with water to meet requirements
       
Element: Produce gemstone spheres
  • Select gemstones to make spheres and pre-form the spheres
  • Grind the spheres in a sphere maker with water and increasingly fine grinding medium
  • Clean spheres thoroughly at each change over
  • Polish cleaned sphere with polishing medium and water using leather sphere cups
       

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, 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.
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
Follow standard operating procedures (SOPs) 
Comply with work health and safety (WHS) requirements at all times 
Identify job requirements from specifications 
Investigate methods of making spheres and beads 
Set up bead mill, sphere-making equipment and drills in accordance with manufacturer’s specifications 
Complete manufacturer’s maintenance checklist 
Select materials suitable for making spheres or beads 
Pre-form gemstones using saw or grinder to produce required shape 
Grind shape corners to establish rounded form dop stone and work on pavilion first 
Use appropriate holder templates throughout the process 
Grind pre-formed beads in bead mill until they are rounded 
Remove and clean bead materials discarding faulty or broken gemstones 
Select required beads for drilling 
Place bead in bead vice, drill half way into the bead, turn over, check alignment and drill the other half ensuring a cut hole through the bead 
Grind beads in a tumble polisher until requirements are met, using increasingly fine grinding medium 
Clean tumbler and beads at every change over 
Clean beads thoroughly after the final grind 
Place ground beads in the tumbler with polishing medium and tumble to a high lustre 
Clean finished beads thoroughly with water to meet requirements 
Select gemstones to make spheres and pre-form the spheres 
Grind the spheres in a sphere maker with water and increasingly fine grinding medium 
Clean spheres thoroughly at each change over 
Polish cleaned sphere with polishing medium and water using leather sphere cups 

Forms

Assessment Cover Sheet

MEM19064 - Cut gemstone spheres and beads
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

MEM19064 - Cut gemstone spheres and beads

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: