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

AHCSDT411 Mapping and Delivery Guide
Perform a 1000 seed weight test

Version 1.0
Issue Date: April 2024


Qualification -
Unit of Competency AHCSDT411 - Perform a 1000 seed weight test
Description
Employability Skills
Learning Outcomes and Application This unit of competency describes the skills and knowledge required to determine the weight per 1000 pure seeds from a submitted sample.It applies to senior seed analysts who analyse information and exercise judgement to complete a range of advanced skilled activities and demonstrate deep knowledge in a specific technical area. They have accountability for the work of others and analyse, design and communicate solutions to a range of complex problems. All work is carried out to comply with workplace procedures.No occupational licensing, legislative or certification requirements are known to apply to this unit at the time of publication.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.

Assessors must satisfy current standards for RTOs.
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: Prepare a working sample
  • Obtain pure seed following a purity analysis or as a representative fraction of a submitted sample
  • Use mechanical dividers where appropriate
  • Maintain moisture content of working sample before counting through storing it in moisture-proof containers
  • Complete labelling and records
       
Element: Count and weigh seed by machine
  • Put the entire working sample through a counting machine and record the total number of seeds indicated
  • Weigh working sample to the required number of decimal places
       
Element: Count and weigh replicates by hand
  • Count out eight replicates of 100 seeds randomly from the working sample
  • Weigh each replicate to the required number of decimal places
  • Record weights of each replicate
  • Calculate variance, standard deviation and coefficient of variance
  • Test a new set of replicates where the coefficient of variance exceeds the prescribed value
  • Determine the average weight of 1000 seeds where the coefficient of variance does not exceed the prescribed value
       
Element: Report results
  • Report results of weight determination under "other determinations" to the prescribed number of decimal places
  • Report the method used and the results calculated
       


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.

Element

Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Prepare a working sample

1.1 Obtain pure seed following a purity analysis or as a representative fraction of a submitted sample

1.2 Use mechanical dividers where appropriate

1.3 Maintain moisture content of working sample before counting through storing it in moisture-proof containers

1.4 Complete labelling and records

2. Count and weigh seed by machine

2.1 Put the entire working sample through a counting machine and record the total number of seeds indicated

2.2 Weigh working sample to the required number of decimal places

3. Count and weigh replicates by hand

3.1 Count out eight replicates of 100 seeds randomly from the working sample

3.2 Weigh each replicate to the required number of decimal places

3.3 Record weights of each replicate

3.4 Calculate variance, standard deviation and coefficient of variance

3.5 Test a new set of replicates where the coefficient of variance exceeds the prescribed value

3.6 Determine the average weight of 1000 seeds where the coefficient of variance does not exceed the prescribed value

4. Report results

4.1 Report results of weight determination under "other determinations" to the prescribed number of decimal places

4.2 Report the method used and the results calculated

The candidate must be assessed on their ability to integrate and apply the performance requirements of this unit in a workplace setting. Performance must be demonstrated consistently over time and in a suitable range of contexts.

The candidate must provide evidence that they can:

calculate variance, standard deviation and coefficient of variance

determine the weight per 1000 pure seeds from a submitted sample

prepare and weigh replicates

report results

The candidate must demonstrate knowledge of:

apparatus for weighing, counting and dividing seed samples

calculations such as variance, standard deviation and coefficient of variance

concepts of metrology

enterprise standard operating procedures (SOPs)

relevant health, safety and environment requirements

role of the International Seed Testing Association (ISTA) and the ISTA Rules for Seed Testing

seed biology

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.

Element

Performance criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Prepare a working sample

1.1 Obtain pure seed following a purity analysis or as a representative fraction of a submitted sample

1.2 Use mechanical dividers where appropriate

1.3 Maintain moisture content of working sample before counting through storing it in moisture-proof containers

1.4 Complete labelling and records

2. Count and weigh seed by machine

2.1 Put the entire working sample through a counting machine and record the total number of seeds indicated

2.2 Weigh working sample to the required number of decimal places

3. Count and weigh replicates by hand

3.1 Count out eight replicates of 100 seeds randomly from the working sample

3.2 Weigh each replicate to the required number of decimal places

3.3 Record weights of each replicate

3.4 Calculate variance, standard deviation and coefficient of variance

3.5 Test a new set of replicates where the coefficient of variance exceeds the prescribed value

3.6 Determine the average weight of 1000 seeds where the coefficient of variance does not exceed the prescribed value

4. Report results

4.1 Report results of weight determination under "other determinations" to the prescribed number of decimal places

4.2 Report the method used and the results calculated

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
Obtain pure seed following a purity analysis or as a representative fraction of a submitted sample 
Use mechanical dividers where appropriate 
Maintain moisture content of working sample before counting through storing it in moisture-proof containers 
Complete labelling and records 
Put the entire working sample through a counting machine and record the total number of seeds indicated 
Weigh working sample to the required number of decimal places 
Count out eight replicates of 100 seeds randomly from the working sample 
Weigh each replicate to the required number of decimal places 
Record weights of each replicate 
Calculate variance, standard deviation and coefficient of variance 
Test a new set of replicates where the coefficient of variance exceeds the prescribed value 
Determine the average weight of 1000 seeds where the coefficient of variance does not exceed the prescribed value 
Report results of weight determination under "other determinations" to the prescribed number of decimal places 
Report the method used and the results calculated 

Forms

Assessment Cover Sheet

AHCSDT411 - Perform a 1000 seed weight test
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

AHCSDT411 - Perform a 1000 seed weight test

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: