8490 Solve problems using calculations with numbers expressed in

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```					                                                                       8490 version 3
9-Feb-10
1 of 3

NUMBER
Solve problems using calculations with
numbers expressed in different forms

level:                    1

credit:                   2

final date for comment:   June 2008

expiry date:              December 2009

sub-field:                Mathematics

purpose:                  People credited with this unit standard are able to convert
between fractions, decimals and percentages; and solve
problems involving conversions between percentages and
fractions.

entry information:        Open.

accreditation option:     Evaluation of documentation by NZQA.

moderation option:        A centrally established and directed national moderation
system has been set up by NZQA.

special notes:            1    Assessment Notes
Assessment tasks should not include the need for
rounding or truncating.

In element 1, conversion is between all the forms:
fractions, decimals and percentages (ie six different
types).

In element 2, the assessment task must include solving
problems involving the conversion between
percentages and fractions.

The appropriateness of the chosen method may be
apparent from the correct solution.

 New Zealand Qualifications Authority 2010
8490 version 3
9-Feb-10
2 of 3

NUMBER
Solve problems using calculations with
numbers expressed in different forms

In this unit standard, problems refer to questions
(presented in text format) that involve one step of
calculations in the solution.

Calculators and/or computers may be used in
achievement of credit for this unit standard.

2    This unit standard could be a preliminary one to
Unit 5224, Use decimals and percentages to solve
problems, and Unit 5225, Use fractions, ratio, and
proportion to solve problems.

Elements and Performance Criteria

element 1

Convert between fractions, decimals and percentages.

performance criteria

1.1         Converted number is written in the required form.

element 2

Solve problems involving conversions between percentages and fractions.

performance criteria

2.1         Method selected is appropriate to the problem.

2.2         Solution is consistent with the problem.

to suggest changes to the content of this unit standard.

 New Zealand Qualifications Authority 2010
8490 version 3
9-Feb-10
3 of 3

NUMBER
Solve problems using calculations with
numbers expressed in different forms

Providers must be accredited by the Qualifications Authority or a delegated inter -
institutional body before they can register credits from assessment against unit standards
or deliver courses of study leading to that assessment.

Industry Training Organisations must be accredited by the Qualifications Authority before
they can register credits from assessment against unit standards.

Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.

Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for providers wishing to
develop education and training programmes, such as minimum qualifications for tutors and
assessors, and special resource requirements.

This unit standard is covered by AMAP 0226 which can be accessed at
http://www.nzqa.govt.nz/site/framework/search.html.

 New Zealand Qualifications Authority 2010

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