Numerical Input Problem OLX Reference

Numerical Input Problem OLX Reference#

Tags: educator reference

Templates#

The following templates represent problems without, and with, a Python script.

Problem with No Tolerance#

<problem>
  <numericalresponse answer="ANSWER (NUMBER)">
    <label>Question text</label>
    <description>Optional tip</description>
    <formulaequationinput />
    <correcthint>Feedback for the correct answer.</correcthint>
    <solution>
      <div class="detailed-solution">
        <p>Explanation</p>
        <p>TEXT OF SOLUTION</p>
      </div>
    </solution>
  </numericalresponse>
</problem>

Answer Created Using a Script#

Note

The following example includes a Python script. When you add a script to a problem component, make sure that it is not indented. A “jailed code” error message appears when you save the problem in Studio if the script element is indented.

<problem>
  <numericalresponse answer="$computed_response">
    <label>Question text</label>
    <description>Optional tip</description>
    <responseparam type="tolerance" default="0.0001" />
<script type="loncapa/python">
computed_response = math.sqrt(math.fsum([math.pow(math.pi,2), math.pow(math.e,2)]))
</script>
    <formulaequationinput />
    <correcthint>Feedback for the correct answer.</correcthint>
    <solution>
      <div class="detailed-solution">
        <p>Explanation</p>
        <p>TEXT OF SOLUTION</p>
      </div>
    </solution>
  </numericalresponse>
</problem>

Elements#

For numerical input problems, the <problem> element can include this hierarchy of child elements.

<numericalresponse>
    <label>
    <description>
    <formulaequationinput>
    <additional_answer>
    <correcthint>
    <responseparam>
    <script>
    <solution>
<demandhint>
    <hint>

In addition, standard HTML tags can be used to format text.

<numericalresponse>#

Required. Indicates that the problem is a numerical input problem.

The <numericalresponse> element is similar to the <formularesponse> element used by the math expression input problem type, but the <numericalresponse> element does not allow unspecified variables.

Attributes#

Attribute

Description

answer

Required. The correct answer to the problem, given as a mathematical expression.

partial_credit

Optional. Specifies the type of partial credit given. close, list, or a combination of both in any order separated by a comma (,).

Note

If you include a variable name preceded with a dollar sign ($) in the problem answer, you can include a script in the problem that computes the expression in terms of that variable.

The grader evaluates the answer that you provide and the learner’s response in the same way. The grader also automatically simplifies any numeric expressions that you or a learner provides. Answers can include simple expressions such as “0.3” and “42”, or more complex expressions such as “1/3” and “sin(pi/5)”.

Children#

  • <label>

  • <description>

  • <formulaequationinput>

  • <additional_answer>

  • <responseparam>

  • <correcthint>

  • <script>

  • <solution>

<label>#

Required. Identifies the question or prompt. You can include HTML tags within this element.

Attributes#

None.

Children#

None.

<description>#

Optional. Provides clarifying information about how to answer the question. You can include HTML tags within this element.

Attributes#

None.

Children#

None.

<formulaequationinput>#

Required. Creates a response field in the LMS where learners enter a response.

Note

Some older problems use a <textline math="1" /> element instead of <formulaequationinput>. However, the <textline math="1" /> element has been deprecated. All new problems should use the <formulaequationinput> element.

Attributes#

Attribute

Description

size

Optional. Defines the width, in characters, of the response field in the LMS.

trailing_text

Optional. Specified text to appear immediately after the response field.

Children#

None.

<additional_answer>#

Optional. Specifies an additional correct answer for the problem. A problem can contain an unlimited number of additional answers.

Attributes#

Attribute

Description

answer

Required. The alternative correct answer.

Children#

correcthint

<responseparam>#

Specifies a tolerance, or margin of error, for an answer.

Attributes#

Attribute

Description

type

Optional. "tolerance" defines a tolerance for a number.

default
Optional. A number or a percentage specifying a numerical or percent

tolerance.

partial_range

Optional. For partial credit problems of type="close", a multiplier for the tolerance. Default is 2.

partial_answers
Optional. For partial credit problems of type="list", a comma-

separated list of values that are to receive 50% credit.

Children#

None.

<correcthint>#

Optional. Specifies feedback to appear after the learner submits the correct answer.

Attributes#

Attribute

Description

label

Optional. The text of the custom feedback label.

Children#

None.

<script>#

Optional. Specifies a script that the grader uses to evaluate a learner’s response. A problem behaves as if all of the code in all of the <script> elements were in a single <script> element. Specifically, any variables that are used in multiple <script> elements share a namespace and can be overridden.

As with all Python, indentation matters, even though the code is embedded in XML.

Attributes#

Attribute

Description

type

Required. Must be set to loncapa/python.

Children#

None.

<solution>#

Optional. Identifies the explanation or solution for the problem, or for one of the questions in a problem that contains more than one question.

This element contains an HTML division <div>. The division contains one or more paragraphs <p> of explanatory text.

<demandhint>#

Optional. Specifies hints for the learner. For problems that include multiple questions, the hints apply to the entire problem.

Attributes#

None.

Children#

<hint>

<hint>#

Required. Specifies additional information that learners can access if needed.

Attributes#

None.

Children#

None.

See also

About Numerical Input Problem (reference)

Manage a Numerical Input Problem (how to)

Award Partial Credit in a Numerical Input Problem (how to)

Maintenance chart

Review Date

Working Group Reviewer

Release

Test situation
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