<TestItem CLASS="FR" METHOD="keyinput">
<Stem>
	<Paragraph>
          <Sentence>A gardener plants rose bushes in rows in a triangular 
                    flowerbed. The first row has only one rose bush. If each row 
                    has two more rose bushes than the preceding row, how many rose 
                    bushes are in the 5th row?</Sentence> 
        </Paragraph>
</Stem>
<input_collection>
	<inputfield type="inline" size="shortest">Enter your answer here:</inputfield>
</input_collection>
<key TYPE="math" >
    <response SCORE="1" EVIDENCEVAL="1">
        <observable>9</observable>
        <feedback TYPE="Student">Well done!</feedback>
        <feedback TYPE="Teacher">The student got this item correct.</feedback>
    </response>
    <response  SCORE="0" EVIDENCEVAL="0">
        <observable>25</observable>
        <feedback TYPE="Student">Good try, but incorrect. You wrote the total number of 
                                 rose bushes. There are 9 rose bushes in the 5th row.</feedback>
        <feedback TYPE="Teacher">Student seems to have counted all the rose bushes, 
                                 and not only the number in the 5th row.</feedback>
    </response>
    <response  SCORE="0" EVIDENCEVAL="0">
        <observable>15</observable>
        <feedback TYPE="Student">Sorry, that was incorrect. Each row has 2 more bushes 
                                 than the previous row, giving the 5th row 9 rose bushes.</feedback>
        <feedback TYPE="Teacher">Seems that each row in this solution has one more than 
                                 the previous row.</feedback>
    </response>
    <response  SCORE="0" EVIDENCEVAL="0">
        <observable ANY="true"/>
        <feedback TYPE="Student">Sorry, that was incorrect. Each row has 2 more bushes 
                                 than the previous row, giving the 5th row 9 rose bushes.</feedback>
        <feedback TYPE="Teacher">The student did not get this item right.</feedback>
    </response>
</key>	
<Metadata>
    <AeL ItemNode="tModelExtendArithmetic1a" Difficulty="1">
        <PMNode LINK="true">ModelArithmetic</PMNode>
        <PMNode>ExtendArithmetic</PMNode>
    </AeL>
</Metadata>

</TestItem>
