Anchor paper 90
Anchor Papers:
Problem Solving
practitioner
Problem Solving Rationale
<p>The student's strategy of making diagrams (area models) to determine if 1/2 of a pie eaten is the same as 4/8 of a pie eaten works to solve this task. The student's answer, "They are both correct," is correct.</p>
Reasoning and Proof
practitioner
Reasoning Proof Rationale
<p>The student demonstrates understanding of the underlying concept of finding halves and eighths and comparing the two fractions in their area models.</p>
Communication Level
practitioner
Communication Rationale
<p>The student correctly uses the mathematical terms <i>diagram</i>, <i>key</i> and <i>more</i>. The student also correctly uses the mathematical notation 1/2, 4/8, 6/8. Mathematical notation of fractions is different from the written form because the student has to determine the correct numerator and denominator.</p>
Connections Level
practitioner
Connections RationaleAnchor paper 90
<p>The student makes the mathematical observation, "If there were 2 more friends then 6/8 will be eaten." The student provides an area model to define 6/8.</p>
Representation
practitioner
Representation Rationale
<p>The student's area models are appropriate to the task and accurate. A key defines pie and the sections of the pie that are eaten.</p>