64063217-c48b-49fd-b2cc-ffef2170dba0.html

<h3> Cool Down (5 minutes)</h3>
<h4>Student Activity</h4>
<p>The tables show the cat population on two islands over several years. Describe mathematically, as precisely as you
  can, how the cat population on each island is changing.</p>
<table class="os-raise-horizontaltable">
  <thead></thead>
  <tbody>
    <tr>
      <th scope="row">year</th>
      <td>
        0
      </td>
      <td>
        1
      </td>
      <td>
        2
      </td>
      <td>
        3
      </td>
      <td>
        4
      </td>
    </tr>
    <tr>
      <th scope="row">number of cats on Meow Island</th>
      <td>
        2
      </td>
      <td>
        6
      </td>
      <td>
        18
      </td>
      <td>
        54
      </td>
      <td>
        162
      </td>
    </tr>
  </tbody>
</table>
<br>
<p><strong>Answer:</strong> <br>
  The cat population on Meow Island is:</p>
<ul>
  <li> tripling each year </li>
  <li> growing by a common ratio each year </li>
</ul>
<table class="os-raise-horizontaltable">
  <thead></thead>
  <tbody>
    <tr>
      <th scope="row">year</th>
      <td>
        0
      </td>
      <td>
        1
      </td>
      <td>
        2
      </td>
      <td>
        3
      </td>
      <td>
        4
      </td>
    </tr>
    <tr>
      <th scope="row">number of cats on Purr Island</th>
      <td>
        2
      </td>
      <td>
        6
      </td>
      <td>
        10
      </td>
      <td>
        14
      </td>
      <td>
        18
      </td>
    </tr>
  </tbody>
</table>
<br>
<p><strong>Answer:</strong><br>
  The cat population on Purr Island is:</p>
<ul>
  <li> adding 4 cats each year </li>
  <li> characterized by a common difference each year </li>
</ul>
<h4>Response to Student Thinking</h4>
<h5> More Chances</h5>
<p>Students will have more opportunities to understand the mathematical ideas in this cool-down, so there is no need to
  slow down or add additional work to the next lessons. Instead, use the results of this cool-down to provide guidance
  for what to look for and emphasize over the next several lessons to support students in advancing their current
  understanding.</p>