<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      background: #f8fafc;
      color: #1e2945;
      padding: 12px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 100%;
    }

    .cards-row {
      display: flex;
      justify-content: center;
      gap: 10px;
      width: 100%;
      max-width: 580px;
    }

    .num-card {
      flex: 1;
      min-width: 0;
      background: #ffffff;
      border-radius: 12px;
      padding: 10px 6px;
      display: flex;
      flex-direction: column;
      align-items: center;
      box-shadow: 0 2px 6px rgba(0,0,0,0.06);
      border: 2px solid transparent;
      transition: box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .num-card.smallest {
      border-color: #3b82f6;
      background: #f0f7ff;
    }

    .num-card.mid {
      border-color: #e2e8f0;
      background: #ffffff;
    }

    .num-card.largest {
      border-color: #10b981;
      background: #f0fdf4;
    }

    .badge {
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      padding: 2px 6px;
      border-radius: 6px;
      margin-bottom: 6px;
    }

    .badge-smallest {
      background: #dbeafe;
      color: #1d4ed8;
    }

    .badge-mid {
      background: #f1f5f9;
      color: #64748b;
    }

    .badge-largest {
      background: #dcfce7;
      color: #15803d;
    }

    .num-val {
      font-size: 26px;
      font-weight: 800;
      line-height: 1;
      margin-bottom: 8px;
    }

    .val-38 { color: #1d4ed8; }
    .val-75 { color: #475569; }
    .val-104 { color: #15803d; }

    .model-area {
      height: 72px;
      width: 100%;
      display: flex;
      align-items: flex-end;
      justify-content: center;
      gap: 6px;
      padding: 4px 0;
      margin-bottom: 8px;
    }

    .block-group {
      display: flex;
      gap: 2px;
      align-items: flex-end;
    }

    /* Flat (100) */
    .flat-100 {
      width: 50px;
      height: 50px;
      background: #a7f3d0;
      border: 1.5px solid #059669;
      display: grid;
      grid-template-columns: repeat(10, 1fr);
      grid-template-rows: repeat(10, 1fr);
      border-radius: 2px;
    }
    .flat-cell {
      border-right: 0.5px solid #059669;
      border-bottom: 0.5px solid #059669;
    }

    /* Rod (10) */
    .rod-10 {
      width: 5px;
      height: 50px;
      background: #93c5fd;
      border: 1px solid #2563eb;
      display: flex;
      flex-direction: column;
      border-radius: 1px;
    }
    .rod-75 .rod-10 {
      background: #cbd5e1;
      border-color: #64748b;
      width: 4.5px;
    }
    .rod-unit {
      flex: 1;
      border-bottom: 0.5px solid rgba(0,0,0,0.25);
    }
    .rod-unit:last-child {
      border-bottom: none;
    }

    /* Ones (dots/cubes) */
    .ones-col {
      display: flex;
      flex-direction: column-reverse;
      flex-wrap: wrap-reverse;
      gap: 2px;
      max-height: 50px;
      align-content: flex-start;
    }

    .unit-cube {
      width: 5px;
      height: 5px;
      border-radius: 1px;
    }
    .cube-38 {
      background: #3b82f6;
    }
    .cube-75 {
      background: #64748b;
    }
    .cube-104 {
      background: #10b981;
    }

    .place-label {
      font-size: 11px;
      font-weight: 600;
      color: #64748b;
      text-align: center;
      line-height: 1.2;
    }

    .summary-strip {
      margin-top: 14px;
      background: #ffffff;
      padding: 6px 16px;
      border-radius: 20px;
      border: 1px solid #e2e8f0;
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 15px;
    }

    .summary-strip span.op {
      color: #94a3b8;
      font-size: 13px;
    }
  </style>
</head>
<body>

  <div class="cards-row">
    
    <div class="num-card smallest">
      <div class="badge badge-smallest">Smallest</div>
      <div class="num-val val-38">38</div>
      <div class="model-area">
        <div class="block-group">
          <div class="rod-10"><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div></div>
          <div class="rod-10"><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div></div>
          <div class="rod-10"><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div></div>
        </div>
        <div class="ones-col">
          <div class="unit-cube cube-38"></div>
          <div class="unit-cube cube-38"></div>
          <div class="unit-cube cube-38"></div>
          <div class="unit-cube cube-38"></div>
          <div class="unit-cube cube-38"></div>
          <div class="unit-cube cube-38"></div>
          <div class="unit-cube cube-38"></div>
          <div class="unit-cube cube-38"></div>
        </div>
      </div>
      <div class="place-label">3 tens<br>8 ones</div>
    </div>

    
    <div class="num-card mid">
      <div class="badge badge-mid">Between</div>
      <div class="num-val val-75">75</div>
      <div class="model-area">
        <div class="block-group rod-75">
          <div class="rod-10"><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div></div>
          <div class="rod-10"><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div></div>
          <div class="rod-10"><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div></div>
          <div class="rod-10"><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div></div>
          <div class="rod-10"><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div></div>
          <div class="rod-10"><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div></div>
          <div class="rod-10"><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div><div class="rod-unit"></div></div>
        </div>
        <div class="ones-col">
          <div class="unit-cube cube-75"></div>
          <div class="unit-cube cube-75"></div>
          <div class="unit-cube cube-75"></div>
          <div class="unit-cube cube-75"></div>
          <div class="unit-cube cube-75"></div>
        </div>
      </div>
      <div class="place-label">7 tens<br>5 ones</div>
    </div>

    
    <div class="num-card largest">
      <div class="badge badge-largest">Largest</div>
      <div class="num-val val-104">104</div>
      <div class="model-area">
        <div class="flat-100">
          <script>
            for(let i=0; i<100; i++) document.write('<div class="flat-cell"></div>');
          </script>
        </div>
        <div class="ones-col">
          <div class="unit-cube cube-104"></div>
          <div class="unit-cube cube-104"></div>
          <div class="unit-cube cube-104"></div>
          <div class="unit-cube cube-104"></div>
        </div>
      </div>
      <div class="place-label">1 hundred<br>4 ones</div>
    </div>
  </div>

  <div class="summary-strip">
    <span class="val-38">38</span>
    <span class="op">&lt;</span>
    <span class="val-75">75</span>
    <span class="op">&lt;</span>
    <span class="val-104">104</span>
  </div>

</body>
</html>

Using Open Number Lines to Order Numbers to 120

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      width: 100%;
      height: 100%;
      min-height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      background: #ffffff;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      color: #1e2945;
      padding: 16px;
      user-select: none;
    }

    .diagram-stage {
      width: 100%;
      max-width: 580px;
      display: flex;
      flex-direction: column;
      align-items: center;
      position: relative;
    }

    /* Badges Row */
    .badges-row {
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 24px;
      padding: 0 4px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 15px;
      font-weight: 700;
      padding: 8px 14px;
      border-radius: 999px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .badge-least {
      background: #e0f2fe;
      color: #0369a1;
      border: 2px solid #bae6fd;
    }

    .badge-greatest {
      background: #dcfce7;
      color: #15803d;
      border: 2px solid #bbf7d0;
    }

    .badge .arrow {
      font-size: 16px;
      line-height: 1;
    }

    /* Center Pointer */
    .pointer-box {
      background: #f1f5f9;
      border: 2px dashed #94a3b8;
      color: #1e2945;
      font-size: 15px;
      font-weight: 700;
      padding: 10px 18px;
      border-radius: 14px;
      display: flex;
      flex-direction: column;
      align-items: center;
      margin-bottom: 18px;
      animation: gentleBob 2.4s ease-in-out infinite;
      box-shadow: 0 4px 12px rgba(30, 41, 69, 0.05);
    }

    .pointer-icon {
      font-size: 20px;
      margin-top: 2px;
      color: #64748b;
    }

    @keyframes gentleBob {
      0%, 100% {
        transform: translateY(0);
      }
      50% {
        transform: translateY(-6px);
      }
    }

    /* Number Line */
    .line-container {
      width: 100%;
      height: 48px;
      position: relative;
      display: flex;
      align-items: center;
    }

    .line-svg {
      width: 100%;
      height: 100%;
      overflow: visible;
    }

    /* Direction Subtitles */
    .hints-row {
      width: 100%;
      display: flex;
      justify-content: space-between;
      margin-top: 14px;
      padding: 0 8px;
      font-size: 13px;
      font-weight: 600;
      color: #64748b;
    }
  </style>
</head>
<body>

  <div class="diagram-stage">
    
    <div class="badges-row">
      <div class="badge badge-least">
        <span class="arrow">←</span>
        <span>Smaller / Least</span>
      </div>

      <div class="badge badge-greatest">
        <span>Bigger / Greatest</span>
        <span class="arrow">→</span>
      </div>
    </div>

    
    <div class="pointer-box">
      <span>Place numbers here in order!</span>
      <span class="pointer-icon">↓</span>
    </div>

    
    <div class="line-container">
      <svg class="line-svg" viewBox="0 0 540 40" preserveAspectRatio="none">
        <defs>
          <marker id="arrow-left" viewBox="0 0 10 10" refX="2" refY="5" markerWidth="6" markerHeight="6" orient="auto-start-reverse">
            <path d="M 10 1 L 1 5 L 10 9 z" fill="#94a3b8" />
          </marker>
          <marker id="arrow-right" viewBox="0 0 10 10" refX="8" refY="5" markerWidth="6" markerHeight="6" orient="auto">
            <path d="M 0 1 L 9 5 L 0 9 z" fill="#94a3b8" />
          </marker>
        </defs>

        
        <line x1="16" y1="20" x2="524" y2="20" stroke="#94a3b8" stroke-width="5" stroke-linecap="round" marker-start="url(#arrow-left)" marker-end="url(#arrow-right)" />

        
        <line x1="135" y1="14" x2="135" y2="26" stroke="#cbd5e1" stroke-width="3" stroke-linecap="round" />
        <line x1="270" y1="10" x2="270" y2="30" stroke="#64748b" stroke-width="3" stroke-linecap="round" />
        <line x1="405" y1="14" x2="405" y2="26" stroke="#cbd5e1" stroke-width="3" stroke-linecap="round" />
      </svg>
    </div>

    
    <div class="hints-row">
      <span>Counts Down</span>
      <span>Counts Up</span>
    </div>
  </div>

</body>
</html>

111.3(b)(2)(F)

Aligned learning resources

Related diagrams