<!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: #fafbfc;
      color: #1e2945;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: space-between;
      min-height: 100%;
      padding: 16px 12px;
      overflow-x: hidden;
      user-select: none;
    }

    /* Top step selector */
    .controls {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      justify-content: center;
    }
    .btn {
      appearance: none;
      border: 1px solid #d0d7de;
      background: #ffffff;
      color: #1e2945;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
    }
    .btn.active {
      background: #22b7ff;
      color: #ffffff;
      border-color: #22b7ff;
      box-shadow: 0 2px 8px rgba(34, 183, 255, 0.35);
    }
    .btn-play {
      width: 34px;
      height: 34px;
      padding: 0;
      justify-content: center;
      border-radius: 50%;
    }

    /* Stage Area */
    .stage {
      position: relative;
      width: 100%;
      max-width: 460px;
      height: 190px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    /* Snatch Hand Indicator */
    .snatch-tool {
      position: absolute;
      top: 14px;
      left: calc(50% - 124px);
      font-size: 32px;
      opacity: 0;
      transform: translateY(-16px) scale(0.8);
      transition: all 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
      pointer-events: none;
      z-index: 10;
    }
    .stage.snatched .snatch-tool {
      opacity: 1;
      transform: translateY(0) scale(1);
    }

    /* Sound Blocks Container */
    .blocks-row {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      position: relative;
    }

    .block-wrap {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.5s ease;
    }

    .sound-tile {
      width: 58px;
      height: 62px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 28px;
      font-weight: 800;
      color: #ffffff;
      box-shadow: 0 6px 14px rgba(0, 0, 0, 0.1), inset 0 2px 0 rgba(255, 255, 255, 0.4);
      position: relative;
    }

    .tile-s { background: linear-gradient(145deg, #ff7675, #d63031); }
    .tile-p { background: linear-gradient(145deg, #74b9ff, #0984e3); }
    .tile-o { background: linear-gradient(145deg, #55efc4, #00b894); }
    .tile-t { background: linear-gradient(145deg, #ffeaa7, #fdcb6e); color: #2d3436; }

    .phoneme-label {
      font-size: 14px;
      font-weight: 700;
      color: #636e72;
      background: #f1f2f6;
      padding: 2px 8px;
      border-radius: 8px;
      transition: opacity 0.3s;
    }

    /* Animation States */
    /* Snatch tile S lifts up & fades */
    .stage.snatched .block-s {
      transform: translateY(-56px) rotate(-12deg);
      opacity: 0.25;
    }
    .stage.snatched .block-s .phoneme-label {
      text-decoration: line-through;
      color: #d63031;
    }

    /* Shift P-O-T left into a compact unified word */
    .stage.snatched .block-p {
      transform: translateX(-70px);
    }
    .stage.snatched .block-o {
      transform: translateX(-70px);
    }
    .stage.snatched .block-t {
      transform: translateX(-70px);
    }

    /* Word Banner Result */
    .sparkle {
      position: absolute;
      right: calc(50% - 138px);
      top: 14px;
      font-size: 22px;
      opacity: 0;
      transform: scale(0.5);
      transition: all 0.4s ease 0.2s;
    }
    .stage.snatched .sparkle {
      opacity: 1;
      transform: scale(1.1);
    }

    /* Bottom Mathematical / Sound Formula */
    .formula-bar {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: clamp(3px, 1.2vw, 6px);
      background: #ffffff;
      padding: 8px clamp(8px, 2.5vw, 16px);
      border-radius: 12px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      border: 1px solid #eef0f3;
      white-space: nowrap;
      max-width: 100%;
    }
    .chip {
      padding: 2px clamp(4px, 1.4vw, 8px);
      border-radius: 6px;
      font-size: clamp(11px, 3.2vw, 15px);
      font-weight: 700;
      line-height: 1.2;
    }
    .chip-s { background: #ffebee; color: #c62828; }
    .chip-p { background: #e3f2fd; color: #1565c0; }
    .chip-o { background: #e8f8f5; color: #00796b; }
    .chip-t { background: #fff8e1; color: #f57f17; }
    .chip-result {
      background: #22b7ff;
      color: #ffffff;
      padding: 2px clamp(6px, 1.8vw, 12px);
      border-radius: 8px;
      font-size: clamp(12px, 3.4vw, 17px);
      font-weight: 800;
    }
    .op {
      color: #94a3b8;
      font-weight: 800;
      font-size: clamp(11px, 3vw, 15px);
      line-height: 1;
    }

    /* Responsive scaling for 350px width */
    @media (max-width: 400px) {
      body {
        padding: 12px 6px;
      }
      .sound-tile {
        width: 46px;
        height: 50px;
        font-size: 24px;
        border-radius: 12px;
      }
      .phoneme-label {
        font-size: 12px;
        padding: 1px 6px;
      }
      .blocks-row {
        gap: 8px;
      }
      .stage.snatched .block-p,
      .stage.snatched .block-o,
      .stage.snatched .block-t {
        transform: translateX(-54px);
      }
      .snatch-tool {
        left: calc(50% - 96px);
        font-size: 26px;
      }
      .sparkle {
        right: calc(50% - 108px);
        font-size: 18px;
      }
      .formula-bar {
        padding: 6px 8px;
        gap: 3px;
      }
      .chip {
        padding: 2px 4px;
      }
      .chip-result {
        padding: 2px 7px;
      }
    }
  </style>
</head>
<body>

  
  <div class="controls">
    <button class="btn btn-play" id="playBtn" title="Auto Play">▶</button>
    <button class="btn active" id="btnStep1">1. spot</button>
    <button class="btn" id="btnStep2">2. Snatch /s/</button>
  </div>

  
  <div class="stage" id="stage">
    <div class="snatch-tool" id="snatchTool">🫳</div>
    <div class="sparkle" id="sparkle">✨</div>

    <div class="blocks-row">
      <div class="block-wrap block-s">
        <div class="sound-tile tile-s">s</div>
        <span class="phoneme-label">/s/</span>
      </div>
      <div class="block-wrap block-p">
        <div class="sound-tile tile-p">p</div>
        <span class="phoneme-label">/p/</span>
      </div>
      <div class="block-wrap block-o">
        <div class="sound-tile tile-o">o</div>
        <span class="phoneme-label">/o/</span>
      </div>
      <div class="block-wrap block-t">
        <div class="sound-tile tile-t">t</div>
        <span class="phoneme-label">/t/</span>
      </div>
    </div>
  </div>

  
  <div class="formula-bar" id="formula">
    <span class="chip chip-s">/s/</span>
    <span class="op">+</span>
    <span class="chip chip-p">/p/</span>
    <span class="op">+</span>
    <span class="chip chip-o">/o/</span>
    <span class="op">+</span>
    <span class="chip chip-t">/t/</span>
    <span class="op">−</span>
    <span class="chip chip-s">/s/</span>
    <span class="op">=</span>
    <span class="chip chip-result" id="resultLabel">pot</span>
  </div>

  <script>
    const stage = document.getElementById('stage');
    const btn1 = document.getElementById('btnStep1');
    const btn2 = document.getElementById('btnStep2');
    const playBtn = document.getElementById('playBtn');

    let currentStep = 0;
    let autoInterval = null;

    function playTone(freq, type = 'sine', dur = 0.15) {
      try {
        const AudioCtx = window.AudioContext || window.webkitAudioContext;
        if (!AudioCtx) return;
        const ctx = new AudioCtx();
        const osc = ctx.createOscillator();
        const gain = ctx.createGain();
        osc.type = type;
        osc.frequency.setValueAtTime(freq, ctx.currentTime);
        gain.gain.setValueAtTime(0.12, ctx.currentTime);
        gain.gain.exponentialRampToValueAtTime(0.001, ctx.currentTime + dur);
        osc.connect(gain);
        gain.connect(ctx.destination);
        osc.start();
        osc.stop(ctx.currentTime + dur);
      } catch (e) {}
    }

    function setStep(step, userTriggered = false) {
      currentStep = step;
      if (step === 0) {
        stage.classList.remove('snatched');
        btn1.classList.add('active');
        btn2.classList.remove('active');
        if (userTriggered) playTone(360, 'triangle', 0.12);
      } else {
        stage.classList.add('snatched');
        btn1.classList.remove('active');
        btn2.classList.add('active');
        if (userTriggered) {
          playTone(520, 'sine', 0.1);
          setTimeout(() => playTone(660, 'sine', 0.2), 120);
        }
      }
    }

    btn1.addEventListener('click', () => {
      stopAuto();
      setStep(0, true);
    });

    btn2.addEventListener('click', () => {
      stopAuto();
      setStep(1, true);
    });

    function toggleAuto() {
      if (autoInterval) {
        stopAuto();
      } else {
        playBtn.textContent = '⏸';
        playBtn.classList.add('active');
        setStep(currentStep === 0 ? 1 : 0);
        autoInterval = setInterval(() => {
          setStep(currentStep === 0 ? 1 : 0);
        }, 3200);
      }
    }

    function stopAuto() {
      if (autoInterval) {
        clearInterval(autoInterval);
        autoInterval = null;
      }
      playBtn.textContent = '▶';
      playBtn.classList.remove('active');
    }

    playBtn.addEventListener('click', toggleAuto);
  </script>
</body>
</html>

Deleting Initial and Final Sounds in Spoken Consonant Clusters

<!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">
  <script src="{{VENDOR_CDN}}/classace-diagram.js"></script>
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      user-select: none;
      -webkit-user-select: none;
    }

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

    .main-box {
      width: 100%;
      max-width: 480px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    /* Tab Switcher */
    .tabs {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
      background: #f1f5f9;
      padding: 4px;
      border-radius: 12px;
    }

    .tab-btn {
      border: none;
      background: transparent;
      padding: 9px 12px;
      font-size: 14px;
      font-weight: 700;
      color: #64748b;
      border-radius: 9px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
    }

    .tab-btn.active {
      background: #ffffff;
      color: #0284c7;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
    }

    /* Card Panels */
    .panel-container {
      position: relative;
      min-height: 250px;
    }

    .panel {
      position: absolute;
      inset: 0;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.25s ease, transform 0.25s ease;
      transform: translateY(6px);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 14px;
    }

    .panel.active {
      opacity: 1;
      pointer-events: auto;
      transform: translateY(0);
      position: relative;
    }

    /* Phoneme Row */
    .phonemes-wrap {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .phoneme-tile {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      width: 58px;
      height: 68px;
      background: #ffffff;
      border: 2px solid #cbd5e1;
      border-radius: 12px;
      font-size: 22px;
      font-weight: 800;
      color: #0f172a;
      position: relative;
      box-shadow: 0 3px 0 #cbd5e1;
      cursor: pointer;
      transition: border-color 0.2s ease, background-color 0.2s ease;
    }

    .phoneme-tile .sound-icon {
      font-size: 10px;
      color: #94a3b8;
      margin-top: 2px;
    }

    /* Target Deleted Tile */
    .phoneme-tile.deleted {
      background: #fef2f2;
      border-color: #fca5a5;
      color: #dc2626;
      box-shadow: 0 3px 0 #fca5a5;
    }

    .phoneme-tile.deleted::after {
      content: '';
      position: absolute;
      width: 120%;
      height: 3px;
      background: #ef4444;
      border-radius: 2px;
      transform: rotate(-35deg);
    }

    /* Kept Tile */
    .phoneme-tile.kept {
      background: #f0f9ff;
      border-color: #7dd3fc;
      color: #0369a1;
      box-shadow: 0 3px 0 #7dd3fc;
    }

    /* Indicator Badge */
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 12px;
      font-size: 13px;
      font-weight: 700;
      border-radius: 20px;
    }

    .badge-remove {
      background: #fee2e2;
      color: #b91c1c;
      border: 1px solid #fecaca;
    }

    /* Transform Flow */
    .flow-arrow {
      font-size: 18px;
      color: #94a3b8;
      line-height: 1;
    }

    /* Result Card */
    .result-row {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      background: #f8fafc;
      border: 1.5px dashed #cbd5e1;
      border-radius: 14px;
      padding: 10px 18px;
      width: 100%;
      max-width: 320px;
    }

    .result-label {
      font-size: 13px;
      font-weight: 700;
      color: #64748b;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .result-word {
      font-size: 26px;
      font-weight: 900;
      color: #059669;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .listen-btn {
      border: none;
      background: #e0f2fe;
      color: #0284c7;
      padding: 6px 12px;
      font-size: 13px;
      font-weight: 700;
      border-radius: 8px;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 5px;
      transition: background 0.15s ease;
    }

    .listen-btn:hover {
      background: #bae6fd;
    }

    @media (max-width: 380px) {
      .phoneme-tile {
        width: 48px;
        height: 60px;
        font-size: 18px;
      }
      .result-word {
        font-size: 22px;
      }
      .tab-btn {
        font-size: 12px;
        padding: 8px 6px;
      }
    }
  </style>
</head>
<body>

  <div class="main-box">
    
    <div class="tabs">
      <button class="tab-btn active" id="tabOuter" onclick="switchTab(0)">
        <span>1.</span> Remove Outer
      </button>
      <button class="tab-btn" id="tabInner" onclick="switchTab(1)">
        <span>2.</span> Remove Inner
      </button>
    </div>

    
    <div class="panel-container">
      
      
      <div class="panel active" id="panelOuter">
        <div class="badge badge-remove">✕ Delete 1st Sound /s/</div>

        <div class="phonemes-wrap">
          <div class="phoneme-tile deleted" onclick="playTone(320, 's')">
            <span>s</span>
            <span class="sound-icon">🔊</span>
          </div>
          <div class="phoneme-tile kept" onclick="playTone(392, 'p')">
            <span>p</span>
            <span class="sound-icon">🔊</span>
          </div>
          <div class="phoneme-tile kept" onclick="playTone(440, 'i')">
            <span>i</span>
            <span class="sound-icon">🔊</span>
          </div>
          <div class="phoneme-tile kept" onclick="playTone(523, 'n')">
            <span>n</span>
            <span class="sound-icon">🔊</span>
          </div>
        </div>

        <div class="flow-arrow">↓</div>

        <div class="result-row">
          <span class="result-label">Leaves:</span>
          <span class="result-word">pin</span>
          <button class="listen-btn" onclick="playWord(['p','i','n'])">🔊 Play</button>
        </div>
      </div>

      
      <div class="panel" id="panelInner">
        <div class="badge badge-remove">✕ Delete 2nd Sound /r/</div>

        <div class="phonemes-wrap">
          <div class="phoneme-tile kept" onclick="playTone(330, 't')">
            <span>t</span>
            <span class="sound-icon">🔊</span>
          </div>
          <div class="phoneme-tile deleted" onclick="playTone(370, 'r')">
            <span>r</span>
            <span class="sound-icon">🔊</span>
          </div>
          <div class="phoneme-tile kept" onclick="playTone(440, 'i')">
            <span>i</span>
            <span class="sound-icon">🔊</span>
          </div>
          <div class="phoneme-tile kept" onclick="playTone(523, 'p')">
            <span>p</span>
            <span class="sound-icon">🔊</span>
          </div>
        </div>

        <div class="flow-arrow">↓</div>

        <div class="result-row">
          <span class="result-label">Leaves:</span>
          <span class="result-word">tip</span>
          <button class="listen-btn" onclick="playWord(['t','i','p'])">🔊 Play</button>
        </div>
      </div>

    </div>
  </div>

  <script>
    let audioCtx = null;

    function getAudioContext() {
      if (!audioCtx) {
        audioCtx = new (window.AudioContext || window.webkitAudioContext)();
      }
      if (audioCtx.state === 'suspended') {
        audioCtx.resume();
      }
      return audioCtx;
    }

    function playTone(freq, label) {
      try {
        const ctx = getAudioContext();
        const osc = ctx.createOscillator();
        const gain = ctx.createGain();
        osc.type = 'triangle';
        osc.frequency.setValueAtTime(freq, ctx.currentTime);
        gain.gain.setValueAtTime(0.18, ctx.currentTime);
        gain.gain.exponentialRampToValueAtTime(0.001, ctx.currentTime + 0.35);
        osc.connect(gain);
        gain.connect(ctx.destination);
        osc.start();
        osc.stop(ctx.currentTime + 0.35);
      } catch (e) {}
    }

    function playWord(sounds) {
      const freqs = { s: 300, p: 392, t: 330, r: 370, i: 440, n: 523 };
      sounds.forEach((snd, idx) => {
        setTimeout(() => {
          playTone(freqs[snd] || 440, snd);
        }, idx * 160);
      });
    }

    function switchTab(index) {
      const tabOuter = document.getElementById('tabOuter');
      const tabInner = document.getElementById('tabInner');
      const panelOuter = document.getElementById('panelOuter');
      const panelInner = document.getElementById('panelInner');

      if (index === 0) {
        tabOuter.classList.add('active');
        tabInner.classList.remove('active');
        panelOuter.classList.add('active');
        panelInner.classList.remove('active');
      } else {
        tabInner.classList.add('active');
        tabOuter.classList.remove('active');
        panelInner.classList.add('active');
        panelOuter.classList.remove('active');
      }
    }
  </script>
</body>
</html>

OGE.3.RF.1

Aligned learning resources

Related diagrams