diff --git a/class_manager.js b/class_manager.js
new file mode 100644
index 0000000..6ca3629
--- /dev/null
+++ b/class_manager.js
@@ -0,0 +1,85 @@
+// class_manager.js – Handles teacher class sessions and progress aggregation
+
+const CLASS_SESSIONS_KEY = 'learnsphere_class_sessions_v1';
+
+function _loadClasses() {
+  try {
+    const raw = localStorage.getItem(CLASS_SESSIONS_KEY);
+    return raw ? JSON.parse(raw) : [];
+  } catch (e) {
+    console.warn('LearnSphere: Failed to load class sessions', e);
+    return [];
+  }
+}
+
+function _saveClasses(classes) {
+  try {
+    localStorage.setItem(CLASS_SESSIONS_KEY, JSON.stringify(classes));
+  } catch (e) {
+    console.warn('LearnSphere: Failed to save class sessions', e);
+  }
+}
+
+function generateInviteCode(length = 6) {
+  const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
+  let code = '';
+  for (let i = 0; i < length; i++) {
+    code += chars.charAt(Math.floor(Math.random() * chars.length));
+  }
+  return code;
+}
+
+function createClassSession({ name, topics = [], dueDate }) {
+  const classes = _loadClasses();
+  const id = 'cls_' + Date.now();
+  const inviteCode = generateInviteCode();
+  const newClass = {
+    id,
+    name,
+    inviteCode,
+    topics,
+    dueDate: dueDate || null,
+    attempts: [], // each { studentId, quizId, score }
+    createdAt: new Date().toISOString()
+  };
+  classes.push(newClass);
+  _saveClasses(classes);
+  return newClass;
+}
+
+function recordClassAttempt(classId, { studentId = 'anonymous', quizId, score }) {
+  if (!classId) return;
+  const classes = _loadClasses();
+  const cls = classes.find(c => c.id === classId);
+  if (!cls) return;
+  cls.attempts.push({ studentId, quizId, score, timestamp: Date.now() });
+  _saveClasses(classes);
+}
+
+function getClassStats(classId) {
+  const classes = _loadClasses();
+  const cls = classes.find(c => c.id === classId);
+  if (!cls) return null;
+  const total = cls.attempts.length;
+  const avgScore = total ? (cls.attempts.reduce((a, b) => a + b.score, 0) / total).toFixed(2) : '-';
+  const bestScore = total ? Math.max(...cls.attempts.map(a => a.score)).toFixed(2) : '-';
+  return { ...cls, totalAttempts: total, avgScore, bestScore };
+}
+
+function getAllClassStats() {
+  const classes = _loadClasses();
+  return classes.map(c => {
+    const total = c.attempts.length;
+    const avgScore = total ? (c.attempts.reduce((a, b) => a + b.score, 0) / total).toFixed(2) : '-';
+    const bestScore = total ? Math.max(...c.attempts.map(a => a.score)).toFixed(2) : '-';
+    return { id: c.id, name: c.name, inviteCode: c.inviteCode, totalAttempts: total, avgScore, bestScore };
+  });
+}
+
+// Expose globally for other modules
+window.classManager = {
+  createClassSession,
+  recordClassAttempt,
+  getClassStats,
+  getAllClassStats
+};
diff --git a/parents.html b/parents.html
index af40d12..42d5441 100644
--- a/parents.html
+++ b/parents.html
@@ -131,6 +131,7 @@ <h2 style="margin-top:0">Topic-wise performance</h2>
     <script src="progress.js"></script>
     <script src="quizProgress.js"></script>
     <script src="dashboardProgress.js"></script>
+    <script src="weeklyReport.js"></script>
 </body>
 </html>
 
diff --git a/teachers.html b/teachers.html
index 34daea8..b1c6da6 100644
--- a/teachers.html
+++ b/teachers.html
@@ -72,6 +72,8 @@ <h1>Empowering Teachers</h1>
         </div>
         <div class="hero-image">
             <img src="images/teacher.jpeg" alt="Teacher guiding students">
+            <button id="createClassBtn" style="margin-top:12px;background:var(--accent-color);color:#fff;padding:10px 16px;border:none;border-radius:8px;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,0.2);transition:transform 0.2s;" onmouseover="this.style.transform='scale(1.05)'" onmouseout="this.style.transform='scale(1)'">Create Class</button>
+            <div id="leaderboardContainer" style="margin-top:24px;"></div>
         </div>
     </section>
 
diff --git a/weeklyReport.js b/weeklyReport.js
new file mode 100644
index 0000000..e446d78
--- /dev/null
+++ b/weeklyReport.js
@@ -0,0 +1,118 @@
+// weeklyReport.js — Parent Weekly Summary
+// Generates a concise weekly overview: streak, top strengths, and areas to improve.
+// Assumes window.quizProgress and window.studyProgress are already loaded.
+
+(function () {
+  /** Helper: map skillId → human readable label */
+  const _skillLabelMap = (() => {
+    const map = {};
+    if (window.quizProgress && window.quizProgress.SKILL_TAXONOMY) {
+      Object.values(window.quizProgress.SKILL_TAXONOMY).forEach(t => {
+        if (t && t.skillId) map[t.skillId] = t.label;
+      });
+    }
+    return map;
+  })();
+
+  function _updateStreak() {
+    const streakEl = document.getElementById('streakValue');
+    if (!streakEl) return;
+    let streak = null;
+    if (window.studyProgress && typeof window.studyProgress.loadStreakState === 'function') {
+      const state = window.studyProgress.loadStreakState();
+      streak = state.currentStreak;
+    } else if (window.quizProgress && typeof window.quizProgress.getStreak === 'function') {
+      streak = window.quizProgress.getStreak().currentStreak;
+    }
+    streakEl.textContent = streak !== null && streak !== undefined ? streak : '—';
+  }
+
+  /** Render top strength skills (high accuracy, enough attempts) */
+  function _renderStrengths() {
+    const container = document.getElementById('masterySkillsList');
+    if (!container) return;
+    const mastery = (window.quizProgress && typeof window.quizProgress.getMasteryStats === 'function')
+      ? window.quizProgress.getMasteryStats()
+      : {};
+    const strengths = Object.entries(mastery)
+      .filter(([, m]) => m.attempts && m.attempts >= 3)
+      .map(([skillId, m]) => ({
+        skillId,
+        attempts: m.attempts,
+        correct: m.correct,
+        accuracy: m.attempts ? m.correct / m.attempts : 0,
+        label: _skillLabelMap[skillId] || skillId,
+      }))
+      .sort((a, b) => b.accuracy - a.accuracy)
+      .slice(0, 3);
+
+    container.innerHTML = '';
+    if (strengths.length === 0) {
+      const empty = document.createElement('div');
+      empty.textContent = 'No strength data yet.';
+      container.appendChild(empty);
+      return;
+    }
+    strengths.forEach(s => {
+      const card = document.createElement('div');
+      card.style.display = 'flex';
+      card.style.justifyContent = 'space-between';
+      card.style.padding = '4px 0';
+
+      const label = document.createElement('span');
+      label.textContent = s.label;
+      label.style.fontWeight = '500';
+      const info = document.createElement('span');
+      const pct = Math.round(s.accuracy * 100);
+      info.textContent = `${pct}% (${s.attempts} attempts)`;
+      info.style.color = 'var(--text-muted)';
+
+      card.appendChild(label);
+      card.appendChild(info);
+      container.appendChild(card);
+    });
+  }
+
+  /** Render weak concepts (recommended focus) */
+  function _renderWeaknesses() {
+    const container = document.getElementById('weakSkillsRecommendations');
+    if (!container) return;
+    const weak = (window.quizProgress && typeof window.quizProgress.getWeakestSkills === 'function')
+      ? window.quizProgress.getWeakestSkills({ limit: 3 })
+      : [];
+
+    container.innerHTML = '';
+    if (weak.length === 0) {
+      const empty = document.createElement('div');
+      empty.textContent = 'No weak concepts identified yet.';
+      container.appendChild(empty);
+      return;
+    }
+    weak.forEach(w => {
+      const card = document.createElement('div');
+      card.style.display = 'flex';
+      card.style.justifyContent = 'space-between';
+      card.style.padding = '4px 0';
+
+      const label = document.createElement('span');
+      label.textContent = w.label;
+      label.style.fontWeight = '500';
+      const info = document.createElement('span');
+      const pct = w.accuracy !== null ? Math.round(w.accuracy * 100) : 'N/A';
+      info.textContent = `${pct}% (${w.attempts} attempts)`;
+      info.style.color = 'var(--text-muted)';
+
+      card.appendChild(label);
+      card.appendChild(info);
+      container.appendChild(card);
+    });
+  }
+
+  function _renderWeeklyReport() {
+    _updateStreak();
+    _renderStrengths();
+    _renderWeaknesses();
+  }
+
+  document.addEventListener('DOMContentLoaded', _renderWeeklyReport);
+})();