diff --git a/v2/e2e/frontend-only.spec.ts b/v2/e2e/frontend-only.spec.ts
index 7236e07..507b267 100644
--- a/v2/e2e/frontend-only.spec.ts
+++ b/v2/e2e/frontend-only.spec.ts
@@ -29,6 +29,7 @@ test("frontend sandbox keeps the current student UI without backend calls", asyn
 
   await expect(page.getByText("Sandbox local de Aula 3.0")).toBeVisible();
   await page.getByRole("button", { name: "Ver interfaz de estudiante" }).click();
+  await page.getByRole("button", { name: "Omitir", exact: true }).click();
   await expect(
     page.getByText("Vista para contribuir al frontend"),
   ).toBeVisible();
@@ -66,6 +67,7 @@ test("frontend sandbox renders rewards while keeping redemptions disabled", asyn
   const backendRequests = watchBackendRequests(page);
   await page.goto("./");
   await page.getByRole("button", { name: "Ver interfaz de estudiante" }).click();
+  await page.getByRole("button", { name: "Omitir", exact: true }).click();
   await page.getByRole("link", { name: "Premios" }).click();
   await expect(
     page.getByRole("heading", { name: "Premios", exact: true }),
@@ -80,6 +82,7 @@ test("frontend sandbox displays mentor controls but blocks mutations", async ({
   const backendRequests = watchBackendRequests(page);
   await page.goto("./");
   await page.getByRole("button", { name: "Ver panel del mentor" }).click();
+  await page.getByRole("button", { name: "Entendido" }).click();
   await expect(
     page.getByRole("heading", { name: "Panel de eeminionn" }),
   ).toBeVisible();
@@ -109,6 +112,7 @@ test("frontend sandbox remains usable on a narrow viewport", async ({ page }) =>
   await page.setViewportSize({ width: 360, height: 800 });
   await page.goto("./");
   await page.getByRole("button", { name: "Ver interfaz de estudiante" }).click();
+  await page.getByRole("button", { name: "Omitir", exact: true }).click();
 
   await expect(
     page.getByText("Vista para contribuir al frontend"),
diff --git a/v2/e2e/mentor.spec.ts b/v2/e2e/mentor.spec.ts
index 704bc6f..a5af011 100644
--- a/v2/e2e/mentor.spec.ts
+++ b/v2/e2e/mentor.spec.ts
@@ -3,6 +3,10 @@ import { expect, test, type Page } from "@playwright/test";
 async function loginAsMentor(page: Page) {
   await page.goto("./");
   await page.getByRole("button", { name: "Entrar como eeminionn" }).click();
+  const guide = page.getByRole("dialog", { name: "Lo esencial está en un solo lugar" });
+  if (await guide.waitFor({ state: "visible", timeout: 2_000 }).then(() => true).catch(() => false)) {
+    await guide.getByRole("button", { name: "Entendido" }).click();
+  }
   await expect(
     page.getByRole("heading", { name: "Panel de eeminionn" }),
   ).toBeVisible();
@@ -72,6 +76,16 @@ test("mentor overview prioritizes actions without duplicate navigation", async (
   await expect(page.getByText("Ver más indicadores")).toBeVisible();
 });
 
+test("mentor can reopen the classroom preparation summary", async ({ page }) => {
+  await loginAsMentor(page);
+  await page.getByRole("button", { name: "Abrir guía rápida" }).click();
+  const guide = page.getByRole("dialog", {
+    name: "Lo esencial está en un solo lugar",
+  });
+  await expect(guide.getByText("Hay estudiantes en el curso")).toBeVisible();
+  await expect(guide.getByText("Hay al menos una tarea publicada")).toBeVisible();
+});
+
 test("mentor creates an assignment for selected students", async ({ page }) => {
   await loginAsMentor(page);
   await page.getByRole("link", { name: "Tareas", exact: true }).click();
@@ -93,6 +107,7 @@ test("mentor creates a reward and fulfills a student redemption", async ({
 }) => {
   await page.goto("./");
   await page.getByRole("button", { name: "Entrar como estudiante" }).click();
+  await page.getByRole("button", { name: "Omitir", exact: true }).click();
   await page.getByRole("link", { name: "Premios" }).click();
   const reward = page.locator(".reward-card").filter({ hasText: "Pista extra" });
   await reward.getByRole("button", { name: "Canjear" }).click();
@@ -104,6 +119,7 @@ test("mentor creates a reward and fulfills a student redemption", async ({
   await page.getByRole("menuitem", { name: "Cerrar sesión" }).click();
 
   await page.getByRole("button", { name: "Entrar como eeminionn" }).click();
+  await page.getByRole("button", { name: "Entendido" }).click();
   await page.getByRole("link", { name: "Premios", exact: true }).click();
   const redemption = page
     .locator(".redemption-admin-row")
diff --git a/v2/e2e/mobile.spec.ts b/v2/e2e/mobile.spec.ts
index 9de8c4e..97625f4 100644
--- a/v2/e2e/mobile.spec.ts
+++ b/v2/e2e/mobile.spec.ts
@@ -5,6 +5,7 @@ test("mobile navigation and workspace remain inside the viewport", async ({
 }) => {
   await page.goto("./");
   await page.getByRole("button", { name: "Entrar como estudiante" }).click();
+  await page.getByRole("button", { name: "Omitir", exact: true }).click();
   await expect(
     page.getByRole("heading", { name: "Tienes 3 tareas pendientes" }),
   ).toBeVisible();
@@ -46,6 +47,7 @@ test("mobile rewards keep cards and confirmation inside the viewport", async ({
 }) => {
   await page.goto("./");
   await page.getByRole("button", { name: "Entrar como estudiante" }).click();
+  await page.getByRole("button", { name: "Omitir", exact: true }).click();
   await page.getByRole("button", { name: "Abrir navegación" }).click();
   await page.getByRole("link", { name: "Premios" }).click();
   await expect(
diff --git a/v2/e2e/student.spec.ts b/v2/e2e/student.spec.ts
index af7e384..5ba9135 100644
--- a/v2/e2e/student.spec.ts
+++ b/v2/e2e/student.spec.ts
@@ -4,6 +4,18 @@ import AxeBuilder from "@axe-core/playwright";
 test.beforeEach(async ({ page }) => {
   await page.goto("./");
   await page.getByRole("button", { name: "Entrar como estudiante" }).click();
+  await page.getByRole("button", { name: "Omitir", exact: true }).click();
+  await expect(page.getByRole("heading", { name: /Hola, Camila/ })).toBeVisible();
+});
+
+test("student can reopen the short getting started guide", async ({ page }) => {
+  await page.getByRole("button", { name: "Abrir guía rápida" }).click();
+  await expect(page.getByRole("heading", { name: "Abre tu próxima tarea" })).toBeVisible();
+  await page.getByRole("button", { name: "Siguiente" }).click();
+  await expect(page.getByRole("heading", { name: "Ejecuta antes de entregar" })).toBeVisible();
+  await page.getByRole("button", { name: "Siguiente" }).click();
+  await expect(page.getByRole("heading", { name: "Entrega y espera feedback" })).toBeVisible();
+  await page.getByRole("button", { name: "Ir a mis tareas" }).click();
   await expect(page.getByRole("heading", { name: /Hola, Camila/ })).toBeVisible();
 });
 
diff --git a/v2/src/components/AppShell.tsx b/v2/src/components/AppShell.tsx
index 7a8479c..e18a181 100644
--- a/v2/src/components/AppShell.tsx
+++ b/v2/src/components/AppShell.tsx
@@ -1,9 +1,10 @@
-import { useState } from "react";
+import { useEffect, useState } from "react";
 import {
   Bell,
   BookCopy,
   BookOpen,
   CalendarPlus,
+  CircleHelp,
   ChevronDown,
   ClipboardCheck,
   Eye,
@@ -28,6 +29,10 @@ import {
   useNavigate,
 } from "react-router-dom";
 import { ProfileAvatar } from "@/components/ProfileAvatar";
+import {
+  GettingStarted,
+  shouldOpenGettingStarted,
+} from "@/components/GettingStarted";
 import { getPendingReviews } from "@/models/reviews";
 import { useClassroom } from "@/state/classroom-context";
 
@@ -68,6 +73,7 @@ export function AppShell() {
   const [profileOpen, setProfileOpen] = useState(false);
   const [previewOpen, setPreviewOpen] = useState(false);
   const [selectedStudentId, setSelectedStudentId] = useState("");
+  const [guideOpen, setGuideOpen] = useState(false);
   const location = useLocation();
   const navigate = useNavigate();
   const unread =
@@ -84,6 +90,12 @@ export function AppShell() {
     snapshot?.profiles.filter((entry) => entry.role === "student") ?? [];
   const pendingReviews = snapshot ? getPendingReviews(snapshot).length : 0;
 
+  useEffect(() => {
+    if (profile && !isStudentPreview && shouldOpenGettingStarted(profile.id)) {
+      setGuideOpen(true);
+    }
+  }, [isStudentPreview, profile]);
+
   return (
     <div className={`app-shell ${frontendOnly ? "frontend-only" : ""}`}>
       <aside
@@ -215,6 +227,17 @@ export function AppShell() {
             </span>
           </div>
           <div className="topbar-actions">
+            {!isStudentPreview ? (
+              <button
+                className="icon-button"
+                type="button"
+                aria-label="Abrir guía rápida"
+                title="Guía rápida"
+                onClick={() => setGuideOpen(true)}
+              >
+                <CircleHelp aria-hidden="true" />
+              </button>
+            ) : null}
             {isStudentPreview ? (
               <div className="preview-indicator" role="status">
                 <Eye aria-hidden="true" />
@@ -369,6 +392,7 @@ export function AppShell() {
         ) : null}
         <Outlet />
       </div>
+      <GettingStarted open={guideOpen} onClose={() => setGuideOpen(false)} />
     </div>
   );
 }
diff --git a/v2/src/components/GettingStarted.tsx b/v2/src/components/GettingStarted.tsx
new file mode 100644
index 0000000..9432f8b
--- /dev/null
+++ b/v2/src/components/GettingStarted.tsx
@@ -0,0 +1,130 @@
+import { useEffect, useState } from "react";
+import {
+  ArrowRight,
+  Check,
+  CheckCircle2,
+  ClipboardCheck,
+  Play,
+  Send,
+  Users,
+  X,
+} from "lucide-react";
+import { useClassroom } from "@/state/classroom-context";
+
+const GUIDE_VERSION = 1;
+
+function storageKey(userId: string) {
+  return `tomatin.guide.${userId}.v${GUIDE_VERSION}`;
+}
+
+export function GettingStarted({ open, onClose }: { open: boolean; onClose: () => void }) {
+  const { profile, snapshot, isStudentPreview } = useClassroom();
+  const [step, setStep] = useState(0);
+  const isStaff = profile?.role === "owner" || profile?.role === "mentor";
+
+  useEffect(() => {
+    if (open) setStep(0);
+  }, [open]);
+
+  if (!open || !profile || !snapshot || isStudentPreview) return null;
+
+  function finish() {
+    localStorage.setItem(storageKey(profile!.id), "done");
+    onClose();
+  }
+
+  if (isStaff) {
+    const students = snapshot.profiles.filter((entry) => entry.role === "student");
+    const published = snapshot.assignments.filter((entry) => entry.status === "published");
+    const notificationReady = snapshot.githubNotifications.some(
+      (entry) => entry.status === "sent" || entry.status === "partial",
+    );
+    const checks = [
+      { label: "Hay estudiantes en el curso", done: students.length > 0 },
+      { label: "Hay al menos una tarea publicada", done: published.length > 0 },
+      { label: "Los avisos de GitHub tuvieron una prueba exitosa", done: notificationReady },
+    ];
+
+    return (
+      <div className="dialog-backdrop getting-started-backdrop" role="presentation">
+        <section className="getting-started" role="dialog" aria-modal="true" aria-labelledby="getting-started-title">
+          <button className="icon-button getting-started-close" type="button" aria-label="Cerrar guía" onClick={finish}>
+            <X aria-hidden="true" />
+          </button>
+          <span className="getting-started-icon"><ClipboardCheck aria-hidden="true" /></span>
+          <p className="eyebrow">PREPARAR EL AULA</p>
+          <h2 id="getting-started-title">Lo esencial está en un solo lugar</h2>
+          <p>Este resumen se actualiza solo. No necesitas configurar nada desde aquí.</p>
+          <ul className="setup-checklist">
+            {checks.map((entry) => (
+              <li className={entry.done ? "is-done" : ""} key={entry.label}>
+                {entry.done ? <CheckCircle2 aria-hidden="true" /> : <span aria-hidden="true" />}
+                <strong>{entry.label}</strong>
+                <small>{entry.done ? "Listo" : "Pendiente"}</small>
+              </li>
+            ))}
+          </ul>
+          <div className="getting-started-tip">
+            <Users aria-hidden="true" />
+            <span><strong>Tu rutina</strong> Revisa entregas, crea tareas y mira alertas desde el panel.</span>
+          </div>
+          <button className="button primary wide" type="button" onClick={finish}>
+            Entendido <Check aria-hidden="true" />
+          </button>
+        </section>
+      </div>
+    );
+  }
+
+  const steps = [
+    {
+      icon: ArrowRight,
+      title: "Abre tu próxima tarea",
+      body: "En Tareas siempre verás primero lo que debes resolver y cuándo vence.",
+    },
+    {
+      icon: Play,
+      title: "Ejecuta antes de entregar",
+      body: "Prueba tu código. El panel de resultados te dirá qué salió bien y qué revisar.",
+    },
+    {
+      icon: Send,
+      title: "Entrega y espera feedback",
+      body: "Tu profesor revisará la solución. Si pide cambios, tu código seguirá guardado.",
+    },
+  ];
+  const current = steps[step];
+  const Icon = current.icon;
+
+  return (
+    <div className="dialog-backdrop getting-started-backdrop" role="presentation">
+      <section className="getting-started" role="dialog" aria-modal="true" aria-labelledby="getting-started-title">
+        <button className="icon-button getting-started-close" type="button" aria-label="Omitir guía" onClick={finish}>
+          <X aria-hidden="true" />
+        </button>
+        <span className="getting-started-icon"><Icon aria-hidden="true" /></span>
+        <p className="eyebrow">PRIMEROS PASOS · {step + 1} DE {steps.length}</p>
+        <h2 id="getting-started-title">{current.title}</h2>
+        <p>{current.body}</p>
+        <div className="guide-progress" aria-label={`Paso ${step + 1} de ${steps.length}`}>
+          {steps.map((entry, index) => <span className={index <= step ? "is-active" : ""} key={entry.title} />)}
+        </div>
+        <div className="getting-started-actions">
+          <button className="button ghost" type="button" onClick={finish}>Omitir</button>
+          <button
+            className="button primary"
+            type="button"
+            onClick={() => step === steps.length - 1 ? finish() : setStep((value) => value + 1)}
+          >
+            {step === steps.length - 1 ? "Ir a mis tareas" : "Siguiente"}
+            {step === steps.length - 1 ? <Check aria-hidden="true" /> : <ArrowRight aria-hidden="true" />}
+          </button>
+        </div>
+      </section>
+    </div>
+  );
+}
+
+export function shouldOpenGettingStarted(userId: string) {
+  return localStorage.getItem(storageKey(userId)) !== "done";
+}
diff --git a/v2/src/styles.css b/v2/src/styles.css
index bec2bbd..55ef72f 100644
--- a/v2/src/styles.css
+++ b/v2/src/styles.css
@@ -5773,6 +5773,137 @@ fieldset legend {
   grid-column: 1 / -1;
 }
 
+.getting-started-backdrop {
+  z-index: 80;
+}
+
+.getting-started {
+  position: relative;
+  width: min(460px, calc(100vw - 28px));
+  padding: 30px;
+  border: 1px solid var(--line-strong);
+  border-radius: var(--radius);
+  background: var(--panel-strong);
+  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
+}
+
+.getting-started-close {
+  position: absolute;
+  top: 12px;
+  right: 12px;
+}
+
+.getting-started-icon {
+  display: grid;
+  width: 48px;
+  height: 48px;
+  margin-bottom: 18px;
+  place-items: center;
+  border: 1px solid rgba(103, 232, 165, 0.3);
+  border-radius: 5px;
+  color: var(--green);
+  background: rgba(103, 232, 165, 0.08);
+}
+
+.getting-started-icon svg {
+  width: 23px;
+}
+
+.getting-started h2 {
+  margin: 6px 0 9px;
+  font-size: 23px;
+}
+
+.getting-started > p:not(.eyebrow) {
+  margin: 0 0 20px;
+  color: var(--muted-strong);
+  line-height: 1.55;
+}
+
+.guide-progress {
+  display: grid;
+  gap: 6px;
+  margin: 22px 0;
+  grid-template-columns: repeat(3, 1fr);
+}
+
+.guide-progress span {
+  height: 3px;
+  background: var(--line-strong);
+}
+
+.guide-progress span.is-active {
+  background: var(--green);
+}
+
+.getting-started-actions {
+  display: flex;
+  justify-content: space-between;
+  gap: 10px;
+}
+
+.setup-checklist {
+  display: grid;
+  gap: 7px;
+  margin: 0 0 14px;
+  padding: 0;
+  list-style: none;
+}
+
+.setup-checklist li {
+  display: grid;
+  min-height: 46px;
+  align-items: center;
+  gap: 9px;
+  padding: 8px 10px;
+  border: 1px solid var(--line);
+  grid-template-columns: 18px minmax(0, 1fr) auto;
+}
+
+.setup-checklist li > svg,
+.setup-checklist li > span:first-child {
+  width: 16px;
+  height: 16px;
+  border: 1px solid var(--line-strong);
+  border-radius: 50%;
+}
+
+.setup-checklist li.is-done > svg {
+  border: 0;
+  color: var(--green);
+}
+
+.setup-checklist strong,
+.setup-checklist small {
+  font-size: 9px;
+}
+
+.setup-checklist small {
+  color: var(--yellow);
+}
+
+.setup-checklist .is-done small {
+  color: var(--green);
+}
+
+.getting-started-tip {
+  display: flex;
+  align-items: start;
+  gap: 9px;
+  margin: 14px 0 20px;
+  padding: 10px;
+  color: var(--muted-strong);
+  background: rgba(101, 201, 232, 0.055);
+  font-size: 9px;
+  line-height: 1.5;
+}
+
+.getting-started-tip svg {
+  width: 16px;
+  flex: 0 0 auto;
+  color: var(--cyan);
+}
+
 .rewards-header {
   align-items: center;
 }