diff --git a/docs/superpowers/plans/2026-07-28-rust-async-course.md b/docs/superpowers/plans/2026-07-28-rust-async-course.md
index 1108f2f..b39ea8a 100644
--- a/docs/superpowers/plans/2026-07-28-rust-async-course.md
+++ b/docs/superpowers/plans/2026-07-28-rust-async-course.md
@@ -84,7 +84,7 @@ Para cada capítulo, antes de pasar al siguiente:
 
 - [ ] Capítulo 10: modelo de actores.
   - [x] #34 Especificar propiedad, mensajes, fallas y alternativas.
-  - [ ] #36 Implementar y probar un modelo educativo mínimo.
+  - [x] #36 Implementar y probar un modelo educativo mínimo.
   - [ ] #38 Escribir capítulo, diagrama, ejemplos y ejercicios.
 - [ ] Completar ruta de lectura, glosario, referencias cruzadas y verificación
   final de coherencia del curso.
diff --git a/src/actor_model.rs b/src/actor_model.rs
new file mode 100644
index 0000000..05dacaa
--- /dev/null
+++ b/src/actor_model.rs
@@ -0,0 +1,35 @@
+//! Modelo educativo de un actor que posee un contador.
+
+use tokio::sync::{mpsc, oneshot};
+use tokio::task::JoinHandle;
+
+/// Mensajes que entiende el actor contador.
+pub enum CounterMessage {
+    /// Suma una cantidad al estado que posee el actor.
+    Increment(u64),
+    /// Devuelve el valor observado por el actor al procesar la consulta.
+    Get(oneshot::Sender<u64>),
+}
+
+/// Inicia un actor contador y devuelve su buzón y la tarea que lo ejecuta.
+///
+/// El actor termina al cerrar todos los emisores. `capacity` conserva el
+/// backpressure de un canal acotado.
+#[must_use]
+pub fn spawn_counter(capacity: usize) -> (mpsc::Sender<CounterMessage>, JoinHandle<()>) {
+    let (sender, mut receiver) = mpsc::channel(capacity);
+    let task = tokio::spawn(async move {
+        let mut count = 0_u64;
+
+        while let Some(message) = receiver.recv().await {
+            match message {
+                CounterMessage::Increment(amount) => count += amount,
+                CounterMessage::Get(reply) => {
+                    let _ = reply.send(count);
+                }
+            }
+        }
+    });
+
+    (sender, task)
+}
diff --git a/src/lib.rs b/src/lib.rs
index bb34ad2..4718b8f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -6,6 +6,7 @@
 
 #![forbid(unsafe_code)]
 
+pub mod actor_model;
 pub mod async_channels;
 pub mod cooperative;
 pub mod coordination;
diff --git a/tests/actor_model_test.rs b/tests/actor_model_test.rs
new file mode 100644
index 0000000..59a5c88
--- /dev/null
+++ b/tests/actor_model_test.rs
@@ -0,0 +1,51 @@
+use rust_async::actor_model::{spawn_counter, CounterMessage};
+use tokio::sync::oneshot;
+
+#[tokio::test]
+async fn actor_applies_messages_in_order_and_owns_its_state() {
+    let (sender, task) = spawn_counter(2);
+    sender
+        .send(CounterMessage::Increment(3))
+        .await
+        .expect("actor should accept the message");
+    sender
+        .send(CounterMessage::Increment(4))
+        .await
+        .expect("actor should accept the message");
+
+    let (reply_sender, reply_receiver) = oneshot::channel();
+    sender
+        .send(CounterMessage::Get(reply_sender))
+        .await
+        .expect("actor should accept the query");
+
+    assert_eq!(reply_receiver.await.expect("actor should reply"), 7);
+
+    drop(sender);
+    task.await.expect("actor task should finish cleanly");
+}
+
+#[tokio::test]
+async fn actor_can_reply_to_more_than_one_query() {
+    let (sender, task) = spawn_counter(3);
+    let (first_reply_sender, first_reply_receiver) = oneshot::channel();
+    sender
+        .send(CounterMessage::Get(first_reply_sender))
+        .await
+        .expect("actor should accept the query");
+    assert_eq!(first_reply_receiver.await.expect("actor should reply"), 0);
+
+    sender
+        .send(CounterMessage::Increment(1))
+        .await
+        .expect("actor should accept the message");
+    let (second_reply_sender, second_reply_receiver) = oneshot::channel();
+    sender
+        .send(CounterMessage::Get(second_reply_sender))
+        .await
+        .expect("actor should accept the query");
+    assert_eq!(second_reply_receiver.await.expect("actor should reply"), 1);
+
+    drop(sender);
+    task.await.expect("actor task should finish cleanly");
+}