diff --git a/Md03_Dev_Back_end/Bloco26/26.1/conteudo001.ts b/Md03_Dev_Back_end/Bloco26/26.1/conteudo001.ts
new file mode 100644
index 00000000..d0fd5847
--- /dev/null
+++ b/Md03_Dev_Back_end/Bloco26/26.1/conteudo001.ts
@@ -0,0 +1,33 @@
+class Person {
+  name: string;
+  height: number;
+  weight: number;
+
+  constructor(n: string, h: number, w: number) {
+    console.log(`Creating person ${n}`);
+    this.name = n;
+    this.height = h;
+    this.weight = w;
+  }
+
+  sleep() {
+    console.log(`${this.name}: zzzzzzz`);
+  }
+}
+
+const p1 = new Person('Maria', 171, 58);
+const p2 = new Person('João', 175, 66);
+console.log(p1.name, p1.height, p1.weight);
+console.log(p2.name, p2.height, p2.weight);
+p1.sleep();
+p2.sleep();
+
+/*
+Saída:
+Creating person Maria
+Creating person João
+Maria 171 58
+João 175 66
+Maria: zzzzzzz
+João: zzzzzzz
+*/
\ No newline at end of file
diff --git a/Md03_Dev_Back_end/Bloco26/26.1/conteudo002.ts b/Md03_Dev_Back_end/Bloco26/26.1/conteudo002.ts
new file mode 100644
index 00000000..ca518491
--- /dev/null
+++ b/Md03_Dev_Back_end/Bloco26/26.1/conteudo002.ts
@@ -0,0 +1,22 @@
+class Tv {
+  private brand: string;
+  private size: number;
+  private resolution: number;
+  private connections: string;
+  private connectedTo?: boolean;
+
+  constructor(brand: string, size: number, resolution: number, connections: string) {
+    this.brand = brand;
+    this.size = size;
+    this.resolution= resolution;
+    this.connections = connections;
+  }
+
+  public turnOn() {
+    return `brand: ${this.brand}, size: ${this.size}, resolution: ${this.resolution}, connections: ${this.connections}`
+  }
+}
+
+const minhaTv = new Tv('mike', 10, 140, 'sóuma');
+
+console.log(minhaTv.turnOn());