1. **Problem:** Draw **$A$ or $B$**. 2. **Formula used:** In set notation, **“or”** means the **union**: $$A\cup B$$. 3. **Important rule:** The union includes everything in **$A$**, everything in **$B$**, and anything that appears in **both**. 4. **Conclusion:** The drawing for **$A$ or $B$** is a Venn diagram with **both circles shaded**, including the overlap.