It's important to note that the exact number of tectonic plates is a bit debated, and some sources might list more or fewer than 12. However, here are 12 major tectonic plates and their general locations on a global map:

1. North American Plate: Covers North America, Greenland, and parts of the North Atlantic Ocean.

2. South American Plate: Covers South America and parts of the South Atlantic Ocean.

3. Eurasian Plate: Covers Europe, Asia (excluding India), and parts of the Atlantic and Arctic Oceans.

4. African Plate: Covers Africa, Madagascar, and parts of the Atlantic and Indian Oceans.

5. Indo-Australian Plate: Covers India, Australia, and parts of the Indian and Pacific Oceans.

6. Pacific Plate: Covers the majority of the Pacific Ocean basin.

7. Antarctic Plate: Covers Antarctica and the surrounding ocean floor.

8. Nazca Plate: Located off the west coast of South America, subducting beneath the South American Plate.

9. Cocos Plate: Located off the west coast of Central America, subducting beneath the North American Plate.

10. Caribbean Plate: Covers the Caribbean Sea and surrounding islands.

11. Philippine Sea Plate: Located east of the Philippines, subducting beneath the Eurasian Plate.

12. Arabian Plate: Covers the Arabian Peninsula and parts of the Red Sea and the Indian Ocean.

Note: This is a simplification. There are many smaller microplates and fragments that are also important to understanding the Earth's tectonic system.

You can find maps illustrating the tectonic plates and their boundaries online or in textbooks. They often use different colors for each plate and show the plate boundaries (where plates interact) with lines representing divergent, convergent, and transform boundaries.