Set up a Jeopardy! board in the front of the classroom and require students to answer in Jeopardy! style. You could also just divide the class up into two or more groups, depending upon the number of students, and have them answer trivia questions. Use this method as a way to prepare students for an examination on gazelles or animals in general. Award a small prize, such as bonus points on the test, to the winning team.
Create or purchase a puzzle of a gazelle from a local teacher supply store or a toy store or online (see resources). Distribute one small puzzle to each of the students in the class. Have the students race one another to see who is able to complete the puzzle in the shortest amount of time. Buy more complex puzzles for older grade levels.
Distribute a coloring page with a gazelle on it to younger students. Allow more artistically advanced students to create their own gazelles. You might want to assign them a specific method or allow them to choose what they want to do. Some might opt to trace a picture out of a magazine or book, while others might use the easel and watercolors to create an original painting of one or several gazelles.
Instead of having the students operate with a flat surface, ask them to create a three-dimensional representation of a gazelle. Ask more advanced students to create a scale model out of clay and to include the scale with the depiction. Other suggestions include creative clay models that do not follow a scale, using blocks to create a depiction of a gazelle or using a beading kit to mold a three-dimensional gazelle together.