Many museums have interactive exhibits like the one Scholastic has put up on its website where students are encouraged to learn about lizards and snakes. Created by Dr. Darrel Frost of the American Museum of Natural History, this exhibit introduces students to important vocabulary related to the unit and then introduces students to each of the squamates (scale-covered animals) that will appear in the activity. Students are challenged to learn all they can about each animal and then be able to build an exhibit, using printables to make notes.
There are lesson plans that help put students in the "shoes" of a lizard, such as the unit assembled by AZPARC (Arizona Partners in Amphibian and Reptile Conservation). During the unit, students learn key vocabulary about lizards and observe lizard behavior in and around the school. Then, they learn about the different beings that play roles in a lizard's life, such as the predators that chase them and the prey they like to eat. Afterward, they come up with props that would help them play those different roles in a skit about a lizard's life.
For many students, subjects like mathematics are a struggle. However, if all of the word problems in today's math worksheet are about a subject that a struggling student would enjoy, he's more likely to work diligently on it. EducationWorld is just one website that offers activities in math and other topics geared toward high-interest topics -- like lizards. See resources for a list of Godzilla-related math word problems.
Enchanted Learning offers printable coloring sheets associated with different types of lizards. The purpose of the worksheets isn't just to have kids pass the time by coloring. The black-and-white pages have the important parts of each lizard labeled, so students learn while they are coloring. Several of the lizards on the Enchanted Learning page, including the Komodo dragon and the iguana, also have interactive quizzes for students to try. (See resources).