This is lesson teaches all about mammals in Spanish!
There is no English it is all Spanish.
What is a mammal and how are mammals classified?
Do you know all mammals give birth to live young with one exception?
Do you know what that exception is?
You will after you finish teaching this lesson.
Why are whales classified as mammals?
Where do scientist believe whales originated from?
You will know the answers to all these questions plus much more when you teach this lesson.
Your students will be a lot wiser because you taught them this lesson!
Have fun learning!