Three reading comprehensions (Your Respiratory System, Diseases of the Respiratory System, Take Care of your Respiratory System) clearly and simply explain how the respiratory system works and how to keep it working.
In this creative unit, Katie gets a postcard from a pen pal in nearly every South American country. Each postcard contains a few facts about the country. This unit can be used in a variety of fun ways to introduce South America. Review questions include map labeling, comprehension questions, creative writing, and more.