Andrew worked hard to fulfill his many responsibilities. With all the extra classes he took after school and all the sports he played on weekends, he had to keep a rigorous schedule.
Dictionary
rigorous (rig uhruhs) adj. 1. strict or harsh 2. exact or accurate
When Yolanda first read this paragraph, she thought rigorous meant "balanced."
Based on the paragraph and the dictionary entry, was Yolanda correct?

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were a wealthy people. they needed some way to keep track of what they owned. they began drawing pictures. they used a reed as a pen. they drew on soft pieces of clay. the soft clay was then dried in the sun. the tablet became a permanent record. later, the sumerian drawings changed into wedge-shaped symbols. this kind of writing is called cuneiform. by putting symbols together, the sumerians could write entire sentences.