If you removed a sentence from this paragraph, how would it change the meaning? Before applying the screen protector, clean the surface of your phone’s screen with a soft cloth.  Once the surface of your screen is clean, remove the paper backing on the screen protector.  Evenly apply the sticky side of the screen protector to your phone’s screen.  Smooth out any air bubble trapped on between the protector and the phone screen.  Enjoy the added protection.

How does the UNDERLINDED sentence add to the purpose of the paragraph? Dr. Miller doesn’t want the tigers to vanish.  These majestic beasts are disappearing at an alarming rate.  Dr. Miller thinks that we should write to our congress people.  If we let them know that we demand the preservation of this species, maybe we can make a difference.  Dr. Miller also thinks that we should donate to Save the Tigers.  Our donations will help to support and empower those who are fighting the hardest to preserve the tigers.  We owe it to our grandchildren to do something.

What is the text structure AND how do you know? Many people are confused about why our economy went to shambles in 2008.  The crisis was actually the result of a combination of many complex factors.  First, easy credit conditions allowed people who were high-risk or unworthy of credit to borrow, and even people who had no income were eligible for large loans.  Second, banks would bundle these toxic loans and sell them as packages on the financial market. Third, large insurance firms backed these packages, misrepresenting these high-risk loans as safe investments.  Fourth, because of the ease of acquiring credit and the rapid growth in the housing market, people were buying two or three houses, intending to sell them for more than they paid.  All of these factors created bubbles of speculation.  These bubbles burst, sending the whole market into a downward spiral, causing employers to lose capital and lay off employees.  Consumer spending then plummeted and most businesses suffered.  The economy is like a big boat, and once it gets moving quickly in the wrong direction, it’s hard to turn it around. 

What is the main idea of this passage? All matter, all things can be changed in two ways: chemically and physically.  Both chemical and physical changes affect the state of matter.  Physical changes are those that do not change the make-up or identity of the matter. For example, clay will bend or flatten if squeezed, but it will still be clay.  Changing the shape of clay is a physical change, and does not change the matter’s identity.  Chemical changes turn the matter into a new kind of matter with different properties. For example, when paper is burnt, it becomes ash and will never be paper again.  The difference between them is that physical changes are temporary or only last for a little while, and chemical changes are permanent, which means they last forever.  Physical and chemical changes both affect the state of matter.