Matilda Excerpt
By Roald Dahl
By the time she was three, Matilda had taught herself to read by studying newspapers and magazines that lay around the house. At the age of four, she could read fast and well and she naturally began hankering after books. The only book in the whole of this enlightened household was something called Easy Cooking belonging to her mother, and when she had read this from cover to cover and had learnt all the recipes by heart, she decided she wanted something more interesting. "Daddy," she said, "do you think you could buy me a book?" "A book,” he said. "Whatd' you want a flaming book for?" "To read, Daddy." "What's wrong with the telly, for heaven's sake? We've got a lovely telly with a twelve-inch screen and now you come asking for a book! You're getting spoiled, my girl!"
What is the main idea?

Charlie and the Chocolate Factory Excerpt
By Roald Dahl
Charlie Bucket stared around the gigantic room in which he now found himself. The place was like a witch’s kitchen! All about him black metal pots were boiling and bubbling on huge stoves, and kettles were hissing and pans were sizzling,and strange iron machines were clanking and spluttering, and there were pipes running all over the ceiling and walls, and the whole place was filled with smoke and steam and delicious rich smells. Mr. Wonka himself had suddenly become even more excited than usual, and anyone could see that this was the room he loved best of all. He was hopping about among the saucepans and the machines like a child among his Christmas presents, not knowing which thing to look at first. He lifted the lid from a huge pot and took a sniff; then he rushed over and dipped a finger into a barrel of sticky yellow stuff and had a taste; then he skipped across to one of the machine sand turned half a dozen knobs this way and that; then he peered anxiously through the glass door of a gigantic oven,rubbing his hands and cackling with delight at what he saw inside. Then he ran over to another machine, a small shiny affair that kept going phut-phut-phut-phut-phut, and every time it went phut, a large green marble dropped out of it into a basket on the floor.
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Jenny visited her grandmother in the hospital.  She saw how kind and helpful the nurses were to her grandmother.  Now she wants to be a nurse when she grows up.  She wants to help sick people get well. 
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Some people say that the White House has ghosts.  The most famous ghost is Abraham Lincoln.  He is often seen standing in his room looking out the window.  Even Eleanor Roosevelt said that she saw him.  There is a legend that old Abe walks back and forth all night before something terrible is about to happen.  This paragraph mainly tells:

I can't wait until this weekend! We’re going to my grandparents’ house and my entire family will be there. I will spend most of my time playing games with my cousins. We always have such a good time together! The day goes by so fast, and by the end we are all exhausted... but we still don’t want to leave!
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If you are feeling sad, you can make yourself feel better by doing a few simple things. You can take a walk (or get another form of exercise), you can talk to a friend, or you can write down your feelings. Writing down the good things in your life will help too. Doing something good for someone else will also help you feel better. If you still feel a little sad, act happy. It works like magic to make you feel better!
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Floods can cause tremendous damage.  They can ruin houses, roads and buildings. Floods can take down trees and cause mudslides. It often leaves mud, sand and debris behind.  It can take months to clean up after a flood.

Mary has a new pet.  Her pet is a baby kitten.  It is soft and cuddly.  The kitten likes to sleep a lot.  Mary put a soft blanket in a box for its bed.  Mary plays with her kitten when it is awake.  She never forgets to feed her kitten.
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It was backward day at school.  The students had to do things backward.  Some of them wore their T-shirts backward.  They took a test before they studied the lesson.  Dessert was served first instead of last.  They tried to walk home backward, but they bumped into each other and fell down. 
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Mark wanted to be a great skater. But he didn't want to spend the hours practicing. He wished he could just do the tricks easily. Mark's dream was to have everyone stop and stare when he entered the skate park. He  wanted them to say, "Mark is the best skater in the whole world."
What is the main idea?

The reader should determine the main idea BEFORE reading the passage.

What is the best question to ask yourself when you are trying to find the main idea?