However, not all parts of a rock undergo expansion and contraction at the same rate, resulting in the formation of cracks. Gradually, these cracks cause the rocks to break down into smaller pieces. With time, these smaller pieces convert into particles and form soil. Water plays an important role in soil formation. Water that gets collected in the cracks of rocks sometimes freezes, which helps in widening the cracks. Also, flowing river water helps in the wearing down of rocks over time, which results in the formation of soil.
Word problems can be classified into different categories. Understanding each category will give be an. advantage when trying to solve word problems. All problems in each category are solved the same way. With practice you will begin to see the similarities among word problems and be able to solve them easier. and faster. Age Problems. These types of problems ask you to figure out the age of different people by giving you different clues.
While key words are very important, they are only part of the process. Understanding the language in word problems is critical for all students. They need to know the meaning of words. But because words are often used differently and problems are set up differently, there are some cautionary messages.Here is an example of problem that uses fewer than to set up a subtraction equation. Maria has 24 marbles which is 8 fewer than Paolo has.he difference is between knowing the meaning of the words fewer than and using fewer than as a key to an operation. We want students to know the meaning of the words, but also to see them in the context of the whole problem.