Friday 28 September 2012

7th Grade Math

 In the previous post we have discussed about Free word problem solver and In today's session we are going to discuss about 7th Grade Math.

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7th grade math consists of many vital concepts that would be needed to solve higher grade math problems. Let us discuss the 7th grade math as follows:
1. Starting is done with a very basic conceptual understanding of numbers and mathematical operations. Numbers like rational numbers, the roots of perfect square, ratios and proportions, problems on percentages like profit – loss & discounts etc.
2. Learning the decimal numbers, conversion from fractions to decimals and vice – versa, comparison between different types of numbers etc.
3. Understanding scientific representation of numbers, problems involving surds & radicals, functions like absolute value, and also the idea of real numbers.
4. Operations that we learn are like addition, subtraction, multiplication and division of integers, fractions, decimals etc. Solving exponents, logarithms and properties related to them.
5. Learning the characteristics of numbers and using them in solving the maths problems related to algebra.
6. Next comes the geometrical maths which involves the understanding of the characteristics of angles and different shapes. Angles can be categorized as: Adjacent, Vertical, Linear, Complementary, Supplementary or Corresponding angles. Shapes or figures we learn like circles, lines, planes, polygons etc.
7. We learn to sketch the graphs of different figures on basis of their equations. Solving their equations and finding various parameters related to them. Understanding the behaviour of various functions (whether increasing, decreasing, inflection point, critical points etc.)
8. Learning the congruencies of triangles and solving the problems using different corollaries and well – defined theorems.
Let's see how to convert a decimal to a fraction?
A decimal has place values starting from tens place value. We remove the decimal and put number of zeros in front of one in the denominator according to the place values and then solve for the fraction. These concepts are detailed in iit sample papers.

Thursday 27 September 2012

Free word problem solver

In the previous post we have discussed about Seventh Grade Math and In today's session we are going to discuss about Free word problem solver. Mathematical word problem can be defined as a problem that are described in the form of narrative which are answered by converting them into corresponding computational form or in the form of equations. In simple terms we can say that a word problem is a problem which is written in word form and they are solved using mathematical properties. In mathematics, word problem basically deals with real world problems. There are two ways to defined to solve a math word problem that are given below:
A) First we need to convert the words in form of numerical equation or expression.
B) After that we can solve that problem very easily by applying mathematical rules.
Word problem solver free can be used for solving word problems. In school, most of students face difficulties while solving math word problem. To make student capable to successfully deal with these problems there are word problem solver available on Internet. These kinds of word problem solver provide their facility without charging any fees. Word problem solver free can be considered as sophisticated tool which is capable of solving any word problem by accepting problem from user and shows the answer in few seconds.
This kind of problem solver is very useful for those students who are beginners for solving math word problems. First describe the concept very clearly and carefully. After that solve the problem by generating the answer in step by step manner.
Math problem solver helps students to understand basic concepts and operations involved in word problem. In number system, irrational Number Examples include those examples that belong to concept of irrational numbers.
Next we will study Irrational Numbers Examples.
ICSE syllabus 2013 is available online, which can be downloaded for free.

Friday 14 September 2012

Seventh Grade Math



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When we study Seventh Grade Math, we come across number system. In this chapter we will get the detailed knowledge about the types of numbers and their properties.
We start the concept with the study of the natural numbers. All the numbers which start from 1, 2, 3, 4, . . . . . . . . . upto infinite are called natural numbers. We say that the natural numbers are the counting numbers. We observe that each natural number has the successor , which we get by adding 1 to the given number. In the same way each natural number except 1 has a predecessor, which we get be subtracting 1 from the given number.
Now we come to the whole numbers. These numbers are used for measurement of the units. Thus we start whole numbers from 0. All the whole numbers have successors as natural numbers and leaving 0, each number has the predecessor too. Now we look at the Integers. Integers are the series of numbers which start from minus infinite and goes upto + infinite. All the numbers of the series can be expressed on the number line and we observe that the middle most number of the  series of integers in 0. Thus we say that the digits that exist on the right side of the  number 0 are positive numbers and the numbers which exist at the left side of the  number line are all negative numbers. Further we also observe that in the series of integers, all the numbers have their successor and the predecessors.
To learn about the  Measure Of Central Tendency, which is the topic of statistics, we can take help of math online tutors. It is the part of the curriculum of grade 8 of the Icse Syllabus 2013.