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Numeracy Review: Classifying Numbers 258 300 School Tutoring

Numeracy Review: Classifying Numbers

In mathematics, we can classify all numbers into groups based on their shared characteristics and type. Many of the classifications are subcategories of each other, so often a single number belongs to more than one group. These classifications include natural numbers, whole numbers, integers, rational and irrational numbers, and real and complex numbers. Now, we…

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Circumference and Area of a Circle 150 150 SchoolTutoring Academy

Circumference and Area of a Circle

A circle is a curve joining a set of points which are at same distance from a fixed point.  Here, the fixed point is called the center of the circle and the fixed distance is called the radius of the circle. If we divide the distance along the curve of the circle by its diameter…

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Food for Thought! Counter-Intuitive Thinking 150 150 Suzanne

Food for Thought! Counter-Intuitive Thinking

Here’s a riddle: A man goes to a courthouse with an urgent message for a lawyer, who is in a meeting on floor 19, which cannot be interrupted. Five of seven elevators are out of service, and there is a 45 minute long line to get on an elevator. The man resolves to walk up the stairs…

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Algebra: How to do Vector Product (Cross Product) 150 150 SchoolTutoring Academy

Algebra: How to do Vector Product (Cross Product)

In vector product of vectors, the vector components are combined to give a vector. The vector product of two vectors is a vector which is perpendicular to both the given vectors. The vector product is mostly used in Physics. The vector product is also known as “cross product”. The mathematical definition of vector product of…

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Algebra: How to do Vector Addition 150 150 SchoolTutoring Academy

Algebra: How to do Vector Addition

A Vector is a quantity which has both magnitude and direction. Example: Force, velocity, momentum etc. A vector is represented by a directed line segment. If the vector has the initial point P and final point Q then the vector is denoted by   or PQ. The length of the vector is called its magnitude or…

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Mathematics Review: Significant Figures 291 232 School Tutoring

Mathematics Review: Significant Figures

Significant figures are an important aspect of doing calculations in both chemistry and physics. Significant figures allow a reader to know how precise certain calculations are and how much of a variation there may be in an answer. First, we need to be able to identify how many significant figures are in a number. The…

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Nine Divisibility Rules to Remember 340 250 School Tutoring

Nine Divisibility Rules to Remember

There are many tricks which can be used by students to help them develop their skills in mathematics. Here are some quick ways to check the divisibility of any number.   Dividing by 2 All even numbers are divisible by 2. It is easy to identify an even number regardless of how large the value…

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What is a Preposition? 417 364 School Tutoring

What is a Preposition?

A preposition connects a noun, pronoun or phrase to the other words in a sentence. The word or phrase that the preposition introduces is called the object of the preposition. A preposition usually indicates the temporal, spatial or logical relationship its object has to the rest of the sentence. Here are some examples: The pencil…

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Properties of a Triangle 150 150 SchoolTutoring Academy

Properties of a Triangle

Triangle: A triangle is a closed curve which is formed by 3 line segments. The line segments by which the triangle is formed are called sides of the triangle. The points of intersections of the sides of the triangle are called the vertices of the triangle. The angles formed at the vertices are called the…

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Geometry: Congruent Triangles 150 150 SchoolTutoring Academy

Geometry: Congruent Triangles

Two triangles are said to be congruent when the corresponding angles and the corresponding sides in both the triangles are same. i.e. both the triangles look like same, but one will be the mirror image of the other. Here, ΔPQR and ΔLMN are congruent. Because ∠P is congruent to ∠L. ∠Q is congruent to ∠M.…

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