Category Archives: maths

The formula for abbreviated multiplication

The formula for abbreviated multiplication

The most important abbreviated multiplication formulas.

Formulas of abbreviated multiplication allow you to perform calculations much faster.
The most commonly used abbreviated multiplication formulas:

(a + b)2 = a2 + 2from + b2

Pythagorean theorem – Calculator

Pythagorean theorem – Calculator

In any right triangle, the sum of the squares of the lengths of the legs is equal to the square of the length of the hypotenuse of the triangle. As indicated in the figure, there is identity.

Geometrically it means, that if on the sides of the triangle …

Famous mathematicians

Famous mathematicians

What are the most famous mathematicians and what they have done in this field? Here we present 10 the most famous mathematicians and what they have done for this field.

Thales of Miletus lived in the years 620-540 p.n.e. He was the author of many theorems in geometry. The first …

Methods of solving text problems

Methods of solving text problems

The solution of the word problem is to find a way to present the content in mathematical form – saved as an action, several activities, a sequence of actions following one another, equations or inequalities, followed by the performance of predetermined mathematical operations and administration …

Composing text problems by students

Composing text problems by students

To master the ability to solve word problems, you need to know and understand their structure. You can learn it, arranging tasks. Students should acquire this skill in parallel with learning the art of solving problems. In elementary education, the ability to arrange tasks …

Types of word problems

Types of word problems

We distinguish between many divisions of tasks, depending on the adopted criterion, e.g.. structure - design correctness, context layer or content mobility, multiplicity of mathematical operations, which must be done when solving, e.t.c. Here we will look at a few selected criteria, considered essential from the point …

Word problems and ways to solve them

Word problems and ways to solve them

I asked pupils and students many times: What do they think about their own word problem solving skills? The answers usually surprise. In primary school, they generally have no problems solving them. The problem comes later, in junior high school and …

Multiplicity aspect

Multiplicity aspect

The multiplication aspect of activities is related to the recalculation of the size of the set. Let us just remind you, that in the earliest phase of shaping the ability to perform actions on natural numbers, when the child is at the stage of specific surgery, illustration on concrete is also used. Same, w …