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Didactalia: material educativo > 12-14 anos/1º-2º ESO

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Alternate Exterior Angles

"Alternate exterior angles are formed by a transversal intersecting two parallel lines . They are located "outside" the two parallel lines but on opposite sides of the transversal, creating two pairs ...

Line Segments

"A line segment is part of a line, has fixed endpoints, and contains all of the points between the two endpoints. One of the most common building blocks of Geometry, line segments form the sides of p ...

Age Word Problems

"Setting up a system of equations is usually effective when solving age word problems involving the ages of two people. Knowing how to solve systems of equations is necessary to solve these types of p ...

Adjacent Angles

"Adjacent angles share a side and a vertex. If angles only share a side but not a vertex, they are not adjacent. Adjacent angles can also be described as "next to" or "side-by-side" angles." Fuente: B ...

Additive Inverse

"Inverses, like the additive inverse or multiplicative inverses, are important for understanding how to cancel terms when solving for variables in equations and formulas. When a number is added to its ...

Absolute Value Equations

"Solving for a variable in absolute value equations follows different rules than when we solve multi-step equations. When solving absolute value equations, most of the time we get more than one possi ...

Absolute Value

"Sometimes we need to use only positive numbers, and the absolute value is a useful tool for this purpose. When you see an absolute value in a problem or equation, it means that whatever is inside the ...

45 45 90 Triangles

"A 45 45 90 triangle is a special type of isosceles right triangle where the two legs are congruent to one another and the non-right angles are both equal to 45 degrees. Many times, we can use the Pyt ...

Ejercicios de Matematicas para 2º ESO

Una colección de actividades educativas para la asignatura de Matemáticas de 2º de Secundaria. Los ejercicios hacen referencia al siguiente temario:

Notación científica

Decimales

Ecuaciones

Estadística

Fra ...

Tablas de cálculo mental

En esta web enontrarás un método para sistematizar el cálculo mental en el aula así como diversas actividades para fomentar el cálculo mental.

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