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VOCABULARY OF INSTRUCTION: GEOMETRY GRA DE 4

VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

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Page 1: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

VOCABULA

RY OF

INSTR

UCTION: G

EOMETRY

GR

AD

E 4

Page 2: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

PARALLEL LINES/LÍNEAS PARALELAS

• Definition: Parallel lines remain the same distance apart over their entire length. No matter how far you extend them, they will never meet.

• Definición: Dos líneas son paralelas cuando se mantienen a la misma distancia y nunca se encuentran.

Page 3: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

PERPRENDICULAR LINES/LÍNEAS PERPENDICULARES

• Definition: A line is perpendicular to another if it meets or crosses it at right angles (90°).

• Definición: Líneas que se encuentran en ángulos rectos (90°).

Page 4: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

SYMMETRY/SIMETRÍA

• Definition: Symmetry is when one shape becomes exactly like another if you flip, slide or turn it.

• Definición: Simetría es cuando una figura se vuelve exactamente igual que otra si la volteas o la giras.

Page 5: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

LINE OF SYMMETRY/LÍNEA DE SIMETRÍA

• Definition: The imaginary line where you could fold the image and have both halves match exactly.

• Definición: La línea de simetría de una figura es una línea que divide la figura en dos partes congruentes que son una imagen espejo una de otra.

Page 6: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

CONGRUENT FIGURES/FIGURAS CONGRUENTES

• Definition: Figures that have the same shape and size.

• Definición: Tienen la misma forma y el mismo tamaño.

Page 7: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

SIMILAR FIGURES/FIGURAS SIMILARES

• Definition: Two shapes/figures are Similar if the only difference is size (and possibly the need to turn or flip one around).

• Definición: En geometría, dos figuras son similares si la única diferencia es el tamaño (y a lo mejor girar o voltear una de ellas).

Page 8: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

REFLECTION/REFLEXIÓN

• Definition: An image or shape as it would be seen in a mirror, or in a smooth lake.

• Definición: Una reflexión es un volteo con respecto a una línea.

Page 9: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

ROTATION/ROTACIÓN

• Definition: Turning around a center. The distance from the center to any point on the shape stays the same. Every point makes a circle around the center.

• Definición: Girar alrededor de un centro. La distancia del centro a cualquier punto de la figura es la misma. Cada punto sigue un círculo alrededor del centro.

Page 10: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

TRANSLATION/TRANSLACIÓN

• Definition: Moving without rotating, resizing or anything else, just moving. Every point of the shape must move in the same distance and in the same direction.

• Definición: Movimiento de una figura, sin rotarla ni voltearla. "Deslizar". La figura sigue viéndose exactamente igual, solo que en un lugar diferente.

Page 11: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

RIGHT ANGLE/ÁNGULO RECTO

• Definition: An angle which is equal to 90°, one quarter of a full revolution.

• Definición: Un ángulo recto es un ángulo que mide exactamente 90°.

Page 12: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

ACUTE ANGLE/ÁNGULO AGUDO

• Definition: An angle whose measure is less than 90°.

• Definición: Un ángulo de menos de 90°.

Page 13: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

OBTUSE ANGLE/ÁNGULO OBTUSO

• Definition: An angle that is greater than 90° but less than 180°.

• Definición: Un ángulo que mide más de 90° pero menos de 180°.

Page 14: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

RAY/RAYO

• Definition: A ray is a line that starts at a given point and goes off forever in some direction.

• Definición: Un rayo es una línea con punto de inicio pero sin punto final (va hacia el infinito).

Page 15: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

PLANE/PLANO

• Definition: The plane has two dimensions: length and width. But since the plane is infinitely large, the length and width cannot be measured.

• Definición: Un plano es una superficie plana sin espesor que se extiende hacia el infinito.

Page 16: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

VERTEX/VÉRTICE

• Definition: A point where two or more straight lines meet. A corner.

• Definición: Un punto donde dos o más líneas se encuentran. Una esquina.

Page 17: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

POLYGON/POLÍGONO

• Definition: Polygons are 2-dimensional shapes. They are made of straight lines, and the shape is "closed" (all the lines connect up).

• Definición: Una figura plana (bidimensional) con lados rectos. Ejemplos: triángulos, rectángulos y pentágonos.

Page 18: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

RECTANGLE/RECTÁNGULO

• Definition: A four-sided polygon (a flat shape with straight sides) where every angle is a right angle (90°). Opposite sides are parallel and of equal length.

• Definición: Un rectángulo es un polígono de 4 lados (una figura plana de lados rectos) en donde cada ángulo es un ángulo recto (90°). Los lados opuestos son paralelos y de igual longitud.

Page 19: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

PENTAGON/PENTÁGONO

• Definition: A 5-sided polygon (a flat shape with straight sides).

• Definición: Un polígono de 5 lados (una figura plana de lados rectos).

Page 20: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

TRIANGLE/TRIÁNGULO

• Definition: A triangle is a figure that has three sides and three angles. The three angles always add to 180°.

• Definición: Un triángulo tiene tres lados y tres ángulos. Los tres ángulos siempre suman 180°.

Page 21: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

OCTAGON/OCTÁGONO

• Definition: An 8-sided polygon (a flat shape with straight sides).

• Definición: Un polígono de 8 lados (una figura plana de lados rectos).

Page 22: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

THREE-DIMENSIONAL FIGURE/FIGURAS TRIDIMENSIONALES

• Definition: Three-dimensional figures are those figures that do not lie in a plane. The dimensions of three-dimensional figures are length, width, and height.

• Definición: Las figuras tridimensionales se llaman sólidos. Los sólidos tienen tres dimensiones: longitud, profundidad y altura.

       

Page 23: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

CUBE/CUBO

• Definition: A cube is a box-shaped solid object that has six identical square faces.

• Definición: Un cubo es un objeto sólido en forma de caja que tiene seis caras cuadradas idénticas.

Page 24: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

CONE/CONO

• Definition: A solid (3-dimensional) object that has a circular base and one vertex.

• Definición: Un objeto sólido (tri-dimensional) que tiene una base circular y un solo un vértice.

Page 25: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

SPHERE/ESFERA

• Definition: A 3-dimensional object shaped like a ball. Every point on the surface is the same distance from the center.

• Definición: Un objeto tridimensional con la forma de una pelota. Todos los puntos de su superficie están a la misma distancia del centro.

Page 26: VOCABULARY OF INSTRUCTION: GEOMETRY GRADE 4. PARALLEL LINES/LÍNEAS PARALELAS Definition: Parallel lines remain the same distance apart over their entire

QUADRILATERALS/CUADRILÁTEROS

• Definition: Any four-sided shape is a quadrilateral but the sides have to be straight, and it has to be 2-dimensional.

• Definición: Las figuras de cuatro lados se llaman cuadriláteros pero los lados tienen que ser rectos, y la figura tiene que ser bidimensional.