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Área: Math Asignatura: Math Curso: 4
th th
Fecha: August 13 -19 Periodo III Nº Horas: 5hr Semana: 6
Docente: Gerardo Núñez Coronado
Tema: Polygons
Indicador Identify and classify polygons
de Logro
Exploración LOOK AT THE PICTURE. CIRCLE THE POLYGONS.
Contextualización
Watch the following video:
http://www.youtube.com/watch?v=TwvDSWfXVpU POLYGONS
Conceptualización
VOCABULARY
EMOCIÓN
WHAT IS A POLYGON?
A polygon is a closed figure made up of straight line segments. Each line
segment on a polygon is a side. Each corner, or vertex, of a polygon forms an
angle. The point of where the sides meet is called a vertex. (vertices means
more than one vertex ).

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REGULAR OR IRREGULAR
If all angles are equal and all sides are equal, then it is regular, otherwise it
is irregular
Regular Irregular
HERE ARE SOME EXAMPLES OF POLYGONS

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Producción
QUADRILATERALS AND OTHERS POLYGONS
Name each polygon. If the polygon is a quadrilateral, write all names that apply.
Modelación
ACTIVITY
IS EACH FIGURE BELOW A POLYGON? IF NOT, EXPLAIN WHY NOT.
j. How many sides are there in the polygon shown on the
geoboard? How many angles?
USE A GEOBOARD OR DOT PAPER
k. Make a polygon with 3 sides. How many angles are there?
ACCIÓN
l. try to make a polygon with 2 sides. Is it posible? Explain.

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Workshop
SHAPE DEFINITIONS
On the lines provided, write the letter of the shape that each definition
describes
11. Kim drew a four-sided figure. Two of the sides were parallel and the other
two sides were not. What type of polygon did Kim draw?
12. What’s Wrong? Charlize said the figure below is an irregular hexagon.
What did she do wrong?
Lectura Complementaria:
http://www.ixl.com/math/grade-4/names-of-polygons-from-triangle-to-dodecagon
Bibliografía :
http://www.harcourtschool.com
http://www.ixl.com