Transcript Name Triangles named by their angles

Geometric Figures
Created by: Carol Sweat
School Name: Kelly Elementary
Subject: Math
Grade Level: 4th
State Standards and Indicators: (4) 3.1.A2
Identify, name, describe and solve real world problems using the properties of geometric figures and their
component parts (sides, angles).
Activity Instructions:
Page 2 & 3 - Provide each student with a paper copy of a cube. On each face of the cube the students will create the various
quadrilaterals. I used linguine or fettuccine noodles (they are easy to cut with a scissor and the flat side glues easier). Glue the cube
together after the quadrilaterals have been created. Use the Smartboard lesson to model for the students. Have the students
discover what component parts (sides, angles) are needed to create each quadrilateral.
Page 4 & 5 - Provide each student with a paper copy of a pyramid. Repeat the steps you followed with the quadrilaterals to create
triangles named by their sides.
Page 6 & 7 - Provide each student with a paper copy of a pyramid. Repeat the steps you followed with the quadrilaterals to create
triangles named by their angles.
Page 8 & 9 - Compare the properties of geometric figures by completing the polygon tree. Each polygon can be cloned and placed
throughout the polygon tree.
Page 10 & 11 - Have students practice recognition of polygons as part of a composite figure. These are good to prepare for the state
assessment.
rhombus
QUADRILATERA
L
square
Any polygon that
has four sides.
trapezoid
rectangle
parallelogram
Triangles named by
their sides
Name
Isosceles
3 equal sides
Scalene
2 equal sides
Equilateral
no equal sides
Scalene
no equal sides
Triangles named by
their sides
Name
Isosceles
2 equal sides
Equilateral
3 equal sides
Triangles named by
their angles
Name
Right
1 obtuse angle
Obtuse
3 acute angles
Acute
1 right angle
Right
1 right angle
Triangles named by
their angles
Name
Obtuse
1 obtuse angle
Acute
3 acute angles
Polygons
Triangles
Hexagon
Quadrilaterals
Pentagon
Trapezoids
Parallelograms
Rectangles
Rhombus
Squares
Polygons
Triangles
Hexagon
Quadrilaterals
Pentagon
Trapezoids
Parallelograms
Rectangles
Rhombus
Squares
Which plane shapes were used to form this figure?
a. octogon, two squares, two triangles
b. hexagon, two triangles, two squares
c. pentagon, two squares, two triangles
d. trapezoid, two triangles, two squares
Which shape is NOT used in the picture?
a. rhombus
b. elipse
c. rectangle
d. hexagon