Building
upon knowledge and skills gained in preceding
grades,
by the end of Grade 3, students will:
Standard 4.2
(Geometry
and Measurement) All students will develop
spatial sense and the ability to use geometric
properties, relationships, and measurement
to model, describe and analyze phenomena.
Standard 4.2.3.A
Geometric
Properties
Standard 4.2.3.A.1
Identify
and describe spatial relationships of two or more
objects in space.
· Direction, orientation, and perspectives
(e.g., which object is on your left when you
are standing here?)
· Relative shapes and sizes
Standard 4.2.3.A.2
Use
properties of standard three-dimensional and two-dimensional
shapes to identify, classify, and describe them.
· Vertex, edge, face, side, angle
· 3D figures – cube, rectangular prism,
sphere, cone, cylinder, and pyramid
· 2D figures – square, rectangle, circle,
triangle, pentagon, hexagon, octagon
Standard 4.2.3.A.3
Identify
and describe relationships among two-dimensional
shapes.
· Same size, same shape
· Lines of symmetry
Standard 4.2.3.A.4
Understand
and apply concepts involving lines, angles, and
circles.
· Line, line segment, endpoint
Standard 4.2.3.A.5
Recognize,
describe, extend, and create space-filling patterns.
Standard 4.2.3.B
Transforming
Shapes
Standard 4.2.3.B.1
Describe
and use geometric transformations (slide, flip,
turn).
Standard 4.2.3.B.2
Investigate
the occurrence of geometry in nature and art.
Standard 4.2.3.C
Coordinate
Geometry
Standard 4.2.3.C.1
Locate
and name points in the first quadrant on a coordinate
grid.
Standard 4.2.3.D
Units
of Measurement
Standard 4.2.3.D.1
Understand
that everyday objects have a variety of attributes,
each of which can be measured in many ways.
Standard 4.2.3.D.2
Select
and use appropriate standard units of measure and
measurement tools to solve real-life problems.
· Length – fractions of an inch (1/4,
1/2), mile, decimeter, kilometer
· Area – square inch, square centimeter
· Weight – ounce
· Capacity – fluid ounce, cup, gallon,
milliliter
Standard 4.2.3.D.3
Incorporate
estimation in measurement activities (e.g., estimate
before measuring).
Standard 4.2.3.E
Measuring
Geometric Objects
Standard 4.2.3.E.1
Determine
the area of simple two-dimensional shapes on a square
grid.
Standard 4.2.3.E.2
Determine
the perimeter of simple shapes by measuring all
of the sides.
Standard 4.2.3.E.3
Measure
and compare the volume of three–dimensional
objects using materials such as rice or cubes.
