Enduring Skill(s): Reasoning about Attributes of and Composing and composing and decomposing
geometric shapes Grade: 1
Performance level (lowest
leading to proficiency):
1
____________________
Performance Level (leading
to proficiency):
2
____________________
Performance Level
(at proficiency):
3
____________
Performance Level
(beyond proficiency):
4
____________________
Criteria:
Distinguish between
defining and nondefining attributes
(1.G.A.1)
Recognizes shapes but
cannot compare using
attributes.
Compare shapes in
different sizes and
orientations, using informal
language to describe their
similarities, differences and
parts and other attribute.
(K.G.B.4)
Distinguish between defining
attributes versus nondefining attributes; build and
draw shapes to possess
defining attributes
(1.G.A.1)
Recognize and draw
shapes having specified
attributes, such as a given
number of angles or a
given numbers of equal
faces.
(2.G.A.1)
Criteria:
Compose twodimensional shapes
and three-dimensional
shapes
(1.G.A.2)
Create simple shapes.
Compose simple shapes to
form larger shapes.
(K.G.B.6)
Can compose twodimensional and threedimensional shapes to create
a composite shape and
compose new shapes from
the composite shape.
(1.G.A.2)
Can decompose a
composite shape into twodimensional or threedimensional.
Criteria:
Partition circles and
rectangles into two
and four equal shares.
(1.G.A.3)
Can only recognize shapes,
but cannot partition shape
into shares.
Can partition circles and
rectangles into two or four
shares, but not equally.
Does not use vocabulary
correctly.
Can partition circles and
rectangles into two and four
equal shares using the words
halves, fourths, and quarters
and the phrases half of,
fourth of, and quarter of;
understand that
decomposing a whole shape
into equal part creates
smaller parts.
(1.G.A.3)
Can partition circles and
rectangles into two, three
and four equal shares;
describe the shares using
the words halves, thirds,
half of, a third of, etc.; and
describe the whole as two
halves, three thirds, or
four fourths.; recognize
that equal parts of
identical wholes need not
have the same shapes.
(2.G.3)