MAT-02 Targeted Standards (G) Domain: Geometry Cluster: Reason with shapes and their attributes.
MAT-02.G.03 Partition circles and rectangles into two, three, or 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, four fourths. Recognize that equal shares of identical wholes need not have the same shape. Partition: Divide into pieces. (ND)
Student Learning Targets:
I can identify one-half, one-fourth, and one-third shaded parts.
I can understand that the same shape can be divided into equal parts in different ways.
Skills (Performance) Targets
I can divide circles and rectangles into 2,3,and 4 equal parts in different ways.
I can use the words halves, thirds, fourths, and half of to describe the equal parts.
I can describe one whole as being 2 halves, 3 thirds, and 4 fourths.
Rubric / Proficiency Scale
Student is able to partition shapes into parts with equal areas; express the area of each part as a unit fraction of the whole; determine if fractions are equivalent; and use models to prove if fractions are greater than/less than another.
I can write a fraction to represent the shaded portion of a shape.
I can represent a fraction using models or pictures.
I can explain why fractions are equivalent.
I can use pictures/models to prove if a fraction is greater than/less than another fraction.
In addition to Score 3.0 performance, the student demonstrates in-depth inferences and applications regarding the more complex content with partial success.
Student is able to partition circles and rectangles into two, three, and four equal parts without error; use the words halves, thirds, fourths; and recognize equal shares of identical wholes can have different shapes.
I can divide shapes into 2, 3, and 4 equal parts in more than one way with no mistakes.
I can use the words halves, thirds, and fourths to describe the equal parts.
No major errors or emissions regarding 2.0 content and partial knowledge of the 3.0 content.
Student is able to divide shapes/pictures into halves and fourths in more than one way without error.
I can divide shapes into 2 and 4 equal parts in different ways with no mistakes.
I can use the words halves and fourths to describe the equal parts.
In addition to 1.0 content, student has partial knowledge of the 2.0 and/or 3.0 content.
Student is able to identify shapes that have 1/2 and 1/4 parts shaded without error.
I can identify shapes/pictures that show 1/2 and 1/4 with no mistakes.
Limited or no understanding of the skill is demonstrated.