MATH 2.1

UNIT 5

In this unit students will cultivate spatial awareness by:

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• further developing understandings of basic geometric figures

• identifying plane figures and solid figures based on geometric properties

• describing plane figures and solid figures according to geometric properties

• expanding the ability to see geometry in the real world

• partitioning shapes into equal shares by cutting, slicing, or dividing

• represent halves, thirds, and fourths using rectangles and circles to create fraction models

• compare fractions created through partitioning same-sized rectangular or circular wholes in different ways

• understand what an array is and how it can be used as a model for repeated addition

• organize and record data using tallies, simple tables and charts, picture graphs, and bar graphs

Students describe and analyze shapes by examining their sides and angles. Students investigate, describe, and reason about decomposing and combining shapes to make other shapes. Through building, drawing, and analyzing two- and three-dimensional shapes, students develop a foundation for understanding area, volume, congruence, similarity, and symmetry in later grades.