Academic Standard

Geometry and Measurement
Tennessee Diploma Project
Grade range: 
Conceptual StrandGeometry studies geometric shapes and structures and their characteristics and relationships. Understanding what a measurable attribute is and becoming familiar with the units and processes that are used in measuring attributes are the major emphasis of this standard.Guiding QuestionHow can students make and explore conjectures about geometry and reason carefully about geometric ideas while expanding their understanding of precision in measurement?
Elements within this Standard
Grade Level Expectation
Describe, compare, and analyze properties of polygons.
Understand and apply the concepts of congruence and symmetry.
Understand and use attributes of 2- and 3-dimensional figures to solve problems.
Use appropriate units, strategies and tools to solve problems involving perimeter.
Solve measurement problems involving fractional parts of linear units and capacity units.
Check For Understanding
Describe properties of plane figures (such as circles, triangles, squares and rectangles) and solid shapes (such as spheres, cubes and cylinders).
Classify polygons according to the number of their sides and angles.
Classify lines and segments as parallel, perpendicular, or intersecting.
Identify, create, and describe figures with line symmetry.
Understand that all measurements require units.
Recognize the use of fractions in liquid measures.
Recognize the relationships among cups, pints, quarts, and gallons.
Estimate and/or measure the capacity of a container.
Measure weight to the nearest ounce or gram.
Use reasonable units of length (i.e. kilometer, meter, centimeter; mile, yard, foot, inch) in estimates and measures.
Know common equivalences for length (1 meter = 100 centimeters, 1 yard = 3 feet, 1 foot = 12 inches).
Make and record measurements that use mixed units within the same system of measurement (such as feet and inches, meters and centimeters).
Use common abbreviations: km, m, cm, in, ft, yd, mi.
State Performance Indicator
Recognize polygons and be able to identify examples based on geometric definitions.
Determine if two figures are congruent based on size and shape.
Identify the line of symmetry in a two-dimensional design or shape.
Calculate the perimeter of shapes made from polygons.
Choose reasonable units of measure, estimate common measurements using benchmarks, and use appropriate tools to make measurements.
Measure length to the nearest centimeter or half inch.
Solve problems requiring the addition and subtraction of lengths.