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Hauptinhalt

STANDARDS

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US-NE

Math

Nebraska Math

Grade 3: GEOMETRY

Students will solve problems and reason with geometry using multiple representations, make connections within math and across disciplines, and communicate their ideas.

3.G.1

Shapes and Their Attributes: Students will recognize and represent the attributes of two-dimensional shapes.

3.G.1.a

Sort quadrilaterals into categories according to their attributes.

3.G.2

Area and Perimeter: Students will recognize perimeter and area as attributes of plane figures and understand concepts of area measurement.

3.G.2.a

Solve authentic problems involving perimeters of polygons when given the side lengths or when given the perimeter and unknown side length(s).

3.G.2.b

Use concrete and pictorial models to measure areas in square units by counting square units.

3.G.2.c

Find the area of a rectangle with whole-number side lengths by modeling with unit squares; show that area can be additive and is the same as it would be found by multiplying the side lengths.

3.G.3

Measurement: Students will use tools to solve measurement problems.

3.G.3.a

Identify and use the appropriate tools and units of measurement, both customary and metric, to solve authentic problems involving length, weight, mass, liquid volume, and capacity (within the same system and unit).

3.G.3.b

Estimate and measure length to the nearest half inch, fourth inch, and centimeter.
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3.G.4

Time: Students will tell time to the nearest minute and find elapsed time.

3.G.4.a

Tell and write time to the minute using both analog and digital clocks.

3.G.4.b

Solve authentic problems involving addition and subtraction of time intervals and find elapsed time.