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Hauptinhalt

STANDARDS

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US-NE

Math

Nebraska Math

Grade 4: GEOMETRY

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

4.G.1

Shapes and Their Attributes: Students will draw and identify lines and angles and classify shapes by properties of their lines and angles.

4.G.1.a

Identify, create, and describe points, lines, line segments, rays, angles, parallel lines, perpendicular lines, and intersecting lines.

4.G.1.b

Justify the classification of angles as acute, obtuse, or right.

4.G.1.c

Justify the classification of two-dimensional shapes based on the presence or absence of parallel and perpendicular lines or the presence or absence of specific angles.

4.G.1.d

Recognize, draw, and justify lines of symmetry in two-dimensional shapes.

4.G.2

Measurement: Students will generate simple conversions from a larger unit to a smaller unit to solve authentic problems and measure angles.

4.G.2.a

Identify and use the appropriate tools, operations, and units of measurement, both customary and metric, to solve authentic problems involving time, length, weight, mass, and capacity.

4.G.2.b

Determine the reasonableness of measurements involving time, length, weight, mass, capacity, and angles.

4.G.2.c

Generate simple conversions from a larger unit to a smaller unit within the customary and metric systems of measurement.

4.G.2.d

Measure angles in whole number degrees using a protractor and relate benchmark angle measurements to their rotation through a circle (e.g., 180º = 1/2 of a circle).

4.G.2.e

Recognize angle measures as additive and solve problems involving addition and subtraction to find unknown angles on a diagram.

4.G.3

Area and Perimeter: Students will apply perimeter and area formulas for rectangles.

4.G.3.a

Apply perimeter and area formulas for rectangles to solve authentic problems.