Angles Unlimited (Angles and Angle Pairs)

Students will use the internet to find pictures that show angles in everyday usage.  Students should report out, telling all they know about the angles they find.  Tier One students may be given a list of possible sites to investigate.  In their journals students will compare and contrast definitions and symbols.

Standards & Objectives

Academic standards
CCSS.Math.Content.4.G.A.1
Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.
CCSS.Math.Content.4.G.A.2
Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a...
CCSS.Math.Content.4.MD.C.5
Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement:
CCSS.Math.Content.4.MD.C.6
Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.
CCSS.Math.Content.4.MD.C.7
Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the angle measure of the whole is the sum of the angle...
CLE 3108.1.4
Move flexibly between multiple representations (contextual, physical written, verbal, iconic/pictorial, graphical, tabular, and symbolic), to solve problems, to...
CLE 3108.4.1
Develop the structures of geometry, such as lines, angles, planes, and planar figures, and explore their properties and relationships.
GLE 0406.4.1
Understand and use the properties of lines, segments, angles, polygons, and circles.
SPI 0406.4.1
Classify lines and line segments as parallel, perpendicular, or intersecting.
SPI 0406.4.4
Identify acute, obtuse, and right angles in 2-dimensional shapes.
SPI 0406.4.5
Identify attributes of simple and compound figures composed of 2- and 3- dimensional shapes.
TSS.Math.4.G.A.1
Draw points, lines, line segments, rays, angles (right, acute, obtuse, straight, reflex), and perpendicular and parallel lines. Identify these in ...
TSS.Math.4.MD.C.5
Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement.
TSS.Math.4.MD.C.6
Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.
TSS.Math.4.MD.C.7
Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the angle measure of the whole is the sum of the angle measures...
 
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Learning objectives: 

Students will:

  • Move flexibly between multiple representations (contextual, physical written, verbal, iconic/pictorial, graphical, tabular, and symbolic), to solve problems
  • Develop the structures of geometry, such as lines, angles, planes, and planar figures, and explore their properties and relationships
  • Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement
  • Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure
Essential and guiding questions: 

Why is it important to have a good definition for angles and angle pairs?

What are the limits of geometrical representations and modeling?

 

Lesson Variations

Blooms taxonomy level: 
Analyzing

References

Contributors: