Lines and Angles
Acute angle: An angle whose measure is less than 90; Right angle: An angle that measures 90; Obtuse angle: An angle whose measure is more than 90 and less than 180; Straight angle: An angle that measures 180; Reflex angle: An angle whose measure is more than 180 and less than 360. There are 3 sets of lines: Intersecting, Perpendicular and Parallel. Read More...
Create and Print your own Math Worksheetswith Math Worksheet Generator
◂Math Worksheets and Study Guides Fourth Grade. Lines and Angles
Study Guide
Lines and Angles 
Study Guide
Paper Protractor Activity Lesson
Line & Angles Worksheet/Answer key
Lines and Angles Worksheet/Answer key
Lines and Angles Worksheet/Answer key
Lines and Angles Worksheet/Answer key
Lines and Angles Worksheet/Answer key
Angles Worksheet/Answer key
Angles Worksheet/Answer key
Naming Angles Worksheet/Answer key
Identifying Parallel Lines Worksheet/Answer key
Identifying Parallel Lines Worksheet/Answer key
Identifying Perpendicular Lines Worksheet/Answer key
Lines Worksheet/Answer key
Lines Vocabulary/Answer key
Lines and Angles Vocabulary/Answer key
Lines and Angles
Study GuideActivity LessonWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
Geometry (NCTM)
Analyze characteristics and properties of two- and three-dimensional geometric shapes and develop mathematical arguments about geometric relationships.
Identify, compare, and analyze attributes of two- and three-dimensional shapes and develop vocabulary to describe the attributes.
Connections to the Grade 4 Focal Points (NCTM)
Measurement: As part of understanding two-dimensional shapes, students measure and classify angles.