Math: Geometry: Angles and Triangles

Learn about angles and triangles. See examples of acute, obtuse, and right angles as well as equilateral, isosceles, and scalene triangles. Find out several rules of angles, triangles, and Pythagorean Theorem. Includes classroom activities, quizzes, and animated movies on triangles. There is a link to an eThemes Resource on shapes.

教育标准

• 4,
• 5,
• 6,
• 7

申请州标准

• Types of Triangles Based on Angles

  Practice recognizing types of triangles based on their angles measurements. Click on the "Next Lesson" link at the top to practice recognizing triangles by their sides' lengths and finding an angle.

  翻译主题
• Triangle Geometry

  This site has extensive explanations of angles and triangles. Follow the links to view glossary definitions and see proofs of different theorems.

  翻译主题
• Enchanted Learning: Angles and Triangles

  Read the definitions for the different types of angles and triangles, then try labeling the diagram. Click on "Answers" to see how you did. NOTE: The site includes ads.

  翻译主题
• edHelper: Angles

  This printable worksheet has students identify what types of angles are shown.

  翻译主题
• edHelper: Angle Measurement

  Students can practice measuring these angles.

  翻译主题
• BrainPOP: Geometry

  Watch three animated movies to learn about "Measuring Angles", "Types of Triangles", and "Similar Triangles". Choose these movies from the table and don't forget take quizzes and view fun activities. NOTE: The web site is available by subscription only.

  翻译主题
• BrainPOP: Algebra: Pythagorean Theorem

  Click on the "Pythagorean Theorem" icon to watch a movie and learn how the theorem works. NOTE: The web site is available by subscription only.

  翻译主题
• Fact Monster: Triangles

  Learn the different types of triangles and what type of angles they have. NOTE: The site includes pop-up and banner ads.

  翻译主题
• ThinkQuest: Isosceles and Equilateral Triangles

  This student-created site has descriptions of the isosceles and equilateral triangles followed by an interactive quiz. Click on the "Special Triangles" link at the left to learn two theorems of right isosceles triangles. NOTE: The site has a link to a message board.

  翻译主题
• Polygons: Triangles

  This site takes you step-by-step through the different types of triangles. NOTE: The site includes ads.

  翻译主题
• edHelper: Classify Triangles

  Try to identify these different types of triangles.

  翻译主题
• SuccessLink: Furniture Design

  This lesson plan from a Missouri teacher has students design furniture using triangles and other shapes.

  翻译主题
• Figure It Out!

  This table game can help kids to learn how to identify different types of triangles.

  翻译主题
• Impossible Triangles

  Test your knowledge of triangles and point out what is wrong with triangles on this page.

  翻译主题
• PBS: Peddling Petals

  This classroom activity has students use triangles and rectangles to make patterns.

  翻译主题
• eThemes Resource: Math: Geometry: Shapes

  These sites are about shapes including quadrilaterals and polygons. Includes definitions and examples of them in everyday life. There are interactive sites with games, manipulatives, and animated movies.

  翻译主题

翻译链接

• AL
  • M. ES 1.3.a.1
  • M. ES 1.3.b.1
  • M. ES 1.3.c.1
  • M. ES 1.3.d.1
  • M. ES 10.2.a.1
  • M. ES 10.2.b.1
  • M. ES 11.3.a.1
  • M. ES 11.3.b.1
  • M. ES 8.3.a.1
• ME
  • M2E1.4
  • M2E1.5
  • M2E1.6
  • M2E1.7
  • M2E2.4
• MO
  • 1.2
  • 1.5
  • 1.6
  • 2
  • 3.3
  • 4

翻译本页

创建日期: 2001年4月06日 08:41 | 更新日期: 2012年10月09日 15:19