* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Geometry Nomenclature: Triangles
Survey
Document related concepts
Multilateration wikipedia , lookup
History of geometry wikipedia , lookup
Tessellation wikipedia , lookup
Dessin d'enfant wikipedia , lookup
Euler angles wikipedia , lookup
Technical drawing wikipedia , lookup
Penrose tiling wikipedia , lookup
Golden ratio wikipedia , lookup
Rational trigonometry wikipedia , lookup
Apollonian network wikipedia , lookup
Trigonometric functions wikipedia , lookup
Euclidean geometry wikipedia , lookup
Reuleaux triangle wikipedia , lookup
History of trigonometry wikipedia , lookup
Transcript
© 2012 Montessori 123: Triangles 3-Part Simplified Geometry Nomenclature: Triangles Activity 1 Teach the parts of a triangle first. Students can make one out of construction paper and use the cards to label the parts. Activity 2 Teach the different types of triangles based on the number of sides that are the same. Scalene triangles have 3 sides that are all different, isosceles triangles have two sides that are the same and equilateral triangles have three equal sides. Students can use a ruler to measure. See if they can find examples in the environment. Activity 3 Teach the different types of triangles based on angles. First show how to use a measuring angle (right angle) to see if angles are the same, smaller or larger. Acute angles are smaller and obtuse angles are larger. Children enjoy using a measuring angle to find different types of these angles in the environment. Children can then identify triangles that have these angles. One example of each should be recorded on paper. Activity 4 After they have learned the terminology they can name triangles such as obtuse-angled scalene triangle. Activity 5 Play the detective game of triangles. Traditionally there are 54 triangles in three sizes and three colors. Start by writing “the triangle” on paper. Add a clue such as “red”. There are still too many choices. Add another clue such as “small”. The children will quickly see they need all the clues: “The small red obtuse-angled scalene triangle”. Once they understand the game they must find or draw the triangles described. © 2012 Montessori 123: Triangles 3-Part Simplified base of the triangle base of the triangle © 2012 Montessori 123 angle angle © 2012 Montessori 123 © 2012 Montessori 123: Triangles 3-Part Simplified sides of a triangle © 2012 Montessori 123 sides of a triangle vertex © 2012 Montessori 123 vertex © 2012 Montessori 123: Triangles 3-Part Simplified area of a triangle area of a triangle © 2012 Montessori 123 perimeter of a triangle © 2012 Montessori 123 perimeter of a triangle © 2012 Montessori 123: Triangles 3-Part Simplified right triangle right triangle © 2012 Montessori 123 obtuse triangle © 2012 Montessori 123 obtuse triangle © 2012 Montessori 123: Triangles 3-Part Simplified acute triangle acute triangle equilateral triangle equilateral triangle © 2012 Montessori 123 © 2012 Montessori 123 © 2012 Montessori 123: Triangles 3-Part Simplified scalene triangle scalene triangle © 2012 Montessori 123 isosceles triangle © 2012 Montessori 123 isosceles triangle