Drawing and Geometry- In this geometry unit you will see some different
types of 3-D drawings, and learn how to do these drawings yourself. You
will also explore many interesting careers that use these techniques,
from architecture to movies.
of a Triangle - Students will learn and apply the use the formula
to find the area of a triangle.
Students wondering why we study about polyhedral can find one reason by
looking through the information in the links to Buckyballs.
and Constructing Corners - Students explore, classify, and define
the various types of angles (acute, right, obtuse, and straight) that
occur in the world around them. This lesson plan is the second lesson
in a series on geometry.
Tessellations - Explore the history of tessellations; then use art
and geometry to create an original tessellation.
Crystallography & Systems- Students studying polyhedral enjoy
seeing the structures as they occur in the real world. Crystalline structures
can be categorized into seven crystal systems.
Designs with Circles-
In the Islamic culture the circle is a unit of measure. The circle is
the basis for the organization of space. It is a starting point in architecture,
poetry, music and even calligraphy.
Not FAIR! - Students solve problems using fractions through hands-on
activities and appropriate literature.
Geometry - Student will be able to locate a position on a coordinate
plane when given the coordinates (pointing, using pencil or manipulative).
The Shape of an Egg, which includes discussions of surfaces of revolution
and methods for drawing ovals in the plane.
History and Practice- This series of interdisciplinary lessons on
Euclid's Elements was researched and written by Alex Pearson, a Classicist
at The Episcopal Academy in Merion, Pennsylvania.
Explain the Change- The lesson will
be introduced by reviewing slope as a rate of change as previously discussed
Physical devices can be modeled using dynamic geometry. A vital tool for
moving objects around in the model are the isometries, or distance-preserving
transformations. This model of a Ferris wheel provides a good example.
Circles- Students will display a numeral as the area of a rectangle.
Students will make as many rectangular Arrangements as possible for each
By DeSign - Teacher and students are a dynamic duo who search a geometry
Website to identify geometric vocabulary words, record them on a Quilt
Word Wall, and dance them out together. Words are displayed to take on
characteristics of different design patterns.
By DeSign 2 - A sequence of drawings performed by the teacher, leads
students to make associations with the object being drawn and geometry
content learned in prior lessons. Through questioning students unlock
Quadrant 1 of a coordinate plane and new vocabulary words.
By DeSign 3 - Knowledge of geometry is taken to the woods as students
walk the school grounds in search of symmetry in nature. Their finds are
brought back to the classroom, preserved by pressing, and then used as
the focus of a student generated narrative.
By DeSign 4 - Geo dot paper is used as a grid for coordinate geometry,
making a familiar arena for performing a most unusual task. Letters are
assigned to each dot. The challenge is to decode each word using given
coordinates and then to illustrate each with tangrams.
in Nature - The students will explore how the circumference, diameter,
and the relationship of Pi of a circle are related. The students will
also determine the age of a tree by counting the summer growth rings.
Scavenger Hunt - Students find everyday objects that represent geometric
figures. The students must then prove the object is in fact the shape.
Students also find the perimeter, area, surface area, volume, circumference
of selected objects.
Transformations - Students will understand the concepts of reflection
and translation as transformations of points, lines and objects.
Tessellations - Students apply knowledge of reflections, rotations,
and translations in creating a tessellation.
Introduction to Geometry
for Primary Students- These lessons are designed to guide young children
through an introduction to geometry. Children will learn to recognize
shapes and to create patterns, and will explore spatial relations and
is hip to be a Square - Describe, classify and compare relationships
among quadrilaterals, including the square, rectangle, rhombus, parallelogram,
Students often believe that "mathematics" was "written" by one person.
In these pages you will find that the magic square mathematical game has
existed throughout history and in many different parts of the world. Math
is all around us and your mind will see it when you're ready!
that Polygon! - The students will be able to identify and describe
Polygons using the Geoboard and manipulatives to a partner.
of Line Segments and Vertices - Students will recognize the cone,
sphere, cube, rectangular prism, and cylinder and tell the number of vertices,
faces, and edges/line segments.
in the Classroom- . The unit presented here uses the objectives found
in Unit 14 of Glencoe's Interactive Mathematics, but the activities have
been designed so that students can take extra time on specific mathematical
Triangle Congruency - Critical and logical thinking in solving congruency
is based on using two-column proofs in order to display the thought process
in a logical and orderly fashion.
Geometric Shapes - Students will recognize all 2D and 3D shapes their
attributes and properties.
Quagmires, and Quadrilaterals - Students classify, flip, slide, and
turn a quantity of quadrilaterals. Hands-on manipulatives and problem-solving
steps are used to explore these four-sided polygons. This plan is the
fifth in a series of lessons on geometry.
on Geometry - Students will have a better understanding on basic geometry
terms, and can produce the product on demand by using paper and pencil
method, and using tactile method.
- The major outcome is for students to be able to quickly be able to show
the difference between similar and congruent figures.
Polyhedra- Sometimes in mathematics we study ideas that are abstract
and difficult to see, but polyhedral can be seen! Crystals are real world
examples of polyhedra. The salt you sprinkle on your food is a crystal
in the shape of a cube.
Area of Geometric Shapes - In this unit, students will apply their
knowledge of area of common geometric figures to determine the surface
area of a common space figure.
Man - TLW create different types of triangles using measurements given
and classify each triangle by angles and length of lines.
unit for grades 4 through 6 uses tangrams to compute the area of polygons
without formulas. In the process of doing so, the terms congruent and
similar are introduced.
Tessellations- This unit integrates math with subjects such as language
arts and arts education. Throughout our activities we have asked the students
to respond to the concepts of tessellations. They will write definitions
and assess how well their groups worked together.
Blocks of Geometry - Students explore geometric building blocks in
the real world in order to describe the characteristics and relationships
of points, lines, line segments, rays, and planes. This is the first lesson
plan in a series of lessons in geometry.
Polygon - Students use hands-on manipulatives to explore and describe
the properties and attributes of the fundamental polygon: triangles.
The Plane! - Students draw, describe, and classify polygons built
from points, lines, line segments, and rays within a two-dimensional plane.
Objects- Students will be able to identify objects that are in the
shapes of rectangular prism, cylinder, and oval.