CK-12 Foundation
Ck 12: Elem Math: Classifying Real Life Objects as Basic 2 D Shapes
[Free Registration/Login may be required to access all resource tools.] The video describes how to classify a real-world object as a circle, triangle, square or rectangle. The video is followed by additional practice problems.
Arcademics
Arcademics: Kangaroo Hop
Identify the shape that is given in word form to advance your kangaroo to the finish line.
The Franklin Institute
The Franklin Institute: Classified
At this site from The Franklin Institute you can practice classifying objects according to physical structure and characteristics.
NumberNut
Number Nut: Shapes, Symbols, and Colors: 2 D Shapes
Did you know that two-dimensional shapes are also called polygons? This lesson describes the various 2-D shapes and includes two interactive games to reinforce skills.
Other
Stay at Home Educator: Colors and Shapes Sorting Activities for Preschoolers
Sorting activities are the perfect way to help children learn to classify their world from the start. This article explains why this skill is so important in the "real world" and contains a list of sorting activities for preschoolers.
Texas Instruments
Texas Instruments: Classifying Quadrilaterals
Students will be sent ordered pairs through lists using the TI-Navigator. These pairs will then be graphed as a line graph and students will classify the shape of the quadrilateral and justify their choice.
GeoGebra
Geogebra: Copy of Classify Two Dimensional Figures
User will drag the vertices of the quadrilaterals to decide on the best possible classification.
NumberNut
Number Nut: Shapes, Symbols and Colors: Two Dimensional Shapes
Describes, with illustrations, the basic two-dimensional shapes students will encounter in elementary Math.
ClassFlow
Class Flow: Two Dimensional Shapes Identify and Match
[Free Registration/Login Required] This flipchart helps students to analyze and compare various two-dimensional shapes according to the vertices, sides and parallel lines. It features "containers" created in Version 3 (can be used with...
Alabama Learning Exchange
Alex: Geometric Man
The students will explore angles, rays, line segments, perpendicular lines, parallel lines, and two-dimensional figures through the use of the book Shape Up! Fun With Triangles and Other Polygons by David A. Adler. They will also...
Read Works
Read Works: Classify and Categorize Kindergarten Unit: Adding to Sorted Groups
[Free Registration/Login Required] A lesson using the book My Big Animal Book by Roger Priddy in which students learn to sort items into predetermined categories. Ideas for teaching, guided practice, and independent practice are...
Read Works
Read Works:classify/categorize Kindergarten Unit: Sorting to Predetermined Groups
[Free Registration/Login Required] A lesson using the book My Big World Book by Roger Priddy in which students learn to sort items into predetermined categories. Ideas for teaching, guided practice, and independent practice are included....
Read Works
Read Works: Classify/categorize Kindergarten Unit: Creating Groups and Sorting
[Free Registration/Login Required] A lesson plan using the book My Big Truck Book by Roger Priddy in which young scholars learn to sort items into categories they create for themselves. Ideas for teaching, guided practice, and...
Annenberg Foundation
Annenberg Learner: Patterns in Mathematics: Guess My Button
This website gives students an opportunity to sort and classify attributes of a group. The applet responds to each selection made and guides student to the next step.
PBS
Pbs Learning Media: Classifying Polygons
This interactive diagram focuses on sorting polygons by common properties and then you select the correct label for each section of the Venn Diagram.
Alabama Learning Exchange
Alex: A What? A What? A Quadrilateral
In this lesson plan, students will identify the characteristics of a quadrilateral. Students will have a chance categorize quadrilaterals into subgroups such as squares, rhombuses, rectangles, and nonregular quadrilaterals. This lesson...
CPALMS
Cpalms: Observable Properties of Matter
[Free Registration/Login Required] Students will sort objects according to their observable properties, such as size, shape, color, temperature (hot or cold), weight (heavy or light) and texture. Included are printable resources, a...
Mr. Martini's Classroom
Mr. Martini's Classroom: Classifying Polygons and Finding Perimeters
Assess learning of polygons and perimeters with this interactive multiple choice practice and quiz activity. Click the question mark for hints.
PBS
Pbs Mathline Lesson: Geometry, It's a Perfect Fit [Pdf]
This two-part geometry lesson plan has students identify, describe, and classify two-dimensional shapes. Students engage in hands-on activities including identifying shapes in the classroom, creating patterns with shapes, identifying...
University of Regina (Canada)
University of Regina: Math Central: Lesson: Mr. Z's 5 Minute Game of Geometric Pandemonium
Students make a series of geometric drawings of points, obtuse angles, rays, polygons, and the like. Each child is given one but not allowed to show anyone else. The drawing is then taped to the back of the child in front of them. The...
Quia
Quia: Geometric Terms Matching
Do you need practice remembering or learning different geometry vocabulary words and definitions? This matching game is the web site for you! There is a link to a list of terms with definitions you can click if you want to see if you are...
Varsity Tutors
Varsity Tutors: Aplus Math: Geometry Hidden Picture (Non Java)
Uncover the hidden picture by correctly matching geometry terms to their corresponding diagrams. This fun interactive online game will have your students asking to practice their math!
University of Regina (Canada)
Univeristy of Regina: Math Central: Patterns Here, There, and Everywhere
This lesson plan on early patterning is well written, well planned, and extensive. The math content is substantial for this age. There are lots of connections to other content areas. Materials needed are readily available or provided for...
US Department of Education
Helping Your Child Learn Math: Math in the Home
An excellent compilation of activities that engage parents and children in math explorations at home. Detailed lessons covering a wide range of math topics such as fractions, measurements, money, data collection, and math in newspapers....