CK-12 Foundation
Ck 12: Elem Math: Classify Objects as Rectangles, Squares, Circles, or Triangles
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on classifying rectangles, squares, circles and triangles.
CK-12 Foundation
Ck 12: Elem Math: Classify Objects as Rectangles, Squares, Circles, or Triangles
[Free Registration/Login may be required to access all resource tools.] Students practice classifying various two dimensional shapes as rectangles, squares, circles or triangles.
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.
Government of Alberta
Learn Alberta: Math Interactives: Classifying Quadrilaterals
This multimedia that includes a short video [1:19] and other interactive activities on Learn Alberta math resource looks at real-world examples of shape classification in the investigation and solving of crimes. The accompanying...
Science Education Resource Center at Carleton College
Serc: Introduction to Dichotomous Keys
This lesson serves as an introduction to the classification of plants and animals or trees. Students will investigate how to classify objects based on their similarities and differences. They will use technical writing to explain their...
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...
Utah Education Network
Uen: Classify Yes, but Is It Alive?
Do you know the traits something that is alive? Test your knowledge of the traits of life by identifying objects as alive, not living, or once alive.
Smithsonian Institution
Smithsonian in Your Classroom: Teaching With Collections [Pdf]
This instructional activity is great for young learners who like to collect things. It gives you ideas of ways to teach such concepts as classifying, sorting, arranging, multiplying, graphing, and measuring with collections of simple...
Science Education Resource Center at Carleton College
Serc: Using and Creating a Dichotomous Key
Middle schoolers will investigate classification through a sorting activity and discus real-life evidence of classifying objects.
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.
SRI International
Performance Assessment Links in Science: Classifying Rocks
This is a performance task where students sort and classify rocks based on their properties, then demonstrate how they can transfer their understanding to decide on ways they might sort and classify other types of objects.
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 using the book My Big Truck Book by Roger Priddy in which students learn to sort items into categories they create for themselves. Ideas for teaching, guided practice, and independent practice...
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.
School Express
Schoolexpress.com: Grammar Worksheets
This site provides a comprehensive index of printable grammar worksheets. Each topic has an extensive list of worksheets to choose from. Topics include abbreviations, alphabetizing, parts of speech, classifying, punctuation, prefixes,...
Government of Alberta
Learn Alberta: Math Interactives: Exploring Shape Classification
Investigate the properties of triangles, quadrilaterals, and regular polygons using this interactive Learn Alberta math resource. Students are able to practice classifying shapes based on their different properties. Be sure to follow the...
PBS
Pbs Mathline Lesson: Geometry, It's a Perfect Fit [Pdf]
This two-part geometry lesson plan has learners identify, describe, and classify two-dimensional shapes. Students engage in hands-on activities including identifying shapes in the classroom, creating patterns with shapes, identifying...
Other
My Science Box: Is It Alive?
A lesson plan that introduces middle schoolers to the concept of classifying objects as either living or non-living. From this lesson, students begin to think about the necessary characteristics of life.
Other
My Science Box: Raising Plants
The objective of this lesson is to study the life cycle and structure of plants. Students learn about the concept of classifying objects as either living or non-living by growing plants from seeds, fertilizing them, collecting seed, then...
National Council of Teachers of Mathematics
Nctm: Illuminations: Cutting Corners
Students will use their knowledge of plane figure attributes to create and view shapes by cutting and rotating shapes to stimulate discussions on names and attributes of various shapes they do not regularly encounter.
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...
ABCya
Ab Cya: States of Matter
States of Matter is an educational activity for kids to learn about the different properties of matter. The lesson will introduce solids, liquids, and gases. Students will then be assessed through a sorting activity where they will...
Alabama Learning Exchange
Alex: It's in the Bag
This instructional activity is a unique and fun way to review perimeter, angles, and types of adjectives. Learners pick an object from the classroom that will fit in a paper lunch bag. They investigate their object and fill in the...
Science Education Resource Center at Carleton College
Serc: Magnets: What "Sticks"
While working in small groups, students will learn about magnetism by exploring what does and does not "stick" to a manget. Students will learn that only objects made of metal stick to magnets but not all objects made of metal stick.