Fourth graders work in small groups to sort and classify a variety of objects. They develop criteria for sorting and explain the characteristics they chose for classification. Groups record and share their classifications.

Students sort objects by color. In this classification lesson, students identify the color of the objects and categorize them according to color.

Third graders create pictures using ordered pairs after listening to a piece of literature. In this ordered pairs and literature lesson, student listen to and discuss The Polar Express by Chris Van Allsburg. They participate in...

Students draw triangles and explore the classification of each using the measures of interior angles and lengths of sides. They investigate the sum of the interior angles of various triangles and conjecture and prove the theorem: The...

Imagine a learning community committed to using Costa and Kallick's Habits of Mind as the basis of curriculum design. The resource book is packed with lessons that are designed for and identify the standards and...

Pattern recognition is a skill often used in mathematics. Learners count and sort manipulatives, organize the data into a graph and answer questions about the information displayed. They collect the objects to be used and create patterns...

Learners study acute triangles. They measure angles using a protractor, then classify the triangles as either right, obtuse, or acute. Everyone creates a design for a Navajo rug using only acute triangles.

Young scholars use Venn diagrams to represent classifications of shapes and to use counting arguments to find the number of objects in a given set.

In this classification learning exercise, students cut out the 8 pictures of fruits and vegetables. Students then paste the pictures in the fruit box or vegetable box.

In this classification worksheet, students cut out 47 small pictures of toys. They classify the pictures in groups of their choosing. They tell the reasons for grouping the items the way they did.

Students classify buttons. In this classification activity, students listen to the book The Button Box  by Margarette S. Reid before observing, describing and classifying real buttons.

Students study sorting. In this classification lesson, students sort buttons into groups based on a common characteristic and draw two pictures illustrating the different groups.

Students investigate the concept of using fractions to solve problems involving rational numbers. They order real numbers on the number line with the classification of fractions. Also students solve problems using the four operations...

Second graders investigate the concept of Puerto Rican animals through using math word problems. They create a story to correlate with the word problems. The lesson also uses data of species counts to show increases and decreases for...

Explore how lines of symmetry help define different categories of quadrilaterals. Looking at a square, rectangle, trapezoid, and parallelogram, young mathematicians discover that each shape has its own, unique symmetry. Encourage your...

Students discover that side measurement is used in determining angle classification of a triangle. By squaring sides, they predict whether triangles be right, obtuse, or acute. They prove the Pythagorean Theorem and use it to solve...

Learners engage in a lesson plan that is about the classification of triangles and the mathematical proofs involved in working with them. They work on a variety of problems that are created by the teacher with the focus upon the...

In this cosmic bar graph worksheet, learners solve 2 problems using given bar graphs that plot the number of galaxies vs. the galaxy type and the number of gamma-ray bursts vs. the burst classification. Students find the fraction of...

Students learn the basic definitions of a quadrilateral, parallelogram, rectangle and square and explain the relationship/classification process between them.

Fifth graders engage in a variety of hands-on and technology-rich activities involving the classification of quadrilaterals. They utilize protractors and rulers to investigate the characteristics of various types of quadrilaterals. They...

Students prove conjectures about geometric figures on the plane or in space using coordinate geometry. They develop fluency in operations with real numbers, vectors and matrices using mental computation or paper-and-pencil calculations...

Young scholars describe Frieze designs using the work of indigenous people.  In this math lesson, students create 7 frieze designs using different patterns.  They create one row of repeated art and repeat this 7 times...

Students classify different types of triangles. In this geometry lesson, students identify and use properties of triangles. They differentiate between isosceles and equilateral triangles.

Ninth graders identify numbers as rational or irrational. Using calculators estimation, and factoring methods, 9th graders compute the square root of numbers. They graph numbers in sequential order and round numbers integers to the...