What can symmetry tell us about triangles? After looking at four examples, learners will come to realize that lines of symmetry are different for equilateral, isosceles, and scalene triangles. Use this guided practice activity as an...

Use this activity to help your class develop an understanding of greater than, less than, and equal to with numbers valued between 1 and 10. Secretly place a number of marbles (between 1 and 10) in a brown paper bag. Then shake the bag...

Learning that size and orientation don't affect the classification of shapes is a big step for young mathematicians. Support children with developing this key understanding by looking at the array of shapes included in this resource. For...

All shapes have certain defining attributes that set them apart from others. In order to understand this, young mathematicians look at examples and non-examples of triangles, rectangles, and squares, working as a whole class to create...

Is that a right triangle or a wrong triangle? Young mathematicians look at eleven different shapes and use a measuring tool of their choice to determine which triangles have right angles. Consider cutting out sets of the shapes to...

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...

Challenge your class to construct a definition for trapezoids. Looking at four examples and four non-examples, learners individually create definitions and use them to classify an unknown shape. Allow for small group and whole-class...

Learners examine the properties of quadrilaterals from the point of view of rigid motion. Different types of quadrilaterals are characterized by their symmetries, so learners explore the symmetries of a described quadrilateral to...

Use Glencoe's randomly generated self-checking quiz to test your knowledge of angle classification and angle measurement. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page...

Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of angles. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check It"...

Students are assessed on different types of angles. Definitions of the angles are included.

Students are assessed on different types of triangles. Definitions of the triangles are included.

Students can take an online quiz that includes five self-checking multiple choice questions that explore angles. Hints are included.