Exploring plane figures - Mathematics Instructional Plan
Identify and Describe Circles, Squares, Rectangles, and Triangles Formative Assessment - Just in Time Quick Check, Teacher Notes, and Supporting Resources
Identifying geometric shapes in the environment - Mathematics Instructional Plan
Investigate interior angles of polygons; combine and subdivide shapes; determine unknown angle measures of a triangle - Rich Mathematical Task, Student Version, Anchor Papers, and Scoring Rationale
Classifying, sorting, and describing triangles - Mathematics Instructional Plan
Measure angles inside a triangle; Classify triangles as acute, obtuse, or right - Algebra Readiness Remediation Plan
Exploring the interior angles of a triangle - Mathematics Instructional Plan
Congruent Triangles Mathematics Instructional Plan
Solve Practical Problems involving Relationship between Corresponding Sides and Corresponding Angles of Similar Quadrilaterals and Triangles Formative Assessment - Just in Time Quick Check, Teacher Notes, and Supporting Resources
Solve a proportion to determine the missing side length of similar quadrilaterals or triangles - Mathematics Instructional Plan
Determining whether two plane figures are similar, identifying corresponding sides - Mathematics Instructional Plan
This lesson is a task in the Geometry strand that can be used for students discovering what makes a correct polygon and what does not. This lesson can be extended to upper primary students to include classifying types of triangles.https://goopenva.org/courses/1-g-all-vs-only-some
This lesson is a remix from Illustrative Mathematics. It focuses on right triangles. It can include acute and obtuse triangles in the lesson. Extensions of the lesson allow students to combine triangles to make other polygons.https://goopenva.org/courses/4-g-are-these-right
The purpose of this task is primarily assessment-oriented, asking students to demonstrate knowledge of how to determine the congruency of triangles.
How Many Triangles? Mathematics Instructional Plan
Similar Triangles Mathematics Instructional Plan
This resource is a series of Google Slides that asks if two attributes of quadrilaterals and triangles can exist together 'Never, Sometimes, or Always.' After posing the question, the following slide will show the an and possible examples of the given polygons.
Just in Time Quick Check Classifying Triangles
Just in Time Quick Check Sum of the Interior Angles of a Triangle
Just in Time Quick Check Practical Problems with Ordering Triangle Sides by Length Given Angle Measures