# Triangles Lesson Plan

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(25 KB|4 pages)
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By the end of this lesson, the students should be able to connect pairs of points with line segments, use points to label and name triangles, identify the vertices and sides of a triangle, and identify right triangles, equilateral triangles, isosceles triangles, and scalene triangles. This lesson plan includes objectives, essential questions, standards, evaluation methods, materials needed, and the procedural steps for the attention getter, summary directive, group instruction/demonstration, guided practice, independent practice, assessment, and closure. This lesson plan includes several hands on activities that are engaging and provide several visual aide ideas so that the students can practice and master the geometric concepts of triangles.

Classify two-dimensional figures in a hierarchy based on properties.
Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles.
Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.
Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.
Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories.
Total Pages
4 pages
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Teaching Duration
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