Construction Lesson Plans

Help 9th graders identify lines, points, rays, and planes in geometry. They  practice identifying, measuring, and drawing angles of different degrees. This is a fundamental lesson to help students learn the building blocks of geometry.

Help your middle and high schoolers explore geometric terminology. In this geometry lesson, learners use the entire year to create an ABC Geometry book. Students use a list of terms learned in class to create a page for each letter. Students use a rubric to guide their process. 

Students construct a pentagon using the Ti-Nspire.  In this constructing a pentagon using the Ti-Nspire lesson, students construct a pentagon from a circle.  Students use perpendicular lines to aid in the pentagon construction.   Students measure the angles of the pentagon.

High schoolers discuss and identify polygons and lines. In this geometry lesson, learners review liner, square and cubic units so they can incorporate it into the lesson on measurement and creating packing that are cost effective.

Tenth graders investigate the early history of geometry. In this geometry instructional activity, 10th graders investigate translations, rotations, and reflections. They also solve problems with line of symmetry and rotational symmetry while reviewing important symmetry theorem.

Tenth graders solve problems using the correct tools. In this geometry lesson, 10th graders solve problems by constructions and graphing. They use a protractor, compass and straight edge to help create angles and bisectors. The identify the median, altitude and angle bisector of a triangle.  

How can we identify shapes in the Universe? High schoolers will compare and contrast elliptic and hyperbolic geometry. They will also explore one possible way to measure the curvature of the Universe, namely, by measuring the sum of the angles in a triangle. Resource links are included.

Students construct circles using Cabri Jr.  In this circle construction using Cabri Jr. lesson plan, students construct a circle using Cabri Jr.  Students measure the diameter and radius.  Students find points on the circle in order to find an equation to model their circle.  Students move their circle and discuss the differences in the equation.

Students construct rectangles using Cabri Jr.  In this rectangles lesson, students discover the properties of rectangles by measuring angles and side lengths of their constructions.  Students construct and measure the diagonals of their rectangles.  Students compare angle measures of various angles within the rectangle.

In this three-dimensional shapes geometry lesson, learners identify geometric solids and name their properties. They define "face," "edge," and "vertex," and construct geometric solids using marshmallows as vertices and toothpicks as edges.