LEARN NC

K–12 teaching and learning · from the UNC School of Education

Geometry

Goal 3: Algebra - The learner will transform geometric figures in the coordinate plane algebraically.

Objective 3.02. Use matrix operations (addition, subtraction, multiplication, scalar multiplication) to describe the transformation of polygons in the coordinate plane

Additional related resources

We’re in the process of aligning our content for students to the Standard Course of Study. As we do, you’ll find it here.

General resources

Aligned lesson plans

Resources on the web

Symmetries IV
This lesson, from Illuminations, helps students to understand and identify glide reflections. With the help of a Java applet, students construct glide reflections using a translation and a reflection. (Learn more)
Format: lesson plan (grade 9–12 Mathematics)
Provided by: National Council of Teachers of Mathematics
Symmetries III
This lesson, from Illuminations, helps students to understand how translations work and what happens when two or more translations are applied one after the other. (Learn more)
Format: lesson plan (grade 9–12 Mathematics)
Provided by: National Council of Teachers of Mathematics
Symmetries I: Conclusions
This lesson challenges students to reflect on the mathematical ideas learned in a multi-part lesson on Geometry. (Learn more)
Format: lesson plan (grade 9 Mathematics)
Provided by: National Council of Teachers of Mathematics
Reflections across two mirror lines
In this lesson, one of a multi-part unit from Illuminations, students learn what happens when a design is reflected twice across two different mirror lines. (Learn more)
Format: lesson plan (grade 9–12 Mathematics)
Provided by: National Council of Teachers of Mathematics
Reflect on this
In this lesson, from Illuminations, students investigate reflections in a plane using mirrors (or other reflective materials) and a geometry utility. They apply their findings to examination of interior angles of regular polygons. (Learn more)
Format: lesson plan (grade 9–12 Mathematics)
Provided by: National Council of Teachers of Mathematics
Describing reflections
In this lesson, one of a multi-part unit from Illuminations, students learn how reflections work and what happens when two or more reflections are applied one after the other. (Learn more)
Format: lesson plan (grade 9–12 Mathematics)
Provided by: National Council of Teachers of Mathematics