Exploring flips and slides
http://illuminations.nctm.org/LessonDetail.aspx?ID=L309
A lesson plan for grade 4 Mathematics
In this lesson, students explore the geometric transformations of reflection and translation. Students create a design and then, using flips and slides, make a four-part paper “mini-quilt” using that design as the basis. While the formal terms are “reflection” and “translation,” the more informal terms “slide” and “flip” are used at this stage. The experience focuses students’ attention on the changes these geometric transformations make in a student-designed quilt square.
North Carolina Curriculum Alignment
Mathematics (2004)
Grade 4
- Goal 3: Geometry - The learner will recognize and use geometric properties and relationships.
- Objective 3.03: Identify, predict, and describe the results of transformations of plane figures.
- Reflections.
- Translations.
- Rotations.
- Objective 3.03: Identify, predict, and describe the results of transformations of plane figures.


