# Geometry Concept Attainment Lessons (Powerpoint)

The Concept Attainment model of instruction encourages discussion and collaboration. Students analyze examples, pick out patterns, and try to explain their thinking. The teacher reveals the academic language in the end. To learn more about using Concept Attainment, check out this video.

I found it incredibly powerful for teaching geometry lessons to my students. I was amazed at how much more engaged students were.

**A PowerPoint File**

To help other teachers implement Concept Attainment, I've created a Powerpoint (.pptx) file with dozens of lessons. These are fully editable in case you'd like to change or add your own lesson.

### Lessons Include

Lessons topics range from primary through middle school geometry. Here's a list of all lessons:

**Identifying Shapes**

- Squares / Rectangles
- Triangles / Rectangles
- Triangles / Quadrilaterals
- Polygons / Non-Polygons
- Regular / Irregular Polygons
- Concave / Convex
- Quadrilaterals / Non-Quadrilaterals
- Pentagons / Hexagons
- Octagons / Decagons

**Quadrilaterals**

- Trapezoid / Non-Trapezoid
- Parallelogram / Non-Parallelogram
- Parallelogram / Rectangle
- Rhombus / Parallelogram
- Rhombus / Kite
- Square / Rhombus

**Triangles**

- Equilateral / Non-Equilateral
- Isosceles / Scalene Triangles
- Acute / Obtuse Triangles
- Right / Non-Right Triangles

**Lines and Angles**

- Parallel / Non-Parallel Lines
- Perpendicular / Non-Perpendicular
- Obtuse / Acute Angles
- Supplementary / Non-Supplementary
- Complementary / Non-Complementary
- Vertical / Adjacent

**Three Dimensional Shapes**

- Prisms / Pyramids
- 2D / 3D Shapes
- Triangular / Rectangular Pyramids
- Cylinders / Cones

**Partitioning Shapes**

- Fourths / Halves
- Equal Thirds / Unequal Thirds
- One Fourth / Two Fourths

**Symmetry**

- Symmetrical / Asymmetrical
- One Line of Symmetry / Multiple Lines