Transformations Laura Izazaga Math 1351 TEKS 111 5

Transformations Laura Izazaga Math 1351

TEKS �§ 111. 5. Grade 3, Adopted 2012. �(b) Knowledge and skills. �(1) Mathematical process standards. The student uses mathematical processes to acquire and demonstrate mathematical understanding. The student is expected to: �(D) communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate;

What is a transformation? • A transformation moves a figure, like a square or a triangle, to a new position without changing the size of the figure or its shape by flipping, sliding, or turning! • The official names for this are: • Translation (Slide) • Reflection (Flip) • Rotation (Turn)

Transformation Examples Reflection Translation Rotation

Interactive Activity • http: //www. learnalberta. ca/content/mejhm/index. html? l=0 &ID 1=AB. MATH. JR. SHAP&ID 2=AB. MATH. JR. SHAP. TRAN& lesson=html/video_interactives/transformations/transform ations. Interactive. html

Translation • A translation slides a figure the same distance and in the same direction. • For example, moving the figure 4 units up and 9 units to the right will keep the figure exactly the same, just moved in a different area.

Translation Examples

Interactive Activity • https: //www. mathsisfun. com/definitions/translation. html

Reflection • A reflection is where you flip the figure across a line • When you look at a mirror you’re looking at your reflection; this is exactly the same thing!

Reflection Examples

Interactive Activity • https: //www. mathsisfun. com/geometry/reflection. html

Rotation • A rotation is turning a figure around a center point • For example, on a graph there would be a dot placed somewhere, and the figure would have to rotate around it.

Rotation Examples

Interactive Activity • https: //www. mathsisfun. com/geometry/rotation. html