Technology: Using Geogebra to Add and Subtract Vectors
Through this activity, students will use the math application Geogebra to create, add, subtract, and find the magnitude of vectors. Students will have previously learned how to algebraically calculate the magnitude, addition, and subtraction of vectors. The first thing the students will do, is to create a vector by selecting the vector tool and two points on the graph (vector u). They will then create another vector (vector v) using the head of the vector they just created, and another point on the graph. In the input bar the students will type u+v, which tells Geogebra to add the two newly formed vectors together. The students will then try u-v in the input bar. To find the magnitude of the vectors, click on the distance tool and the two points that make up the each vector. To check their answers, the students should algebraically compute the operations of each vector. The students will continue to explore Geogebra and how to create, add, subtract, and find the magnitude of vectors.
Incorporating technology is an important and modern way to engage students. Incorporating technology prepares students for the real world, and encourages discovery and opportunities for learning and growth. Technology is one way to differentiate in the classroom. There are endless educational opportunities for incorporating technology into the classroom, and Geogebra is just one. Using technology, Geogebra specifically, to create vectors, add and subtract vectors, and find magnitude, offers additional practice, visual representations, and an opportunity for those students who learn best from technological methods rather than pen and paper.