To exoplre the idea of complex numbers, I will engage the students in groups of four or five to complete the activities that involve with discriminant in quadratic equations. Once the students have basic understanding of the roots and discriminant of the quadratic equations, I will give them some problems which have complex roots. Also, the students will learn how to add, substract, multiply, and graph the comploex numbers in cartesian plane.
Type of Task:
Complex Numbers--Roots, addition, subtractaction, and multiplication of the complex mumbers.
After the presentation, i will pass out a five minute quiz. I will be looking for if the students can find complex roots of a quadratic equation. Also, they must know that how to add, subtract, and multiply the complex numbers.