Hidden Weapons of Math Instruction ... this page is in a temporary form and will look prettier in the future
... are short animated demonstrations aimed at explaining just one math problem. Created ad hoc for my online classes, they are produced using PowerPoint and uploaded and streamed using Impatica to create a small file with fast delivery. More will be added soon.
Complex Numbers: multiplication
Exponential Expressions: simplifying 1
Exponential Expressions: simplifying 2 full version refresher version
Factoring 1: 15x2 + 38x + 24
Factoring 2: 10z2 - 29z + 10
Factoring 3: 7x2 + 46xy - 21y2
Quadratic Equations: Completing the square. x2 + 12x + 6 = 0 3x2 + 10x – 5 = 0
Quadratic Equations: Solving by factoring. (5x + 7)(3x – 4) = 0 x2 – 8x = -15 16x2 + 34x – 15 = 0
Quadratic Equations: Solving by the quadratic formula. 2x2 – 5x – 3 = 0 3x2 + 12x + 2 = 0 5x2 + 6x + 4 = 0
Radical Expressions: simplifying full version refresher version
Rationalizing the Denominator 1
Rationalizing the Denominator 2
Rationalizing the Denominator 3
Synthetic Division with Complex Numbers