THE SOUNDTRACK OF LIFE

Mathematics can we practice from a song. It is also more fun! Believe it! Why? Because we can express our emotion and our expression. Do you know? From a song, we can show our creativity. That is that Mr. Marsigit give to his students include me. We were given some mathematics songs.

Song: Do you know about math

It is tell us what mathematics is. There are many chapters in mathematics. For example : multiply, memorizing pi, take limits, to simplify, graphing utility, trigonometry, limits, logarithm, exponential, etc. From that song we know that learn mathematics is fun.

Song: Perimeter

From this song we can learn how to measure perimeter of a shape. It can be circle, triangle, squares, rectangles, parallelograms, trapezoidal, kite, etc.

Song: Mean, median, and mode

From this song we learn about statistic. We can practice how to find median, mean, and mode. Mean is the average of the data. To find mean, it is to add up the numbers in the data, then divide the total by the number of items. Then median is the middle value, to find it, we must look arrange the numbers in order from the lowest to the highest values. The middle number is the median for an odd number of items. The average of two middle numbers is the median for an even number of items. Mode is the value that often arise, to determine it just find the number that repeats most often.  If there is no number that repeats most often, there is no mode.

Song: The math song

It is song from Bruno Mars with title The Lazy Song. That song is made with fun style. So, it can interest student. We can practice more easy.

Then some videos from Mr. Marsigit. That video show about derivative, integer, and angle.

Derivative is slope of tangent line at point (x, f(x)) ((x+h),f(x+h)), h is change of x. Slope = (y2-y1)/(x2-x1). Definition of derivative F’(x)= limh→0 (f(x+h)-f(x))/h. So, derivative is a slope. Derivative is limit a slope, limit change. Then, try find f’(2) from f(x)= 4×2-8x+3. Substitute f(2) and f (2+h)to the function. Then, simplify and factory.

Integer is whole number, not fractional or decimal. Whole numbers that greater than zero are called positive integers, It is on the right of zero in the number line. Whole numbers less than zero are called negative integers, it is on the left of zero in the number line. In the integer, there are place number, such as unit place, tens place, hundred place, thousand place, etc.

Angle. There are several kinds of angles: acute angle, the angle whose measure is less than 90⁰. The angle brackets, which the measure is 90^0. Obtuse angle, the angle whose measure is greater than 90⁰. Straight angle, the angle whose measure is180⁰. Two angles that complement each other is total of the measure is 90⁰. Two angles that supplement each other is total of the measure is 180⁰. Vertical angles are two angles that the places are opposite each other. Angle bisector is a ray that splits an angle became two congruent angles. Perpendicular lines are intersecting lines that from right angle.

That’s all…. So, we can say that practice mathematics is fun. Sing your own song and show your expression. Be creative student!