Algebra in the 21st Century
Math education in the 21st century is different from the 1900's. 2 + 2 is still 4 but technology has changed the way Math is learned, taught and tested. Students are expected to be analytical rather than computational as tests have been designed with the (graphing) calculator in mind.
In the 20th century, graphing was done on graph paper Print Free Graph Paper. For example, for y = 2x + 5 ("double x and add 5"), we would pick x values such as 0, 1, 2 and find the corresponding y values of 5, 7, and 9 . We could then plot these three points (0,5), (1,7) and (2,9) and connect them to form a line.
Nowadays, using the Texas Instruments TI-83/4 graphing calculator, y = 2x + 5 can be seen in a graph and on the xy table.
According to TI, "a graphing calculator is a learning tool designed to help students visualize and better understand concepts in mathematics and science. As they gain a deeper understanding of the material, students acquire the critical thinking and problem-solving skills they need to attain greater academic success."
Texas Instruments Calculators
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Brain Teaser
What is the greatest possible product of two positive whole numbers whose sum is 100?
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