Abigail B. Gonzales assists the participants in graphing various functions. PANGLAO, Bohol—Teachers need to level up their teaching techniques, especially in mathematics. To train the teachers, the ...

Here we look at a function as a mapping diagram. The inputs to the function g are along the real number line a the top, the outputs of g are on the real number line in the middle. The green point A ...

To approximate the definite integral we split the region up into many thin slices. For each slice we may approximate its area using rectangles, in which case we could either use right-endpoints, ...