This year in fourth grade, Ive learned A LOT. The first math term I know that I never knew before is grid multiplication. Grid multiplication is a longer, but easier method for two-digit multiplication. first make a 3×3 grid on your paper. Then, put an X in the top left corner. You’re now done with the grid! Now find a problem to work out. let’s use 11 x 11. Of course most people already know the answer to this problem, but let’s just use it as an example. Now, expand the two numbers. Put the ten on the right of the x and the other below the x. Now, do the same thing with the ones, except with the ten it goes with. Here’s the fun part! Now it’s a coordinate game! Find the numbers that line up, and then put the answers in the square it lines up with. Now, add up all of the squares to get your answer! The second math term I learned is improper fractions. Improper fractions are when the bigger number is on top instead of the bottom. Basically, it’s an all fraction version of a mixed number, like 1 1/2. That would be equal to the improper fraction of 3/2. So, in words that is three halves! Interesting, right? Anyway, the third math term I learned are angles. Angles are… well… They’re kinda like the hands of a clock. When one hand is pointed directly on the 9  and the other hand is pointed directly on the 12, that is a right angle. A right angle is EXACTLY 90 degrees. When one is pointed at the 9 and the other is between (but not exactly on) 12 & 3 then it is an obtuse angle. An obtuse angle is more than 90 degrees but less than 180 degrees. If one hand is between (but not exactly on) 9 & 12, then it is an acute angle. An acute angle is less than 90 degrees and more than 0 degrees. If the angle is completely straight, it is a straight angle. A straight angle is EXACTLY180 degrees. The next-to-last term I learned are mixed numbers. Mixed numbers are when a regular number is paired up with a fraction. There’s not much left to explain… all I have to show is my example, which is 4 3/4.