Here are some things I have learned in 4th grade. One thing I learned is what an equivalent  fraction is. If you have two eights and one fourth and cross  multiply two times four = eight and eight  times one = eight. It has to be equal to be a equivalent fraction. I also learned that you can add time by using a chart. Like if you have a problem like Karly went to twirling  practice at 4:15 and it took 45 minutes. How long did it take Karly at twirling practice? I learned what a right angle, obtuce angle and what a acute angle is. They are angles that have degrees. Also, a right angle has 90 degrees,a obtuce angle has more than 90 degrees and an acute angle has less than 90 degrees.I used a Protractor and it looks like this :Also it has a little dark vertex on it and you put the little line on the protractor on your dark circle on your paper. Another thing i learned is 2 digit times 2 digit.My teacher said make a multiplacation chart. Like 2 lines going up and down close to each other and then two line going horizontal close to each other. Last but not least the 5th thing I learned what perimeter and area is and perimeter is he rim of something the area is the inside of something.

 

Protractor