Category: Math

Mathematical Similarties

Figures are mathematically similar when all corresponding angles are congruent and there is a scale factor. This means between two figures the angles have the same measurement. For figures also to be mathematically similar they needs to be a scale factor. A scale factor is when there is a number that you multiply or divide that will give you the measurement of the side length. Figures are only similar when there is a scale factor and all corresponding angles are congruent.

True or False

Any two rectangles are similar.

  • This is false because all rectangles angles are congruent but not all rectangles have a scale factor. Rectangles are only similar when there is a scale factor and all corresponding angles are congruent.  This proves that any two rectangles are not similar.

Any two equilateral triangles are similar.

  • This is true because all of the sides of an equilateral triangle are equal. Also all angles are congruent in an equilateral triangle. One equilateral triangle would be equivalent to the other one.

Math Note Taking

img_0048This is a picture of bad note taking. It is bad note taking because my work is sloppy and unclear. It also in not detailed enough and hard to understand.

img_0049 This is a picture of good note taking. It is good note taking because it clear and easy to understand. It is also good note taking because you can clearly see what is going on in class that day.

Math Checkup 2 post

img_0047-1img_0046

On the first page of this assignment is was asking you to find the scale factors between each shape. I found shape y and w had a scale factor because it had a scale factor of 2. 4 x 2=8 3 x 2=6. I also found that shape t and z had a scale factor of 2 as well. 2 x 2=4 3 x 2=6.

On the second page of this assignment we were asked to find a figure similar and not similar for each shape. The original shape was 4 by 3.  I then drew a shape that was 12 by 9. It was similar because it had a scale factor of 3 and all angels are congruent. The shape I drew that was not similar was 1 by 2. It was not similar because it had no scale factor. The second original shape was a triangle which was 4 by 6. I drew a shape that was 4 by 3. It was similar because it had a scale factor of 1/3. The shape I drew that was not similar was 6 by 9. It was not similar because it had no scale facor.

Math Profile

I remember one year I went into math thinking it was super easy and I was going to pass by it without any trouble. I was extremely wrong. I remember it was a lot harder than I thought. Now I know to go into math with the right attitude and to work hard. I like learning math because it helps me with other problems in life that are not math related. I also like it because it is very fun. I dislike learning things in math that I do not understand because it makes me frustrated and that makes it harder to work. I also dislike it because when I am not caught up with the class I don’t feel very good at math. I would like to say I am in between good and bad at math. I can easily get distracted but when I get the work I am doing and I am very concentrated I do very well. Usually when I get home I eat a small snack and then do my homework. I like to do my homework early and not the day before it’s due. I do not rush my work when I do it because I take my time. I try to save as much time as I have for the bigger projects because the more time I get the better my work is. When I study I like to look back at the notes I took in class that are on the quiz or test. I prefer to work on paper when I study because I can concentrate better that way. When I get stuck I read the question over again to understand it or I call a friend and see if they can help. I am very excited for the upcoming year of math to learn many new things. I will try my hardest everyday and try to not get frustrated so easily. I hope to have a great year and I hope you have a great year teaching.

Math Problems

1.  40= 20% x What Number

Step 1: 20 x 5= 100

Step 2: 40 x 5=200

Answer: 200

2. 81/2% x $500.00 =

Step 1: $500.00 x .85= 425

Answer=425

3. 18 = what % of 150

Step 1: 18 ÷ 150= 8.031

Answer: 8.031

Story Problem #1: Bob has 40 marbles 20% of the marbles are red . What of the 40 marbles are red.

Story Problem #2: Bob is getting a tv that is $500.00. where he lives the tax is 81/2%. How much will Bob pay with the additional tax.

Story Problem #3: Bob has 150 stamps. Each stamp is 18 cents. How much money is per all of the stamps.

Xtramath

1446822384943.1This is a picture of my Xtramath report my first time doing xtramath was doing each problem with 3 seconds. My second time I did it in 2 seconds. Doing xtramath made me a lot better at doing my multiplication facts. I have put in a lot of effort to get better at math and the hard work has payed off.