Category: Math

Math Recap Comparison Statements=

recap video

Michelle asked us to think about the different types of comparison statements that we have been using, and our work with rates and unit rates. During this video I answered two questions. The first one is how I found these ideas helpful. The second one is for me to make up an example comparing the two items using unit rates.

Mathematical Similarity Sumarry

Figures are mathematically similar when their corresponding angles are congruent and when the ratios of the lengths of their corresponding sides are equal. This is related to finding a scale factor. Figures are also mathematically similar when the ratios of side lengths within the figure are equivalent.

Any two rectangles are similar.

FALSE

This is false because any two rectangles could have different ratios of the lengths of their corresponding sides.

 

Any two equilateral triangles are similar

TRUE

Since they always have three angles that are each 60 degrees, any two equilateral triangles are similar. And the sum of all of the angles is 180 degrees. So this shows that all of the corresponding angles of two equilateral triangles will always be congruent.

 

Math Notes

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This a good example of good math notes because it is spread out throughout the page. It is also good because I explained the equation like the teacher did. I also used the graph on the paper and wrote inside of the boxes.

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This is a good example of bad math notes because it is not spread out throughout the page. I did not explain the equation like the teacher did. I also did not use the graph paper and wrote outside of the boxes. The handwriting in general is very messy.

Math Check Up 2

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As you may have been able to tell, this is a math assignment. It is an assignment checking to see if we understand the concept of figure similarity. Figure congruency is when all of the corresponding angles are the same. Figure similarity is when you apply a scale factor to the sidelengths of the new figure it becomes the original figure. The first question is asking me which figures are similar. I figured his out by stating the scale factor, but I did so unclearly and at is what Michelle noted at. She also noted at how on the last one I did not state the conditions that made the figures similar.image

 

The next page had me draw a bunch of figured that fit certain conditions, such as a figure being similar to another but not congruent. I did these all by simply, drawing a figure that fit the conditions, just as it said as simple as that. I did this completely correct

Oliver Math Profile

Oliver          9/10/16

B                 Math Profile

 

I remember in kindergarten in class we were learning how to count by twos. I always thought to myself, “Why are we chanting random numbers?” I was always too afraid to ask the teacher in class because I thought that my classmates would think that I was stupid. As I grew older, I gradually came to understand things that I once didn’t know. I think this is because I started to pay more and more attention in class, and that I am an extremely fast learner. In fourth grade I had an extremely hard time understanding the US algorithm for addition, as the teacher called it. But from then on fourth, I did alright in math. I got decent grades, and I was understanding all the concepts the teacher was teaching us. Something that I like about learning math is how everything always makes sense and fits together. Like finding the all the different factors of a product, or long division. Something that I don’t like about learning math is how things are explained sometimes.

 

Something interesting about me is that I know 4 programming languages, which sort of gives me a higher understanding of some of the more known confusing parts of math, sort of like variables. In batch and python I use variables all the time, so I am comfortable with. I am curious if other parts of programming are also parts of math, like functions. I consider myself a good math student now because I can understand mathematical concepts easily. My routine for doing homework is to sit down at the dining room table, and simply, work. Whenever I get stuck I like to clear my head by eating dinner or taking a break, and take a stab at it again. If I am extremely stuck I will ask my mom to look at it, and if I am impossibly stuck I will call a friend for help.

Math – Percentages and Decimals

Problem #26

40 = 20% of what number?

Step 1

40 x 5 = 200

Answer

200!

Story Problem

Bob has 40 fat walruses living in his apartment. They are some of the only Blue bottomed walruses left on the planet. They are 20% of the last blue bottomed walruses. How many blue bottomed walruses are there in total on the world?

Problem #27

81/2% of $500.00

Step 1

8.5% of  $500.00

Step 2

.085 of $500.00

Step 3

.085 x  $500.00

Step 4

.085 x 500.00 = 42.5

Answer

42.5!

Story Problem

Bob loves fish tacos. He wanted to buy a fish taco that costs $500.00 . There is an 8 1/2% tax on the fish taco. How much does Bob pay for the fish taco?

Problem #28

18 = __% of 150

Step 1

18 = __% x 150

Step 2

18 ÷ 150

Step 3

18 ÷ 150 = .533

Step 4

.533 = 53.3%

Answer

53.3%

Story Problem

Bob has 18 matches missing from his 150 matchbox. What percentage of matches are missing from Bob’s matchbox

 

Math Take Home Test

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This test was about all of the things that we have learned so far in the quarter. I studied hard, and I think I did a pretty good job on it. It was sort of checking to see if you understand we were doing in class.

Math Pop Quiz

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This is one of the many in class pop quizs that we have been getting over the past few weeks. I turned it in to Margaret and she was confused about what I did with two of the problems. I did the fraction and addition correctly, but I messed up with the fraction multiplication and division. She didn’t grade that one and explained to me what I was doing wrong. After that she handed me back a clean test and told me to do the bottom two again. I did the bottom two correctly and then I got a 3.

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Xtramath Scores

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This is my score for a math multiplication facts study tool called xtramath. I have been studying consistently and I feel like I have made a lot of progress. Before I started xtramath I stumbled with some problems I can do now in the blink of an eye. It has helped me a lot with my multiplication facts and now I can solve complicated problems way easier.

 

Math Notebook Before and After

 

 

 

 

 

 

 

 

 

 

 

 

 

                                                                        Before

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After

 

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A week and a half ago I boxed up all my work and tried to cram all of it into small spaces. I noticed that I was doing that recently so in my later work I have been trying to space everything out to make it clear. I got rid of those ugly lines sectioning off all of the problems and split up my homework over two pages. My work looks a lot better than before. As the schoolyear goes on I will improve my work layout to make my homework look clear and crisp.