# Tutor profile: Susana S.

## Questions

### Subject: Psychology

One of the most common questions that are asked by psychologist is if behavior comes from the education that we receive or if it is more influenced by our heritage (DNA, biology). Famously called the nature vs nurture question. Which would be a good way to understand what this question is trying to define?

The question about nature vs nurture is asking if a little child will behave according to what his parents have taught him or if they will depend on his temperament according to his heritage. Let's say that there is Lulu, a little girl that was adopted by a new couple. Her new parents may be worried about Lulu having a strong temper (getting angry easily). They could wonder if it is in their hands to educate her in a way in which she would not behave aggressive even when getting angry easily or if since, she has this temperament since she was born if that heritage would be strongest and she will become aggressive in the future. In this case, psychology tries to show the different aspects that can affect how aggressive Lulu can be in the future. It will try to see how both, her biology (inherited temper) and the education given could be either challenges or tools that she could use in the future to develop her character.

### Subject: Biology

What are the cell cycle phases during mitosis?

First, it is important to notice that it is asking for the stages during mitosis, which is when a common cell (not a gamete: egg or sperm) is being created from a parent cell. The different stages in mitosis are prophase, methaphase, anaphase and telophase. In that specific order. The cell first condenses its DNA into chromosome form, then pair of chromosomes alight in the middle of the cell. Then the sister chromatids are attracted to opposite sides of the cell and finally those chromosomes start to form the two new nucleus, the steps are here again mentioned in the right order. Of course, I would explain with simple words and examples to younger students but, I would explain and use more technical scientific terms for college level students as needed.

### Subject: Algebra

John and Sally went to the supermarket, both of them only bought mangoes and watermelons. John bought ten mangoes and four watermelons and spent a total of 58 dollars. Sally in the other hand, bought seven mangoes and five watermelons spending a total of 56 dollars. How much were each watermelon and each mango?

This type of questions can be answered by using a system of equations. Using either elimination or substitution methods. Since we are looking for two unknown values, the price of the watermelons and the mangoes we could use either of them. We will represent the price of the mangoes with an x letter since we do not know its price, and our watermelons with a y letter. This is how we can set it up: John bought 10 x + 4 y = 58 Sally bought 7x + 5y = 56 If we use elimination method we can try to isolate the value of y in terms of x, by subtracting one equation from the other, the easiest way to do so, will be by rearranging the order of both and subtracting John's by Sally's 7x + 5y = 56 minus 10x + 4 y = 58 which will give us -3x + y = -2 We will now leave y by itself: y = -2 +3x We can now substitute the value of y that now we found in John's equation. 10x + 4 (-2+3y) = 58 We need to multiply 4 times what we have inside the parenthesis. Which will give us 10x +12x -8 + 58 Now everything is in terms of x. Now we can solve for the value of x which will be x= 3 The same strategy can be used to find the value of y (price of watermelons). This time I would allow the student to go through finding y guiding them along the way. Note: in order to get to this level of questions in algebra, of course we would need to have previously made sure to know how to solve for x in a simple equation.