on on on How do you personally define an ethic of care?
-Serious attention or consideration applied to do something especially in terms of things I concern.
What would be needed to create an ethic of care?
-Relationship and experience are needed to create an ethic of care.
What would we have to believe about the environment to care for it? How should we see it?
-We need a clean environment to keep our healthy, all the harm we do to the environment eventually hurts ourselves. Also, the number of natural disasters has risen sharply in recent years, which suggests that we need to make some changes to the environment.
How would we act if we cared about the environment? – give scenarios
-Reduce what we throw away, reuse what we can, recycle
-Bring our own bags to shopping and buy our own groceries
-Participate in environmental protection activities or become a volunteer
What would be different about the world if everyone adopted this ethic of care towards the environment? Benefits and drawbacks?
-If everyone adopted this ethic of care towards the environment, the world is bound to become an extremely hospitable place to live in. At the same time, the disadvantage is that the industry will not be as developed as it is now.
Should we adopt an ethic of care towards the environment?
-Personally, everyone has the attitude to protect the environment is necessary, as long as we start from the small things around slowly improve the environment is a good start. For example, don’t litter, put the rubbish into the dustbin where they belong and Pick up the potato chip bag and drink bottle on the floor.
on Introduction: Torque is used in Brazilian jiu-jitsu because players can use less force to complete a framing during a match.Through putting force and pressure on certain bones and places of the body, all the while using well placed levers, and fulcrums, can ensure that their technique will win them the fight.
Question 1: Why does Jiu Jitsu follow this progression? (Back ground)
The first step is to put the opponent on the ground so that they have no way to find the initiative to create leverage.Instead, we can use subsequent actions to create leverage and apply force and pressure to the opponent.Get past your opponent’s legs and control their hips and shoulders (or their legs) is helpful for us to have complete control over them. When we have completed the above steps, we have completed the leverage on our opponent.They had to surrender because they couldn’t bear the force we were exerting on them.
Question 2: Why does Brazilian Jiu Jitsu want control?
The reason is that who controls the opponent first in the game means that they have the power to leverage the opponent in advance.
on Sin Law : 
We only can use sin law when we know the value of one angle and the length of it’s opposite side and extra value of angle or length.
Ex: a=5, b= 2, angle A=30. Find the value of angle B
on 
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on The reasons why I think he is a good public speaker are he is adept at voice modulations. He presented his emotion during speaking by changing the speed and inflection of his voice. He was trying to get his point across to the audience when he slowed down, and he was emphasizing the opine when he increased the volume.
on A rotational angle is found between the initial arm and terminal arm ( A positive angle is a counter clockwise rotation, a negative angle results from a clockwise rotation )
Standard position is when the initial arm is on the positive x-axis rotation is about the origin.
Ex: show angle 220 in standard position
Rotational angle: 220
Reference angle: 40
Coterminal angle: -140
If the reference angle = A, rotational angles of this reference angle can be expressed by A, 180-A, 180+A, 360-A.
In addition, we can use three letters to show trigonometric function.
( Ex: tan A = 
Ex: Find all of the rotational angles of the reference angle 27, the range of rotational angle is 0~360.
1) rotational angle = A = 27
2) rotational angle = 180-A = 153
3) rotational angle = 180+A = 207
4) rotational angle = 360-A = 333
on The most important point I learned in this week was solving rational equations.
Situation 1: Each side of equal sign only one fraction. (In this situation, we can simply use cross multiply.)
Ex:
Situation 2: One side of equal sign have more than one fractions.
Step 1: Eliminate all fractions. (each fractions multiply the smallest common denominator)
Step 2: Solve the simplified equation.
Step 3: Get the result.(include the non-permissible value of x)
Ex:
on In this week, I learned how to multiplying and dividing rational expressions.
Ex: 
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