This week in math we learnt how to simplify and expand polynomials.
First if you were looking to simplify a polynomial you would need to eliminate the brackets then group like terms together. After you’ve done so depending on weather or not the sing in front if the number is a positive or negative you will to either add or subtract the number from the like terms.
Secondly if you were looking to expaned a polynomial you would need to distribut through out it. To do this you must take the nuber out I front of the brackets and multiply it by each number inside the brackets.
This week in math we learnt how to calculate the surface area and the volume of a sphere. I never learnt how to do this before and that all cones, cylinders, and spheres. All of these shapes have something in common however all of these shapes must have the same dimensions
3 cones= 1 cylinder
2 cones= 1 sphere
1 cone + 1 sphere = 1 cylinder
3 hemispheres = 1 cylinder
1 cone = 1 hemisphere
This week in math we learnt how to round measurements to the nearest (tenths, thousands… so on). Using this method just makes doing all the equations much easier and helps you estimate the right answer. and depending on the number after the one your trying to round will determine weather or not the number gets bigger or smaller. if the number is below 5, you round down to the next number down. But if the number in 5 or above you would round up.
Ex: if you have a number with a gross decimal like (43.5639428) you can use this method to simplify the number
To the nearest tenths: 43.6
to the nearest thousandth: 43.56
last week we learnt how to find the prime factorisation of numbers. the prime factorisation is a specific combination of prime numbers that can be multiplied together to result in a product. like the prime factorisation of 30 is ( 2 x 3 x 5 ). in this video i show you how to find the prime factorisation using division tables.
How would you feel if you were the only one on your whole team not wearing a skirt? In the short story “Sam the Athlete” written by Stuart McLean, a boy named Sam is going into middle school. Sam is very nervous so his mom and him go shopping and buy him a new pair of shoes. Sam wants to play sports but is not very athletic. The only sport he was relatively good at was being a hockey goalie. He saw that there was a field hockey team try out and thought that hockey on a field would be a good sport for him. He went to the try out and by the end he found out that the field hockey team was full of girls. Instead of quitting the team, he decided to stay on the team. That night he went home and shaved his legs to hide the fact that he was a boy, only to find out that the field hockey team was a coed team. The question is, should Sam continue wearing the skirt for his team uniform or wear shorts instead. In my opinion he shouldn’t have to continue wearing the skirt to feel like part of the team. The fact that someone was giving him positive reinforcement such as “that’s the spirit … Samantha” was all that he need to know to feel included. It wasn’t the skirt that made him feel good, it was the fact that people were cheering for him and were complementing him. By that logic he could wear the shorts and still feel the same way.