Karen's Scribe!

Today in class we had to finish our find our missing piece tab, in our pythagoras booklet. We had three questions and this one was one of the questions that we had to do.

Using the square numbers from 12² - 20² to find a Pythagorean Triple.

Our class figured that 12, 13, and 20 we the number that worked for a Pythagorean Triple.

judy's scribe

Today in class, we finished our "Word Problems" tab in our Pythagoras book. We added 3 more word problems, known as problem A, problem B, and the bonus problem. I'm going to scribe about problem B:
You’ve just picked up a ground ball at first base, and you see the other team’s player running towards third base. How far do you have to throw the ball to get it from first base to third base, and throw the runner out?

What are we trying to find? The distance from the first base to the third base.

1/2 of the diamond is a right angle triangle, and the length of two sides are given. That means we can use the Pythagorean theorem to find the distance from first base to third base.

(The side that we are trying to find is across the right angle, so it's the hypotenuse, c.)
formula to find the hypotenuse:
a² + b² = c²
we know that...
a=90
b=90
c=?
plug in the numbers, and follow the formula:
a² + b² = c²
90²+ 90²= c²
8100+8100=c²
16 200=c²
..........then you have to find the square root of 16 200 to find the square root of c², which is c
√16 200 = √c²
127.27= c

You'll have to throw the ball 127.27ft to get it from first base to third base.

Karen's Scribe

In class we finished our Pythagoras tab thing.



We started by finishing the Proof #1 tab.

Using the dotted paper we cut out 3x3, 4x4, and 5x5 squares.

After we put the squares together to make a right angle triangle in the middle.

The we showed how 3²+4²= 5² . This follows the formula a²+b²= c²

Then we had to cut out another 3x3, 4x4, and 5x5. We had to color 3x3 and 5x5 the same color. After we had to glue the 4x4 on top of the 5x5.

It should look like this. We had to describe what it could be showing. Like a little math formula its showing.


Here its showing that the 4² covering the 5². When you look at it you can say that the formula your seeing is: 5² - 4² = 3² or c² - b² = a²



After this tab we started on a new tab called Find the missing side.


The pythatgorean theorem a² + b² = c² can be rearranged and written:


Then we got a picuture and we had to figure out what the answer was.



Here is what were going to do..
Fill in what you know....
Now change the square numbers into what they equal..
Then you subtract the numbers...

Find the square root....
Then the square root equals B!

JR'S SCRIBE

Today in class we learned more about dividing fractions. . .

Charmaine's Scribe

Charmaine and Kathleen's Scribe

Today in class we learned about dividing fractions and
how to do it correctly. We used a ratio table method to
solve these questions that we are about give you.

Now we are going to answer these questions together
one step at a time:
step one;

Make a ratio table and make the two signs cans/rooms



We showed all the steps in the voicethread and sort of try to explain
the steps on the easiest way possible.


By Charmaine And Kathleen

gail's scibe

I did my scribe using the "voice thread" :)