Oboe Straw Experiment

Name: Faaiua And Calvin

Title of experiment: Straw oboe experiment

Question:

(What do we want to find out?)

We want to find out if the oboe straw will make a funny noise. We also need to find out if the pitch goes higher or lower when we cut the holes in the straw. We also need to find out what is making the noise?? Plus we want find out what makes the straw lower when we add the straw on each straw.

Hypothesis:  (what do you think will happen?)

I think that the straw is going to make the funny noise and when we cut the tiny holes the pitch is going to go higher.

Procedure:

How will we find out?

(Step by step)

First step : flatten the back or front end.

Second step : cut the front or the back of the straw but make sure the end is pointy.

Third step : Blow the into the straw as hard as you can and it will make a funny noise if it doesn't that means you're not blowing hard enough or you cut it wrong.

Extra for experts : make little tiny holes in your straw and play it like a Saxophone or an flute.

Results:

What actually happened?

Once we got our straws, we flattened the end of the straw. After we got the scissors, we pierced through the flattened end and then when we unflattened the end of the straw. It looked very good. I held it up and then inserted it on my mouth. We blew as hard as I can into the pierced part. It did not work...... We blew again and guess what..... IT WORKED!!. Couple of minutes after everyone did it which then went annoying. But it still works.

Conclusions:

What did we learn?

I learnt a lot of stuff today. The first thing I learnt to make was an oboe straw. Second thing I learnt was that the vibration of air tubes is the mechanism for sound production in virtually all wind instruments. Plus when adjusted properly, the flattened of the straw will vibrate as air flows over them.

Questions:

1. What is producing the sound?

The air. Thats going inside the straw and the vibration of air tubes is the mechanism for sound production in virtually all wind instruments.

2. What pitch did we get when all holes were closed, compared to when the holes were open?  When the holes were closed the pitch was low. But when the holes were open it was annoying and high.

3. What does opening or closing a hole in the straw really mean in terms of vibrating an air column? When the holes are open and you blow it, the bottom of the straw is vibrating which travels out high sound waves. And when the holes are closed it still vibrates but it sends out low sound waves

Algorithm, How To Solve Multiplication Problems

Word Web- Accomplish

Within Strategy, Presentation

Consolidation

Mult/Div consolidation

1. George was driving to Lake Taupo from Auckland. Lake Taupo is 407 kms away from Auckland and he had to do the trip three times a week for work. Assuming

there are 4 weeks in a month. How many kms did he drive in total in 1 month?

407×3=1221

7×3=21

3×0=3

3×400=1200

1200+21=1221

2. Janine had 17 jars of jelly beans each with with 364 jelly beans inside. How many jelly beans did she have in total?

17×364=6188

17×4=68

17×60=1020

17×300=5100

5100+1020+68=6188

3. The temperature on Mercury is 206 degrees celsius. However the sun is 14 x that temperature. How hot is the sun?

206×14=2884

14×6=84

14×0=0

14×200=2800

2800+0+84=2884

4. Jake had $675 to go shopping for his birthday. He shared his birthday money between himself and 2 of his friends, how much money did each of them get?

675÷3=

Part the 675 to make it easier.

600÷3=200

60÷3=20

Remainding 5

200+20+r5=220r5

5. Mike had 275mls of milk in his carton. He drank this amount of milk 3 times a week. How much milk does Mike drink in one week?

What about two weeks?825

A month?1650

One year?3300

6. Jane bought two new pairs of shoes every 3 months. How many pairs of shoes did she have after one year? 8 Brand shoes

7. How many pairs did she have after 10 years? 96 brand shoes

9. The class table was 600cm. The table was shared between 12 students. How many cm of the table did each student have to use?

600÷12=50

10. Michael knew that to qualify for the running championships he would need to beat 13.2 seconds to run 150 meters.

Michael ran everyday for one year. How many meters did he run in total?158.4

What about only six months? 79.2

11. Jane knew that he parents would deposit $1.50 per day in to her bank account. How much money was in her account after 3 years?$54

What about 12 years?216

Alphabet Multiplication

Division Problems With Remainders

Thinkboard Maths Week 4

Echolocation Explaination

Echolocation is a unique process that animals such as bats use to hunt and feed at night. They find their way by sending out ultrasonic sounds. When the sounds hit objects they bounce back, creating ultrasonic images like a radar. There are other animals that use echolocation, for example, Dolphins, Whales, Porpoises and Rats.

Echolocation initially starts from the bats vocal cords. Whales use their blowhole to communicate to other whales. The whales use their blowholes for many occations such as breathing and communacting with each others. Sounds that whales make, vibrates throughout in the water and locates to any other object or other animals. Bats hunt by using echolocation. Bats can hear any insects that are moving around in the dark by their large ears. Which they then scoop it out of the air and into their mouth. Isn’t that amazing!!.

Echolocation is just like echoes in a large empty room. When you yell it would be duplicating you. Do you know how echoes work?. When you talk to a hard thing such as a stone, rock or a stone wall. It will bounce right back to you but if you talk to a pillow it will not bounce back it will go right through it. The echo will reapeat about 4 to 6 times.

Multiplication In Parts DLO

Hi, Its Faaiua. Today im gonna be showing you a new strategy that i've learnt and its Multiplication In Parts. I hope you enjoy.

By Faaiua

http://www.educreations.com/lesson/view/multiplacation-in-parts/21882083/

Division In Parts Maths

Word Web-Walked

Consolidation Mult/Div

Mult/Div consolidation

Hex/Oct

1. George was driving to Rotorua from Auckland. Rotorua is 344 kms away from Auckland and he had to do the trip three times a week for work. Assuming there are 4 weeks in a month. How many kms did he drive in total in 1 month?

344×4=1376

4×4=16

4×40=160

4×300=1200

1200+160+16=1376

2. Janine had 12 jar of jelly beans each with with 273 jelly beans inside. How many jelly beans did she have in total?

12×273=3276

12×3=36

12×70=840

12×200=2400

2400+840+36=3276

3. The temperature on Venus is 173 degrees celsius. However the sun is 15 x that temperature. How hot is the sun?

173×15=2595

15×3=45

15×70=1050

15×100=1500

1500+1050+45=2595

4. Jake had $750 to go shopping for his birthday. He shared his birthday money with 2 of his friends, how much money did each of them get?

750/2=375

5. Mike had 300mls of milk in his carton. He drank this amount of milk 4 times a week. How much milk does Mike drink in one week?

What about two weeks?2400

A month?4800

One year?2400

6. Jane bought a pair of shoes every 2 months. How many pairs of shoes did she have after one year?

2×12=24

2×2=4

2×10=20

20+4=24

7. How many pairs did she have after 10 years?

2×120=240

2×0=0

2×20=40

2×100=200

200+40+0=240

9. The class table was 400cm. The table was shared between 8 students. How many cm of the table did each student have to use?

400×8=3200

8×0=0

8×00=0

8×400=3200

3200+0+0=3200

10. Michael knew that to qualify for the running championships he would need to beat 11.7 seconds to run 100 meters.

Michael ran everyday for one year. How many meters did he run in total?400×100=40000

What about only six months?20000

11. Jane knew that he parents would deposit $1 per day in to her bank account. How much money was in her account after 5 years?

What about 10 years?

1×20=20

40×1=40

Maths Multiplcation In Parts With Larger Numbers

Alphabet Multiplication

Sound Explanation Writing

For Inquiry this term we are learning about sound and how it travels. This explanation will explain sound. Sound is a vibration, When you talk, your vocal cords vibrate and it travels through sound waves which goes into your eardrum and then it is transferred by your brain which says “Hey, I recognize that sound.”

Once something gets hit. The sound waves travels and it goes into your eardrums which then transfers it into your brain then goes I recognize that sound. Once a material is hit the sound waves moves forward and it hits the molecules. Once the material stops vibrating, the sound waves fades and the molecules comes back into their formation. And when the molecules are back in formation, they wait until something else gets hit.  Sound waves travel through the air, high pitch sound wave is closer and the low pitch is further apart. Both sound waves travels the same, Can we see sound waves? No, we can’t see sound waves. Both low pitch and high pitch travel the same speed.

If our world didn’t have sound it would be boring. If someone tries to talk no one will be able to hear him and if you're playing an instrument like a drum, it will sound like air drums. It’ll be like wearing ear muffs. But in the other hand it’ll be quite cool without sound because if you were in a school or an office with no sound it’ll be full of silence and that means you can focus on doing your work.

Maths Master Thinkboard Week 3

Alphabet Muliplication

Maths Week 2 Presentation

Alphabet Addition #2

Thinkboard Maths Week 2 #2

Thinkboard Maths Week 2

Alphabet Addition

Each number in the alphabet equals a number, here is your key.

You need to add the numbers in the words together to find your answer.

A = 1

B = 2

C = 3

D = 4

E = 5

F = 6

G = 7

H = 8

I = 9

J = 10

K = 11

L = 12

M = 13

N = 14

O = 15

P = 16

Q = 17

R = 18

S = 19

T = 20

U = 21

V = 22

W = 23

X = 24

Y = 25

Z = 26

Vibration - 22 + 9 + 2 + 18 + 1 + 20 + 1 +  15 + 14 = 102

Maths - 13 + 1 + 20 + 8 + 19= 61

Sound - 19 + 15 + 21 + 14 + 4= 73

Molecule - 13 + 15 + 12 + 5 + 3 + 21 + 12 + 5=86

Experiment - 5 + 24 + 16 + 5 + 18 + 9 + 13 + 5 + 14 + 20= 129

Pitch - 16 + 9 + 20 + 3 + 8= 56

Transferred - 20 + 18 + 1 + 14 + 19 + 6 + 5 + 18 + 18 + 5 + 4=128

Movement- 13 + 15 + 22 + 5 + 13 + 5 + 14 + 20= 107

You need to add each number in these words and find out what they equal in numbers.

102 + 61 + 73 + 86 + 129 + 56 + 128 + 107= 742

Triangle Decimals

Word Web-Worry

Sound Experiment

Maths Decimals

A) 2.5+3.9=6.4   -0.1 +0.1 2.4+4=6.4	F)13.7+4.5=14.2   +0.3 -0.3 14+4.2=18.2	K)7.3+7.5=14.2  -0.3  +0.3 7+7.8=14.8
B) 4.6+1.8=6.4    -0.2 +0.2 4.4+2=6.4	G)5.8+4.6=10.4   +0.2 -0.2 6+4.4=10.4	L)11.1+6.8=17.9   -0.1  +0.1 11+6.9=17.9
C)3.1+6.3=9.4   -0.1 +0.1 3+6.4=9.4	H)9.9+4.6=14.5   +0.1 -0.1 10+4.5=14.5	M)5.8+9.3=15.1   +0.2 -0.2 6+9.1=15.1
D)2.8+2.5=5.3   +0.2 -0.2 3+3.3=5.3	I)6.6+8.8=15.4  -0.2 +0.2 6.4+9=15.4	N)7.2+8.4=15.6   -0.2 +0.2 7+8.6=15.6
E)4.8+6.7=11.5   +0.2 -0.2 5+6.5=11.5	J)4.2+5.8=10  -0.2 +0.2 4+6=10	O)13.5+8.9=22.9    -0.1  +0.1 13.4+9=22.9
A)6.5+8.1=14.6	D)4.8+12.3=17.1	G)9.8+8.8=18.6
B)9.3+7.4=16.7	E)7.7+2.6=10.3	H)7.3+12.4=19.7
C)6.7+8.3=15	F)12.4+12.9=25.3	I)15.3+3.7=19
3.7+7.8=11.9 -0.2 +0.2 3.9+8=11.9	45.6+4.8=50.4 -0.2  +0.2 45.4+5=50.4	1.3+0.3=1.6 -0.3 +0.3 1+0.6=1.6
14.4+13.6=28 -0.4  +0.4 14+14=28	4.6+12.3=16.9 +0.3 -0.3 4.9+12=16.9	14.5+12.2=16.7 +0.2   -0.2 14.7+12=16.7
33.4+7.5=40.9 -0.4 +0.4 33+7.9=40.9	1.6+1.3=2.9 +0.3 -0.3 1.9+1=2.9	37.3+19.8=57.1 -0.2   +0.2 37.1+20=57.1