Math Inquiry

10/27/2021

Today we had our final soccer evaluation and then students worked hard on their classroom French posters. Students even began using the French from the posters in class today. That was amazing. In math, we did an inquiry into how to prove factors and multiples using pictures and words. Students had some great strategies an explanations.

IMPORTANT: Sign up for a conference next week. Get your parents to check their emails to sign up. I also posted the link to the sign up page on Fresh Grade.

1.) MATH: Unit test Friday

2.) WORD WORK: Test Friday

3.) FRENCH: Poster plan due Friday

4.)POST A RESPONSE:

Make up 5 math questions to help you study for the test.
The questions should be from at least 3 different learning intentions below.
Post the 5 questions here questions here
Answer 5 questions posted by other studnets.

VLN Math Studnets: Your job is to check the answers to the questions and to make sure they are correct. If they are correct mark them as correct, if the answer is not correct, give feedback to help support learning or give ways to improve the answers.

#THELEARNINGNEVERSTOPS!

Ethan

10/27/2021 05:43:01 pm

Kaitlin

10/27/2021 05:43:03 pm

first! finally

10/27/2021 05:43:39 pm

dang 2 seconds late, guess i'm second

10/27/2021 05:44:02 pm

10/27/2021 05:43:40 pm

Ur 2

cindy

10/27/2021 05:43:30 pm

me.fisher a, i supposed to mark the startup assignment? if so where’s the answer sheet? they didn’t send it back yet.

10/27/2021 05:47:57 pm

sorry i meant to say mr. fisher am i but i don’t have autocorrect on and my keyboard is tiny

Rhea

10/27/2021 10:08:34 pm

@Cindy Hi just popping in here... Ms. Baker will mark the Startup Assignment herself and send the mark to you, so you don't need to mark it yourself. :)

Sonia

10/27/2021 05:59:32 pm

1. What are the prime factors of 48?
2. If a number is even why must if be divisible by 2?
3. Explain us using words why 68 is not divisible by 6.
4. How do you find all the factors of a number using prime factorization?
5. What is the divisibility rule for 9?

Austin

10/27/2021 06:15:06 pm

1. The prime factors of 48 are 2,2,2,2 and 3
2. An even number must be divisible by 2 because if you count by 2s it will always be an even number
3. 68 is not divisible by 6 because if you use the divisibility rule it is divisible by 2 but not 3 so it is not divisible by 6
4. By using prime factorization you can get almost all the multiples of that number by multiplying the prime factors
5. The divisibility rules for 9 is if all the digits add up to 9 it is divisible by 9

Waylon

10/27/2021 07:02:33 pm

1: Correct, but you only need to write 2 once.
2: Correct.
3: Correct.
4: Partially correct, by using prime factorization you can get all the prime factors. Then, multiply all of the prime factors in every way possible to get the rest of the factors.
5: Incorrect, the divisibility rule for 9 is if all the digits add up to a number divisible by 9 it is divisible by 9.
Good job.

Leah

10/27/2021 06:56:29 pm

1. 2,3,4,6,8,24,

2. Because the possibilities for 2 to be divisible is 2,4,6,8,0, which are all even numbers.

3. Because if you keep on counting by 6’s, you’ll never get to the number 68.

4.
1) Make a factor tree
2) Draw a line (vertically)
3) Multiply all the prime factors together
4) On one side, put all the prime factors and the products (of your multiplication equation) and divide the big number by the numbers on the other side.
5) When your done put all the numbers you got on the bottom
6) Whatever is on the bottom are all the factors of a number.

5.
1) Add all the digits of the number.
2) If the sum of the digits is divisible by nine, then so is the number.

Elton

10/27/2021 08:58:25 pm

For question 1, Sonia said PRIME factors, didn't she?
That's my only feedback.

10/28/2021 06:21:05 pm

1. 2 & 3
2. The possibilities for 2 is 2,4,6,8,0.
3. If you keep on counting by 6s, you’ll never make it to 68.
4.
1) Make a factor tree.
2) Draw a line (vertically).
3) Multiply the prime factors into different equations.
4) On one side, put all the prime factors and the products on one side of the line.
5) Divide the big number from the other numbers.
6) Write down all the numbers you got on the bottom.
7) The numbers you got on the bottom are all the factors of the big number.

5.
1) Add all the digits of the number.
2) If the sum of the digits is divisible by 9, then so is the number.

10/27/2021 06:09:00 pm

1. What is the LCM of 99 and 66
2. What is the GCF of 45 and 60
3. What are the prime factors of 70 and 110
4. If 24 is a multiple of 48 then is 6 also a multiple of 48
5. What is the divisibility rule for 3

Kevin

10/27/2021 06:11:17 pm

1. What is the divisibility rule for 3?
2. What are the prime factors of 88?
3. If a number is even why must if be divisible by 2?
4. Explain us using words why 7 is not divisible by 6.
5. How do you find all the factors of a number using prime factorization? And why is that?

Timothy

10/27/2021 06:22:49 pm

bruh read your par Kevin

10/27/2021 06:28:18 pm

Can you answer?

Aliyah

10/27/2021 06:27:46 pm

What’s the divisibility rule for 8?
What’s the prime factorization for 58?
What’s the LCM for 44 and 68?
What’s the GCF of 61 and 31? How do you know?
Explain by using words why 77 is not divisible by 3?

10/27/2021 06:30:26 pm

1. find the GCF and LCM of the following pair of numbers.
show your work.

68 46
LCM
GCF

2. Kevin says that 60 is divisible by 5 is he correct? If so, explain why.

3. Represent 62 in the three different forms.

4. are the following numbers divisible by 5,9 or 2?

60
70
81
72

5. explain why 208 can be divided by 2 in pictures

10/27/2021 06:38:31 pm

1. What is the divisibility rule for 6 in words?
2. What is prime factorization?
3. What is one example of how you can explain of how to determine LCM and GCF?
4. If 33 is a factor of a number, is 3 a factor too?
5. How can you explain how the divisibility rule for 4 works?

Emily

10/27/2021 08:53:37 pm

1. If the number is divisible by 2 and 3, it is divisible by 6.

2. Prime factorization is breaking down a number into its prime factors using a factor tree.

3. Make a Venn diagram with all of the prime factors of the two numbers. You can find the GCF of two numbers by multiplying the numbers in the overlap (the common prime factors) together. You can find the LCM of two numbers by multiplying all of the numbers in the Venn diagram together.
Example: Find the GCF of 20 and 30. Using prime factorization, the prime factors of 20 are 2 x 2 x 5. The prime factors of 30 are 2 x 3 x 5. The common factors are 2 and 5. 2 x 5 = 10, so the GCF of 20 and 30 is 10.
Example 2: Find the LCM of 20 and 30. If you had a Venn diagram, all the numbers in it would be 2 x 2 x 3 x 5, which equals 60, so the LCM of 20 and 30 is 60.

4. Yes, because 33 is a multiple of 3.

5. 100 is divisible by 4, so the hundreds digit and above are all divisible by 4. Then, you only need to look at the tens and ones digits. So, if the last two digits of a number are divisible by 4, the whole number is divisible by 4.

10/27/2021 06:39:14 pm

1Q: Can 10434 be divided by 6?
1A: The final digit (4) is even, so the whole number is divisible by 2. 1 + 0 + 4 = 5, 5 + 3 = 8, 8 + 4 = 12, 12 is divisible by 3 so the whole number is divisible by 3. Since the number is divisible by 2 and 3, it's divisible by 6.

2Q: What is the divisibility rule for 4?
2A: If the last two digits of a number are divisible by 4, the whole number is divisible by 4.

3Q: What is the expanded form of 861?
3A: 800 + 60 + 1.

4Q: What are 5 factors of 150?
4A: 3, 50, 5, 30, 10

5Q: Use the prime factorization method to find the GCF and LCM of 26 and 34.
5A: GCF: 2 LCM: 442

26 = 2x13, 34 = 2x17
26 | overlap | 34
13 | 2 | 17
(2x13)x17 = 26x17 = 442

(hope it's okay that my dad "inspired" the questions)
(also i may not be correct haha)

10/27/2021 06:41:19 pm

i didn't see the success criteria properly aaaaaaaa
sorry, you can still answer if you want i guess??

Palin

10/27/2021 06:49:03 pm

1 find the greatest common factor of 90 and 60

2 is 999 divisible by 6?

3 find the lowest common multiple of 5 and 15

4 find the prime factors of 36

5 what is a prime number? What is a composite number?

10/27/2021 10:35:16 pm

1. It is 2
2. No
3. 15
4. 1,379 and 69
5. A prime number is a number that can only be divisible by 1 and itself.
A composite number is made up of prime numbers

Jasmine

10/27/2021 06:51:16 pm

1: What is the divisibility rule for 8
2: What is the prime factorization for 24
3: What is the GCF of 24 and 30
4: What is the LCM of 24 and 30
5: What is the divisibility rule for 6

vyom

10/27/2021 06:53:36 pm

1.what is the divisibility rule for 5
2.what is the LCM of 50 and 60
3.what are the prime factors of 45
4.what is the GCF of 21 and 32
5. why is 99 divisible by three

Kaila

10/27/2021 07:27:16 pm

Q1; any thing that ends in 5 or 0
Q2:The LCM of 50 and 60 is 300
Q3:the prime factors of 45 are 1,3,5,9,15
Q4:the GCF of 21 and 32 is 1
Q5:99 is divisible by 3 because if you keep adding up 3 you will eventally get to 99

Alison

10/27/2021 08:08:44 pm

Q.1 Correct
Q.2 Correct
Q.3 Correct
Q.4 Correct
Q.5 Correct, but you could also explain by explaining how the divisibility rules for three work and apply it to the question

10/27/2021 07:05:19 pm

Do VLN students mark all of the answers?

Mr. Fisher

10/27/2021 07:07:51 pm

@Waylon- You only need to do 5 but if you have time you can do more:)

Ian

10/27/2021 08:17:05 pm

1. What is the LCM of 78 and 88
2. What is the GCF of 49 and 89
3. What are the prime factors of 9 and 18
4. If 2 is a multiple of 24 then is 6 also a multiple of 24
5. What is the divisibility rule for 3

10/27/2021 08:23:19 pm

Q1: what is the divisibility rule for 9?
Q2:how do you know a number is divisible by 4?
Q3:what is the prime factorization of 46?
Q4:what is the GCF of 26 and 30?
Q:what is the LCM of 32 and 40?
Q5:what is the expanded form of 5683?

10/27/2021 08:58:54 pm

1. What is the divisibility rule for 8?
2. Explain why the divisibility rule for 3 works.
3. What is the prime factorization of 145?
4. What is the GCF of 36 and 70? Explain your thinking.
5. What is the LCM of 64 and 80? Explain your thinking.

10/27/2021 08:59:57 pm

1. What is the divisibility rule for 5.
2. What are the prime factors of 6 and 12
3. What is the GCF of 87 and 97.
4.why is 69 divisible by 3.
5.what is the LCM of 34 and 69.

Angad

10/27/2021 09:06:54 pm

1.What is the divisibility rule for 3?
2. What are the prime factors of 78?
3. What is the GCF for 36 and 46? Show your thinking.
4. What is the LCM for 28 and 49?
5. Why can't 36 be divided by 7? Explain in words.

10/27/2021 10:37:12 pm

Oh wait i didint see intructions correctly
Im supposed to mark the answers.. ohhh that makes more sense
Woops

colleen

10/28/2021 10:26:59 pm

What are the divisibility rules for 2 and 5?
What are the divisibility rules?
What is the LMC for 52 and 67
What is the GMC for 83 and 44
What are the prime factors for 61

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