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bogdanovich [222]
2 years ago
11

2.5 What is the difference between relational understanding and instrumental​

Mathematics
1 answer:
Afina-wow [57]2 years ago
3 0

Answer:

Instrumental understanding – having a mathematical rule and being able to apply and manipulate it. Relational understanding – having a mathematical rule, knowing how to use it AND knowing why it works.

Step-by-step explanation:

Instrumental understanding involves “memorising which problems a method works for and which not, and also learning a different method for each new class of problems” (Skemp 1987, p. 159), is a desire to know “some kind of rule for getting the answer” (p. 155) so that a student can “latch on it and ignore the rest”

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Question 19
atroni [7]

Answer:

When Jon determined A(12), it means he must have found the amount in the account after 12 years. i.e. the amount when t = 12 years.

Hence, option (A) is true.

Step-by-step explanation:

<u><em>BACKGROUND KNOWLEDGE ABOUT EXPONENTIAL GROWTH</em></u>

We know that an exponential increase in Math can be termed as the rapid increase of an amount by percentage over a certain period of time.

It can be expressed using the formula

y = a (1+b)ˣ

here

y represents the final amount

a represents the original amount

b represents the growth factor

x represents the time that has passed

Now, let is us map our problem because it indicates the same concept.

<em><u>SOLVING THE QUESTION</u></em>

Given the function

A\left(t\right)=2000\left(1+0.0412\right)^{12t}

Here

A(t) represents the final amount

2000 represents the original amount

0.0412 represents the growth rate

t represents the number of years

Thus,

When Jon determined A(12), it means he must have found the amount in the account after 12 years. i.e. the amount when t = 12 years.

Hence, option (A) is true.

8 0
3 years ago
Simplify using the order of operations. (2 + 1) 3 ÷ 32 = 1 3 9 2
puteri [66]

Answer: I believe the answer is 0.1875. Must be a typo here, because...

Step-by-step explanation: parentheses first. (2+1)3%32=

After parentheses are taken out. 3x3%32= No exponents, so multiply or divide, whatever comes first.

6%32 is 0.1875

5 0
3 years ago
Which expression is equivalent to 5x+10y-15?
Papessa [141]

Answer:

Step-by-step explanation:

I think it's 5(x+2y-3)

5 0
2 years ago
Find the variable in xy=6b
Mkey [24]
Xy=6b
/y .  /y
x=6by
that is the answer because there is no true answer
3 0
3 years ago
Read 2 more answers
What is the product of 5/12 and 1/3
11Alexandr11 [23.1K]

Answer:

5/6

Step-by-step explanation:

6 0
2 years ago
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