Category: Education

Why Do Students Find Limit Calculation Difficult?

Student Struggling with Mathematical Problem

The purpose of algebra is to understand the symbols and then extract the answers from the equations. Most students, however, are unable to grasp this concept, which is why they have difficulties doing calculations. It is difficult for pupils to arrive at the correct solution when they have inadequate conceptualizations and fundamentals.

But don’t worry, since the limit calculator has eradicated all of the obstacles that academics have when solving mathematical problems.

This free limit solver can help you enumerate immediate results for limit issues, as the name implies. Students are uninterested in limits and arithmetic analysis since it is a difficult task. That is why our free tool rushes in to assist you immediately away. What do you think?

Anyway, let us now turn our attention to the pivot. Do you wish to look at the flaws that prevent pupils from learning about limit computations? If that’s the case, read on for more information.

Continue on!

Limits – Is That Something Horrible?

Students may find it difficult to implement the limit strategy at times. For all who are unsure what to do, there are four approaches for solving the restriction. Calculator-limit online.net’s calculator can assist you in determining which method to choose. When looking for the roots of a limit, you can utilize the factoring method.

Another problem is that children can’t tell the difference between rational and convoluted numbers. It becomes a significant issue for students when they are unable to devise a strategy to implement in their heads. The main reason for this is that the students are unclear about which method to take.

The limit calculator with steps helps students figure out what kind of number they’re working with and if they can get information about the number’s validity quickly. They’ll be able to deal with a specific problem and determine what kind of number they’re dealing with. If you utilize the limit evaluator and get an undefined number in the denominator, you can’t use the replacement strategy. Limit calculators can help us figure out which method to utilize, such as substitution, factoring, rationalizing, or the Least Common Multiple Methods.

The Factoring Technique:

The Limit solver can help you decide whether or not to apply the factoring technique. If we already know the function’s roots, we’ll use the factoring approach.

There are various reasons to employ the factoring approach in order to follow the factoring method’s solution:

 F(x)= x4x2-6x+9x-3,

 F(x)= x4x2-6x+9x-3,

 F(x)= x F(x)= x3x2-12x+36x-6,

 F(x)= x3x2-12x+36x-6,

 F(x)= x F(x)= x2x2-8x+16x-4,

 F(x)= x2x2-8x+16x-4, F(x)= x

 Take into account all of the functions; they can all be taken into account.

 x2-6x+9= (x-3) (x-3)

 x2-12x+36= (x-6) (x-6)

 (x-4) = x2-8x+16 (x-4)

 All rationalized roots functions and denominator-cut functions. To begin, we’ll seek these functions that have roots in the Limits calculator, and then we’ll utilize factoring to solve the limit.

The Rationalizing Strategy:

The rationalizing strategy is used when both factoring and substitution approaches fail to solve the limit.

Think about the following function:

 F(x)=x14x-7 -3x-14

 F(x)=x14x-7 -3x-14 F(x)=x14

 The function is incomprehensible when we implement the limit. As we can see from the fact that the denominator is ‘0,’ the Limit calculator makes the limit evaluator straightforward for us. It would make the limit as a whole unsolvable.

To find the counterpart of the x-7 -3x-11.x-7+3x-7+3, we’ll mix both the denominator and the numerator. As a consequence, students will be able to identify the limit.

Multiplying with the conjugate of the function makes the question considerably easy for the students.

The Replacement Approach:

In this part, we’ll go through a few examples to show you how to utilize the replacement approach to solve issues with constraints. This approach is also employed by a free online limit calculator. The replacement strategy should be utilized if the limit evaluator is still solvable. Examine the following function while applying the limit:

F(x)= x8x2-9x+18x-7

 F(x)= x8x2-9x+18x-7 F(x)= x

 We’ll use the replacement strategy to apply the limit evaluator in the preceding function because the limit is still solvable.

Now have a look at a function like the one below:

F(x)= x4x2-9x+5x-4

 F(x)= x4x2-9x+5x-4 F(x)= x

The denominator will become undefined when we construct the limit evaluator, which in this case is x4, and when we insert the limit evaluator in the function, the denominator will become ‘0’. The Limit calculator can help here since it allows us to examine whether or not a function is defined before setting a limit. The outcome of partitioning the numerator by the polynomial is an indeterminate function. We’ll take a different strategy in this circumstance.

Why Should You Use a Limit Calculator?

You may use the Limit calculator to get the upper and lower limit evaluator of variables. The limit finder, on the other hand, can assist you in identifying constraints by completing the instructions below

  • Start by entering the equations or functions.
  • From the drop-down menu, select the variable for which you want to establish a limit. Any of the following might be it: x, y, z, a, b, c, or n.
  • Set the threshold at which the limit will be determined. In this area, you may alternatively use a simple word like “inf=” or “pi =”.
  • Now is the time to choose the limit’s orientation. It has the potential to be both beneficial and destructive.
  • Once you’ve entered the values in the fields, the calculator will display an equation preview.
  • Just use the calculate button to do a calculation.

Last But Not Least:

We examined why limitations are a difficult strategy for kids to embrace in this guidepost. In addition, the usage of a limit calculator has been highlighted in the context in order to lessen the difficulties associated with this algebraic method. We hope that this article will prove to be a useful resource for students.

Additional Resources:

The importance of methodology to make learning mathematics easier.
Limits in differential calculus linking to derivatives.

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Limits in Calculus | Definition and Rules with Examples

Limits in calculus: Definition and rules with examples

In mathematics, limits are used to solve the complex calculus problems of various functions. It is mainly used to define differential, continuity, and integrals. Limits accomplished a particular value function by substituting the limit value.

Limits are very essential in a type of antiderivative known as definite integral in which upper and lower limits are applied. In this post, we’ll learn the definition and rules of limits with a lot of examples.

What are the limits in calculus?

In calculus, a value that a function approaches as an input of that function gets closer and closer to some specific number is known as limit. In other words, when a function approaches to some value to evaluate the value of limit of that function is known as limits.

To measure the nearness and representation of mathematical concept ideas, the limit’s notation can be used. It is very beneficial for defining other branches of calculus like derivative, continuity, and antiderivative.

The equation of limits

The formula or equation used to calculate the limits of the functions is given below.

limx→u h(x) = N

  • Lim is the notation of limits.
  • u is the limit value of the function.
  • h(x) is the given function.
  • x is the variable of the function.
  • N is the result of the function after applying the limit value u.

You have to apply the limit value u to the given function h(x), for solving the problems of limits. The limits are not applied on the constant functions so the limits of constant functions remain unchanged.

Rules of limits

There are various rules of limits in calculus. Let’s discuss them briefly with the help of examples to evaluate the limit problems.

1.   Constant rule

According to this rule of limits, the constant function remains the same. Because limits are applied only on the variables. The equation for the constant rule is:

limx→u C = C

  • Lim is the notation of limits.
  • u is the limit value of the function.
  • C is the given function.

Example

Find the limit of 56 as x approaches to 5.

Solution

Step 1: Apply the limit notation on the given function.

limx→5 56

Step 2: Now apply the limit.

limx→5 56 = 56 (by constant rule)

2.   Constant function rule

According to this rule of limits, the constant with the function will be written outside the limit notation. Because limits are applied only on the variables. The equation for the constant function rule is:

limx→u C h(x) = C * N

  • Lim is the notation of limits.
  • u is the limit value of the function.
  • C is any constant.
  • h(x) is the given function.
  • x is the variable of the function.
  • N is the result of the function after applying the limit value u.

Example

Find the limit of 23x3 as x approaches to 7.

Solution

Step 1: Apply the limit notation on the given function.

limx→7 23x3

Step 2: Now apply the constant function rule of limit.

limx→7 23x3 = 23 limx→7 x3

Step 3: Now apply the limit.

limx→7 23x3 = 23 (73)

limx→7 23x3 = 23 (7 * 7 * 7)

limx→7 23x3 = 23 (343)

limx→7 23x3 = 7889

3.   Sum rule

According to this rule of limits, the notation applied to each function separately. The equation for the sum rule is:

limx→u [h(x) + g(x)] = limx→u (h(x)) + limx→u (g(x)) = M + N

  • Lim is the notation of limits.
  • u is the limit value of the function.
  • g(x) & h(x) are the given functions.
  • x is the variable of the function.
  • M & N are the results of the functions after applying the limit value u.

Example

Find the limits of x3 + x5 as x approaches to 3.

Solution

Step 1: Apply the limit notation on the given function.

limx→3 [x3 + x5]

Step 2: Now apply the sum rule of limit.

limx→3 [x3 + x5] = limx→3 (x3) +  (x5)

Step 3: Now apply the limit.

limx→3 [x3 + x5] = (33) + (35)

limx→3 [x3 + x5] = (3 * 3 * 3) + (3 * 3 * 3 * 3 * 3)

limx→3 [x3 + x5] = (27) + (243)

limx→3 [x3 + x5] = 270

4.   Difference rule

According to this rule of limits, the notation applied to each function separately. The equation for the difference rule is:

limx→u [h(x) – g(x)] = limx→u (h(x)) – limx→u (g(x)) = M – N

  • Lim is the notation of limits.
  • u is the limit value of the function.
  • g(x) & h(x) are the given functions.
  • x is the variable of the function.
  • M & N are the results of the functions after applying the limit value u.

Example

Find the limits of x3 – x5 as x approaches to 2.

Solution

Step 1: Apply the limit notation on the given function.

limx→2 [x3 – x5]

Step 2: Now apply the difference rule of limit.

limx→2 [x3 – x5] = limx→2 (x3) + limx→2 (x5)

Step 3: Now apply the limit.

limx→2 [x3 – x5] = (23) – (25)

limx→2 [x3 – x5] = (2 * 2 * 2) – (2 * 2 * 2 * 2 * 2)

limx→2 [x3 – x5] = (8) – (32)

limx→2 [x3 – x5] = -24

5.   Product rule

According to this rule of limits, the notation applied to each function separately. The equation for the product rule is:

limx→u [h(x) * g(x)] = limx→u (h(x)) * limx→u (g(x)) = M * N

  • Lim is the notation of limits.
  • u is the limit value of the function.
  • g(x) & h(x) are the given functions.
  • x is the variable of the function.
  • M & N are the results of the functions after applying the limit value u.

Example

Find the limits of x5 * x3 as x approaches to 4.

Solution

Step 1: Apply the limit notation on the given function.

limx→4 [x5 * x3]

Step 2: Now apply the product rule of limit.

limx→4 [x5 * x3] = limx→4 (x5) * limx→4 (x3)

Step 3: Now apply the limit.

limx→4 [x5 * x3] = (45) * (43)

limx→4 [x5 * x3] = (4 * 4 * 4 * 4 * 4) * (4 * 4 * 4)

limx→4 [x5 * x3] = (1024) * (64)

limx→4 [x5 * x3] = 65536

6.   L’hospital rule

According to this rule, if the function forms 0 by 0 or infinity by infinity form after applying the limits then take the derivatives of the numerator and the denominator and then apply the limit value again.

Example

Find the limit of x2 – 4 / 4x – 2x2 as x approaches to 2.

Solution

Step 1: Apply the limit notation on the given function.

limx→2 [x2 – 4 / 4x – 2x2]

Step 2: Now apply the quotient rule of limit and apply the limit value.

limx→2 [x2 – 4 / 4x – 2x2] = limx→2 [x2 – 4] / limx→2 [4x – 2x2]

limx→2 [x2 – 4 / 4x – 2x2] = [22 – 4] / [4(2) – 2(2)2]

limx→2 [x2 – 4 / 4x – 2x2] = [4 – 4] / [4(2) – 2(4)]

limx→2 [x2 – 4 / 4x – 2x2] = [4 – 4] / [8 – 8]

limx→2 [x2 – 4 / 4x – 2x2] = 0 / 0

Step 3: As the functions make zero by zero form by applying the limit value, so apply the L’hospital rule and apply the limit value again.

limx→2 [x2 – 4 / 4x – 2x2] = limx→2 [d/dx (x2 – 4) / d/dx (4x – 2x2)]

limx→2 [x2 – 4 / 4x – 2x2] = limx→2 [2x – 0 / (4 – 4x)]

limx→2 [x2 – 4 / 4x – 2x2] = limx→2 [2x / (4 – 4x)]

limx→2 [x2 – 4 / 4x – 2x2] = [2(2) / (4 – 4(2))]

limx→2 [x2 – 4 / 4x – 2x2] = [4 / (4 – 8)]

limx→2 [x2 – 4 / 4x – 2x2] = [4 / (– 4)]

limx→2 [x2 – 4 / 4x – 2x2] = -1

Summary

In this post, we have learned the definition and rules of limits with a lot of examples. Now you can grab all the basics of limits just by following the rules of this post.

Explore These Additional Math Resources (Parents, Teachers and Students)

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What Are the Biggest Obstacles to Learn Coding For Kids

Kids Learning How to Code

Coding is a subject and field of study that most kids across the globe get recommended in their curriculum. Research on the skills and mindset of a child suggests and reveals that programming languages have immense benefits for them. It can help develop their cognitive, problem-solving, and decision-making abilities.

In addition, it aids in enhancing their persistence and tenacity.  However, coding for kids can involve some obstacles. These problems may hinder their progress or even decrease their interest in the worst cases.

In this article, let us discuss the most significant issues a child may face when learning to code.

Increased Focus on Coding Syntax

Coding for KidsCoding involves the implementation of an algorithm into a code. It can get done with the help of a programming language. Thus, the system and process work using an appropriate syntax. It depends on the chosen programming language.

The syntax ensures the smooth running of a code. Nevertheless, the essence of the subject lies in problem-solving skills. The abilities show their color when a running or syntax error arises. However, most courses, students, and even teachers do not pay much attention to this essential skill. Instead, they focus more on the syntax.

Lack of Live Help

It is possible to learn coding from various online courses. On top of that, the compilers and debuggers help detect and rectify the errors that arise along the way. However, learning in this process proves exceedingly taxing and time-consuming. In addition, a kid may lose interest in the subject because of the multiple failures they face.

For that reason, it is necessary to get the guidance of a reliable and experienced teacher when learning to code. It helps sustain a kid’s interest and engagement in the subject. However, it is arduous nowadays to find a teacher who remains willing to put in their utmost effort. Moreover, the events of recent months has dissuaded the instructors from teaching in real-time.

Less Practice

The skill and knowledge of coding revolve around extensive practice. Nevertheless, most online courses or offline instructors focus on the teaching part. They omit the practice section and time entirely. It proves detrimental to the development and growth of the student. On top of that, some kids may not get the platforms required to run their programs and codes. In such cases as well, they face an issue. It can get owed to the lack of hands-on experience and visual perception of the running process and output.

Low Motivation and Engagement

One of the most significant obstacles for kids when learning to code is low motivation, dedication, and engagement. In most cases, they remain disinterested in the subject and fail to develop an attraction and appeal no matter how much they get involved with it. It may be the scenario even if the course or instructor allows for maximum comfort, convenience, or effortlessness in the learning process and journey.

Tendency to Forget

It is not uncommon for someone to forget what they have learned about something. Kids learning to code is no exception. They may acquire knowledge about the subject and segregate it into their short-term memory. It implies that they cannot retain the ideas and concepts for long. Such an issue gets enhanced by the lack of practice.  

How Can a Kid Overcome Obstacles When Learning Coding?

How Kids Can Learn Coding

Issues and obstacles are bound to appear when learning something new. However, what matters are the ways and methods to overcome them. It implies that even kids can do that.

For instance, a child can strengthen their memory if they tend to forget things fast. Additionally, they can overcome their lack of practice on a computer platform by writing the programs and code by hand. Initially, the hand-written material would help to build their fundamentals. Then, when they get a required platform, they can run them there to check.

One of the benefits of coding for kids is increased focus as the engage in learning.  This can help overcome a lack of motivation by incorporating fun and exciting codes and outputs. It would make kids look forward to completing their work. Kids can develop their problem-solving skills by playing various games like chess, cross the bridge, etc. Lastly, it is possible to seek live help or instructors by searching the internet or through acquaintances.

7 Things To Consider Before Joining Online Coding Classes For Kids

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How to Help Children Focus During Online Learning

ow to Help Children Focus During Online Learning

Most schools have now reopened and many children are reaping the social and educational benefits of in-person learning.  However, if your child thrived through online learning or is immunocompromised, it might be a good idea to keep them enrolled in a remote-learning school.

Additionally, school closures for things like snow days are now a thing of the past — teachers and students alike are well set up to offer online learning in lieu of physical classrooms.

If you’re a parent to a school-aged child, you simply must know how to help your child focus during online learning. Here are a few of the best practices to consider.

A Dedicated Space

Children may have a hard time separating their educational career from their personal life when learning at home. This is understandable, as we would all struggle to focus if our favorite toys or TV programs were just a few feet out of view. You can help children avoid distractions by creating a dedicated space that facilitates learning and engagement.

The space you choose for an at-home classroom will largely be dependent on the layout of your home. In general, though, your child will do best in a room where you can observe them, yet they feel as though they have privacy and are able to contribute to class discussions without worrying about being too loud.

The space you choose should also be completely free of clutter. Clutter is a major distraction for kids during classes they don’t enjoy, and can even pose a health hazard to younger children. You can declutter your home by intentionally organizing everything you own, and giving everything its own place. You should also try giving your child a home-desk, where they can store all their learning materials.

Fidgeting

Fidgeting is entirely normal behavior for children and adults alike. Some research even suggests that fidgeting and fidget toys can help children relax and focus during classes. However, as a parent, you probably have a good idea of when your child is fidgeting due to boredom or to distract themselves.

You can embrace productive fidgeting by providing your child with the kind of fidget toy or stimulus that suits their kind of fidgeting. For example, if they are body fidgeters, you can give them an exercise ball to sit on for part of the day, Alternatively, if you find that your child has a busy mouth, and likes to click or blow bubbles when they should be learning, you can give them caffeine-free tea to keep them occupied and well hydrated throughout the day.

Online Learning for Kids

Focus Throughout the Day

The hardest part about school is that children are expected to retain a high level of focus throughout the day. Unlike us adults, who are able to front-load more difficult work in the morning when we have more focus, children have to complete complex tasks in classes like math or literature regardless of the time of day or how they feel.

You can help your child retain their focus throughout the day by giving them brain breaks between classes or during their lunchtime. Ideally, these brain breaks will not involve screens and will get them up and moving. For example, a walk around the block, or even allowing them to help cook lunch will take their mind off learning, and help them return to the classroom with greater focus.

You also need to be aware of the food your child is eating, and how much water they are drinking. Typically, a school day diet should consist of whole foods with antioxidant-rich berries, protein sources, leafy greens, and plenty of water to keep them hydrated.

Testing for ADHD

Sometimes seeking help is the best thing you can do for your child. It doesn’t take much to have your child tested for ADHD, and the stigma around mental health conditions is finally being challenged and reversed in most areas of society.

According to the CDC, the symptoms of ADHD include inattention (difficulty organizing tasks, failure to pay close attention during classroom activities, forgetfulness during daily activities, etc.) and hyperactivity or impulsivity (fidgets or squirms in seat, talks excessively, interrupts conversations frequently).

The diagnosis of ADHD is typically made by your primary healthcare provider, who can then offer a range of treatment options that usually involve either behavioral and environmental changes or medication.

As a parent, it’s important to recognize that testing your child for ADHD does not mean you’ve “failed” them. You’re doing the right thing by reaching out to professional medical advice, and are showing your child that it’s ok to seek help when they need it.

Conclusion

Online learning can be great for children who struggle in traditional classrooms or aren’t able to return to a physical school environment.

However, maintaining a high level of focus throughout the day can be difficult — particularly if your home environment isn’t conducive to learning. You can help your child focus during remote classes by removing distractions from their at-home classroom, and by decluttering their space regularly. You should also reconsider the food you give them, and opt for focus-friendly whole foods that help them stay on track and engaged in their learning experience.

About the Author
About the AuthorKatie Brenneman is a passionate writer specializing in education, mental health, family lifestyle and online safety. When she isn’t writing, you can find her with her nose buried in a book or hiking with her dog, Charlie. You can follow her on Twitter.


Teachers:  Discover  online class productivity tips to help keep kids engaged.

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