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Many people are afraid of math problems. Why is that? Maybe it’s because they remember that they had previous trouble with math problems. Or they think that they can’t understand math problems because math problems are “too hard”, “I can’t do this” Or they don’t know how to unravel the problem to find out what the real question is. If I don’t solve the problem in 2 minutes they think they will never will get it. Or they simply don’t know where to start.These are typical thoughts of what teachers think students have about problem solving. I do tend to agree with many of them to an extent but I think there is a bigger problem here. I believe that we have made our students believe this, it’s our fault!Possible causes for these conceptions:
Problem solving shouldn’t be measured on TESTS
Time limits (ask any professor at your at your local University how long s/he works on a problem for, probably the reply will be months to years, not seconds to minutes)
Teachers think they know all the answers  
Teachers are bad models, they always give a perfect answer
What Is Problem Solving?Problem solving is a process (not the answer) which occurs when a set of conditions are given and a goal is given, but the means to achieve the goal must be developed by the solver.
Given the choice – what do you want to do… Let the solver brings something to a task
I believe that there should be more failure before there is success (months of it)
We should leave the traditional problems behind and move onto more creative/process type problems in math
The Traditional Problem: The conditions –> a few strategies –> Goal Example: “Several sugar cubes are stacked two high, four wide, and four deep. How many sugar cubes are used in all?”  The Creative Problem: The conditions –> a few strategies for each –> Multiple Goals Example: “Create as many different rectangular prism solids as you can using 32 sugar cubes.”  The Process Problem: Much like the creative problem, except emphasis is placed on the process of solving while little is placed on the goal or solution. Justify your answer, creativity is emphasized! Example: “32 sugar cubes were stacked to create a shape that looks like this on one end (3×2 squares). How is this possible?”  
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When it comes to buying the right type of engine oil, you need to consider several important things. In this article, we have discussed 5 important things that can help you go for the right type of oil for your car engine. Choosing the wrong type of oil can have a negative impact on the performance of your car. Apart from this, it can also reduce the life of the engine. Therefore, it is extremely important to always use the right type of oil. Read on to find out more.

1. Car series and manufacturer

First of all, you should consider the make and model of your car. Today’s high-performance engines are designed for high efficiency. If you read your car manual, you will come to know about the right type of oil recommended by the manufacturer.

2. Driving environment

You should also consider your driving environment when making a choice. For instance, you may have a hot or cold climate. Similarly, road conditions may vary. You may have to drive on paved or unpaved roads on a regular basis.

Based on these factors, your car engine will have to tolerate different levels of strain. If you drive on unpaved roads, you will have to change engine oil more frequently. Some types of oils are designed to reduce the strain on your engine.

3. Types of oil

After you have considered the make and model of your car engine, you can go for either a mineral or synthetic oil. Each type has its own set of advantages and disadvantages. For example, synthetic oils cost more money but may last longer.

4. Viscosity grade

If you compare different products, you will find different codes and letters written on the labels. These numbers tell you about the viscosity grade and the resistance of the oil to flow. Now, this is an extremely important factor to consider after driving and climate conditions.

The letter W refers to winter. In other words, it tells you how the oil will perform in cold weather. The second number tells you about the flow of the oil at normal operating temperatures.

Normally, low viscosity oils are thinner and provide greater protection for your engine in cold weather. On the other hand, high viscosity oils offer greater protection in hot weather. Therefore, it is important to get familiar with the viscosity grade of the oil before making a purchase.

5. Oil standards

If you read the label closely, you will find letters and abbreviations, such as ILSAC, ACEA, and API. These acronyms tell you that the product can meet the requirements established by relevant authorities. You need to consider these specifications as they tell you a lot about the quality and performance of the oil.

If you take a closer look at the label, you will also find engine oil standards indicated by different acronyms, such as API, ACEA, ILSAC. This means that the product meets or exceeds the requirements set by these organizations. Specifications are important as they indicate the performance and quality of the oil.

Long story short, choosing the right type of engine oil is important if you want your car engine to work efficiently. Therefore, you may want to consider these important factors when looking for the right type of oil for your vehicle.

If you want to know how a garbage truck works, you are on the right page. In this article, we are going to take a look at the history of these vehicles. Without further ado, let’s get to the point.

Garwin Industries introduced the Load Packer for the first time in 1938. This vehicle became so popular that it brought a revolution in the industry of sanitation. As a matter of fact, it was the first compact garbage truck of its kind.

During those days, the carrying capacity of the vehicle was twice as much as before. The reason is that these trucks were able to compact the trash at high speed while driving across the city. In 15 years, there were a lot of garbage compactor trucks across many countries.

Due to the high demand for these vehicles, many manufacturers started the production of these vehicles. By the end of the 1960s, the world saw a lot of industrial standard compacting trucks. As the name suggests, these vehicles were designed to handle big projects as these trucks could compact trash a lot better than previous vehicles. In other words, they were able to handle 25% more load.

How does the Compactor Work?

Sanitation engineers load these trucks. The trash is put on a hopper, which is located at the back of the vehicle. The compacting mechanism works based on hydraulic cylinders. They transfer trash from the hopper to the body of the truck. This is the area where trash is compacted to save space. Once the trash is compacted, it is easy to handle for workers.

Since the trash compacting unit is located outside the vehicle body, trash does not fall out of the truck even if there is a lot of it. As soon as the truck is full, it is the responsibility of the driver to drive it to the dump.

The backside of the vehicle can be tilted up and the hydraulic cylinders can be used to move the panels. Afterward, the trash is dumped out.

Other Types of Garbage compacting Trucks

After the invention of garbage trucks, manufacturers introduced many variations of the vehicle. For example, they introduced a front loading truck. In these vehicles, the hopper was located in the front. The working principle of these vehicles is not different from conventional garbage compacting drugs.

Apart from this, you can find a lot of variations of recycling trucks. Some of these are side loaders while others have robotic arms that collect trash from streets. You can choose any type of garbage compacting truck based on your personal preferences. You may also want to discuss the matter with your employees to find out which vehicle suits them the best.

Long story short, this was a brief introduction to garbage compact trucks and the way they work. If you are looking for one or more of the units, we suggest that you consider the types described in this article. Apart from this, you may also want to do your research and ask around in order to make the best choice.