Decimal

1. Which analytical balance is the more accurate? Why? 2. Which piece of glassware is best at measuring the density of water? 3. What two aspects of the data set you cited in Question 1 define it as “best”? 4. What does “standard deviation” measure? 5. (a) Calculate the standard deviation of the data set you labeled as having the least random error in the first experiment with pure water. (b) Calculate the standard deviation of the data set you labeled as having the MOST random error in the…

The number following the decimal point indicates whether the alloy is a casting (.0) or ingot (.1 or .2). A capital letter prefix indicates a modification to a specific alloy. Example: Alloy - A356.1 the capital A (Axxx.x) indicates a modification of alloy 356.1 the number 3 (A3xx…

may lead us to think in British English terms. However, since they mention they are dollars and they address the petition to the (American, I assume) Congress, it has been translated as “7,7 miles de millones de dólares”. Also, the point used as decimal mark in the original text has been replaced by a comma in the Spanish translation, according to the…

Listeria monocytogenes is a Gram-positive rod-shaped bacterium. It is the agent of listeriosis, a serious infection caused by eating food contaminated with the bacteria (Todar, 2008). The disease primarily affects older adults, pregnant women, new born, and adults with weakened immune systems. Babies can be born with listeriosis if their mothers eat contaminated food during pregnancy. However, healthy people may consume contaminated foods without becoming ill. Listeria monocytogenes is commonly…

Albert Einstein defined insanity as “doing the same thing over and over again, expecting a different result.” We have all been guilty at some point, trapped in the web of the norm. Insanity occurs in the mind and change brings challenge, but what happens when you go against what others think or do? When you challenge the way it has always been done? The war of the mind then begins to consume your thoughts with negativity. What will other’s think of me? What if I fail? What if I am wrong? What…

A gateway drug is a drug that could lead a person to using dangerous and more addicting drugs. The three types of gateway drugs are tobacco, alcohol and marijuana. They all are dangerous and highly addictive. Tobacco is depressant which contions nicotine, a colorless, odorless drug that is very addictive. Alcohol is also a depressant and it slows down the nervous system. Marijuana is a mind changing drug. All three are dangerous, therefore, everyone should stay away from using gateway drugs.…

length and rigor of problems, but appropriate for the group of students that each is given too. Students in groups C and D are still struggling with things like single digit multiplication, adding and subtracting with regrouping, and operations with decimals. Many students in groups C and D have IEPs for learning disabilities and are below grade level in math. These students require modified assignments and step-by-step instructions with chunking and scaffolding. The students in groups A and B…

The history of mathematics in the near consisted of three distinct divisions of time. The mid-third millennium is when there became evidence for knowledge of symmetry and geometry. Then continuing on into the later third millennium the establishment of accounting for time and labor became prevalent as well as the use of the sexagesimal place value system. The first systematic accounting techniques were developed in the southern Iraq city of Uruk as a result of a growth in the size of the city by…

1. Heat water in a pan or beaker until it is boiling vigorously. 2. While you are waiting for the water to boil, measure the mass of the metal with your scale. Remember to report your answer to one more decimal place than what is marked off by the scale. 3. Once the water on the stove is boiling, drop the metal into the pot and let it sit there for about 5 minutes. This will heat the metal to the temperature of the boiling water (100.0°C). 4. While the metal is heating, nest one Styrofoam…

Marzano’s Classroom Strategies are nine strategies that Robert Marzano created and recommends the use of these strategies for high student achievement. Of those nine strategies I chose two of these strategies that I enjoy and have seen be successful in the classroom, which are identifying similarities and differences and homework and practice. I chose to discuss this topic because of the success I have seen as a result of these strategies in the classroom. Identifying similarities and…