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Scientific Method
The scientific method is the basis of scientific investigation. A scientist will pose a question and formulate a hypothesis as a potential explanation or answer to the question. The hypothesis will be tested through a series of experiments. The results of the experiments will either prove or disprove the hypothesis. This category should contain questions and answers regarding the scientific method.
4,392 Questions
Example problems that can be solved by using scientific method?
Sample Running Record
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Scoring and Analyzing a Running Record
Scoring: The information gathered while doing a running record is used to determine error, accuracy, and self-correction rates. Directions for calculating these rates are given below. The calculated rates, along with qualitative information and the student's comprehension of the text, are used to determine the student's reading level.
Qualitative Analysis: The qualitative analysis is based on observations that you make during the running record. It involves observing how the student uses the meaning (M), structural (S), and visual (V) cues to help her/him read. It also involves paying attention to fluency, intonation, and phrasing. Think back to the prompts you offered and how the student responded. These observations help you form a picture of the student's reading development.
Error
Accuracy
Self-Correction
The formulas below were used with the sample running record above.
Error Rate
Error rate is expressed as a ratio and is calculated by using the following formula:
Total words / Total errors = Error rate
Example:
99 / 8 = 12.38, or 12 rounded to nearest whole number
The ratio is expressed as 1:12.
This means that for each error made, the student read approximately 12 words correctly.
Accuracy Rate
Accuracy rate is expressed as a percentage. You can calculate the accuracy rate using the following formula:
(Total words read - Total errors) / Total words read x 100 = Accuracy rate
Example:
(99 - 8) / 99 x 100 = Accuracy rate
91/99 x 100 = Accuracy rate
.919 x 100 = 91.9%, or 92% rounded to the nearest whole number
You can use accuracy rate to determine whether the text read is easy enough for independent reading, appropriate to use without frustration during reading instruction purposes instruction, or too difficult for the reader. The breakdown of these three categories is as follows:
Easy enough for independent reading = 95 - 100%
Instructional level for use in guided reading session = 90 - 94%
Too difficult and will frustrate the reader = 89% and below
Self-Correction Rate
Self-correction rate is expressed as a ratio and is calculated by using the following formula:
(Number of errors + Number of self corrections) / Number of self corrections = Self-correction rate
Example:
(8 + 3) / 3 = Self-correction rate
11 / 3 = 3.666, or 4 rounded to the nearest whole number
The self-correction rate is expressed as 1:4. This means that the student corrects approximately 1 out of every 4 errors.
If a student is self-correcting at a rate of 1:4 or less, this indicates that she/he is self-monitoring her/his reading.
What changes in an experiment?
It depends what you mean by that. But in an experiment that is made up of several tests, one factor at a time must be changed in order to rule out each possible factor until only one remains.
Also test conditions may change if performed on a different day. Hope that helps you!!
What types of information can be collected through qualitative observation?
Qualitative observations are the reactions that you see occuring. They mey be melting,bubbles, fizzing,smoke, the colour of the solution,and anything change you see that occurs. Don't talk about anyhting you can not see.
What is a hypothesis for length of string telephone responding variable clairity of sound?
A hypothesis is a prediction or proposed explanation for something. A hypothesis for the length of string telephone with a clarity of sound responding variable can be about the string length affecting the quality of the sound.
it means like when your looking at the project your looking at whats happening every day... =]]
it means by watching something and seeing whats going on around it so that if someone ask you, you can be able tell them what happen...
It means to take notice of things around you. To learn by watching. For example, I observe that you spelled the word 'does' wrong in your question.
What would be a sound hypothesis?
Many people recommend using a simple format.
- If... then...because... &
- include manipulating variable and a controlled variable of some sort Example: IF I put two clover plants into 3" pots and water one with soda and then other with water, THEN the one with soda will not grow taller BECAUSE of the sugar content in the soda.
What is the velocity of hurricanes categories 1-6?
Hurricane categories are determined by a storm's maximum 1-minute sustained wind speed.
Category 1: 75-95 mph
Category 2: 96-110 mph
Category 3: 111-129 mph
Category 4: 130-156 mph
Category 5: 157 mph or greater.
There is no Category 6.
What is the relationship between resistivity and circumference?
The relationship between resistivity and circumference is inverse.
The resistance of a substance decreases as the surface area of that substance increases. The greater circumference presents a greater conduction surface.
Answer
The original answer describes resistance, NOT resistivity. Additionally, it is incorrect because resistance is inversely-proportional to cross-sectional area NOT circumference!
There is NO relationship between resistivity and the circumference of a material. Resisitivity is a constant at any given temperature and is completely unaffected by the dimensions of a material.
Which is nota typical step when performing scientific research?
Going on a long holiday is not a typical step.
Name and describe three methods of scientific statistical sampling?
Name and describe three methods of scientific statistical sampling
Read more: Answers.com
What is the explanation for the steps involves in project identification?
explain the poocess of project identification
When determining your options you will gather information and make?
Determining your options means, by inference, that you will make decisions based on the information you gather. Note that even if you decide to do nothing, it is still a decision.
A valid hypothesis is one that is testable and rejectable, can be proven true as well as verified without external evidence. It also needs to be accepted by public opinion.
What is slope over distortion?
i believe you mean that the question is to do with the gradient of a line
the gradient of a line is the change in height divided by the change in distance
which is the same as slope divided by distortion
if a man goes up a hill and his height cahnges by 1 metres vertically and he walks horizontally 10 metres then the slope is 1 metre and the distortion is 10 metres.
Gradiend is 1 -10th or 10%.....
