How to write a materials and methods section

Materials and Methods When writing a lab report, it is often a good idea to begin by writing the Materials and Methods section. This section is usually very straightforward, and writing it first helps many people establish the proper thought process and understanding of the work that will allow the rest of the report to flow more smoothly. Following this section, it is generally recommended to write the Results section, followed by the Discussionand finally the Introduction. Although this strategy is only a recommendation, and although it may seem illogical at first, many have found this approach very effective for writing scientific papers.

How to write a materials and methods section

How to write a lab report Methods section The format for the entire lab report is summarized in the handout of laboratory requirements. This handout will use a lab exercise on seed germination as an example of how to write a methods section. In each section of this worksheet there are questions that should be answered in reference to your experiment.

Materials and Methods

You can then use the answers to these questions to your methods section for the assigned lab report. General Rules for a methods section: The methods section should be in past tense. Do not list supplies used for the experiment as in a recipe. Do not use narrative style writing, for example: On Tuesday we put five seeds into six Petri dishes.

Two students took half of the seeds home and watered them each day. A methods section should include a description of the experimental treatments and sample sizes for each trial. Experimental factors that were held constant and dependent variables should also be described.

To effectively write a methods section you will need to know some aspects about the hypothesis for the experiment using the Erlenmeyer flasks.

The hypothesis and prediction will indicate the treatments that are described in the methods.

how to write a materials and methods section

The experimental hypothesis implies methodology for an experiment. Included in the methods is a description of how the independent variable of exposure to air was manipulated. However, the experimental methodology should also include controlling factors. For the spontaneous generation hypothesis all trials should include sterilized conditions.

Having sterilized conditions allows for conclusions about life from inorganic matter, instead of life introduced into the flasks from the environment. If the trial flasks were not sterilized, the experiment would not be testing life from inorganic matter, but would test life arising from pre-existing cells.

how to write a materials and methods section

Information needed before writing a methods section: The supplies used during the experiment: Although you will use aspects of the hypothesis in the methods section, the statement of hypothesis is not included in the methods section it is included in the introduction. There is an example of the format for a methods section on the following page.

Six of the petri dishes were watered with different concentrations of salinity. Two of the petri dishes were watered with distilled water. Each petri dish contained five seeds and was watered with 1 ml of solution twice a day.

The wheat seeds were allowed seven days for germination and seedling growth. Following the seven-day treatments we calculated the percent germination and measured the growth of any seedlings.

The seedling growth was measured from the base of the stem to the top of the stem, excluding leaf length. A comparison of means test was used to identify differences between treatments.An article primarily includes the following sections: introduction, materials and methods, results, discussion, and conclusion.

Before writing the introduction, the main steps, the heading and the. methods section structure should: describe the materials used in the study, explain how the materials were prepared for the study, describe the research protocol, explain how measure- ments were made and what calculations were performed, and state which statistical tests were.

To effectively write a methods section you will need to know some aspects about the hypothesis for the experiment using the Erlenmeyer flasks. The hypothesis and prediction will indicate the treatments that are described in the methods.

Feb 24,  · The heading of the section “Materials and Methods” can be changed to “Patients and the Method” in accordance with writing rules of the journal in question. Indication of starting, and termination dates of a clinical study will facilitate scientific interpretation of the article.

Therefore, the methods section structure should: describe the materials used in the study, explain how the materials were prepared for the study, describe the research protocol, explain how measurements were made and what calculations were performed, and .

So what exactly do you need to include when writing your method section? You should provide detailed information on the research design, participants, equipment, materials, variables, and actions taken by the participants.

The method section should provide enough information to allow other researchers to replicate your experiment or study.

Materials & Methods