Vocab Builder by Using Prefixes, Roots and Suffixes. Part 23: contra.

NGSS Science Videos

This video is designed to help build general and scientific vocabulary for State and standardized exams by using word-part (prefix, root, suffix; many in Latin) explanation and examples.  This video is part of a series. In this video, we introduce this word parts: contra.  You can download the free student engagement worksheet / quiz that we made for this video at the following link:  https://www.teacherspayteachers.com/Product/Vocabulary-Builder-Part-23-Video-sheet-Google-Forms-Canvas-more-V1-11949925  If possible, we encourage you to view this video the evening before the topic is presented in class. This will help you be more familiar with the key vocabulary and may improve your long-term retention of the concepts.   For educators:  - For background on why students may benefit from completing the video worksheets at home the evening before you teach the class, please see this 3-minute video: https://youtu.be/_zZuryl1k-c - Our worksheets are available in electronic format for free (e.g., Blackboard, Canvas, Easel, Google Forms, MS Forms, Moodle). For more info, please see https://youtu.be/ZdSb95QyByI - We have manually edited the closed captions, so those in English are correct. Although we cannot guarantee all automated translations will be accurate, we have been very impressed by those generated by YouTube® in parts of languages that we can understand.  If a speaker of your chosen language can ensure the translations are acceptable, then you may wish to turn these on for students whose first language is not English.   Other free resources we've made: - For links to many free educational resources, please visit our website (no 3rd party advertising, no subscriptions, no paywalls): https://TestPrepLLC.org/  - For our free apps for Apple's Mac and iPad (collects no data, no advertising, no subscriptions, no paywalls, no in-app purchases), please visit our page on the Apple App Store. These apps include Common Core and State based practice tests in math, and State science exams based on NGSS and State curriculums (all with detailed, colorful explanations): https://apps.apple.com/us/developer/test-prep-llc/id1727786893  Best wishes, The staff at Test Prep LLC https://TestPrepLLC.org  #NGSS

Transcript

00:00This educational video is intended to help children build their vocabulary for the purpose of their general knowledge,

00:06as well as to improve their scores on state and other standardized exams.

00:11Please pause the video to read the purpose, scope, and warnings related to this video.

00:16This video has a free student engagement worksheet that can also be used as a quiz.

00:21It's available in many formats.

00:23Please see the link in the description to download this.

00:26In this video, we'll learn the definition of these words.

00:29We'll do that by focusing on the meaning of the word parts, which make up each word.

00:33The word part contra means against.

00:36It's part of many common words.

00:38The word contraband is made of two word parts.

00:41The first is contra, which means against.

00:44The second word part is banned, which means the law.

00:47If something is contraband, then it's against the law or rules to have it.

00:52Here are some example sentences.

00:54In this classroom, popcorn and soft drinks are contraband.

00:57But in a movie theater, popcorn and soft drinks are not contraband.

01:02The word contradict is made of two word parts.

01:05The first is contra, which means against.

01:08The second word part is dict, which means to speak.

01:12You may recognize that word part from words like dictionary, which is a collection of spoken words.

01:17The word contradict means that someone is speaking against what someone else is saying.

01:22This is common in debates.

01:24But facts can also contradict people.

01:26Here's an example.

01:27When the teacher asks the students whether the earth is flat, Billy says the earth is flat.

01:33Then Susie says photos of the earth taken by astronauts on the moon show that the earth is shaped like a ball.

01:40Susie points out that photos taken by astronauts on the moon, like this one, contradict the idea that the earth is flat.

01:47The word contraindicate is made of two word parts.

01:51The first is contra, which means against.

01:54The second word part is indicate, which means to show or use.

01:58In this case, indicate means to use.

02:01The word contraindicate means something should not be used.

02:05The most common use of the word contraindicate is in healthcare.

02:09When a doctor is thinking about prescribing a medication for a patient, the doctor always considers the contraindications to the medication,

02:17which means she or he thinks about when the medication should not be used.

02:21Here's an example sentence.

02:23Billy's allergy to penicillin is a contraindication for him to take antibiotics in the penicillin class.

02:29The word contrary is made of the word part contra, which means against.

02:33We often use this word in a phrase such as contrary to popular opinion.

02:38That phrase means unlike what many people may believe.

02:42Here's an example.

02:43Contrary to popular opinion among five-year-old children, the moon is not made of cheese.

02:49These are moon rocks brought back by astronauts almost 50 years ago and show they are very similar to those on Earth.

02:56They are not made of cheese.

02:58The word contrarian is made of two word parts.

03:01The first is contra, which means against.

03:03The second word part is a word-forming suffix.

03:06A contrarian is someone who has beliefs that are against what most people believe.

03:11The most common example of this is related to investing money.

03:14For example, a contrarian investor often invests money into a company that most investors would not invest money in.

03:21The word contrast is made of two word parts.

03:24The first is contra, which means against.

03:27The second word part is a shortened version of sta, which means to stand.

03:32The word contrast means to make something stand out against something else.

03:36When we look at the edge between black and white colors, the contrast is sharp.

03:41For example, it's very easy to see exactly where the edge of this road is because it stands out compared to the white snow.

03:49There's a sharp contrast between the road and the snow.

03:52Whereas, if colors are similar, then it's much harder to see the edge.

03:56For example, it's hard to see the edges between the envelope and the blades of grass in front of it.

04:02When we adjust photos in editing software, we can decrease or increase the contrast to get an effect we want.

04:10It's very common in exams to have a test question begin with the phrase, compare and contrast.

04:16In this setting, the word contrast means to describe the differences between two or more things.

04:22Whereas, the word compare means to describe the similarities between two or more things.

04:27For example, if a question was, compare and contrast this insect and the leaves around it, we might write something like this.

04:34Both the insect and the leaves are similar in shape and color.

04:37But they're different because one is an animal and the other is a plant.

04:41The word contrabean is made of two word parts.

04:44The first is contra, which means against.

04:47The second word part is ven, which means to come.

04:50In this particular word, it's easier to think of the word part ven as meaning to go.

04:55This word means to go against.

04:58Specifically, it refers to going against rules or laws.

05:02Here are some examples.

05:03Billy is talking on his phone during the movie, which contravenes the theater's rules.

05:08Roger is making copies of this book and selling them.

05:11His actions contravene copyright law.

05:14Thanks for your attention.

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