SciShow
A Deadly Mistake That Led to Safer Medicine | Elixir Sulfanilamide
In the 1930s, a mistake that cost over a hundred lives helped usher in a new era of safer medicine.
Visual Learning Systems
The Nature of Light: Electromagnetic Energy
Students will learn about the different frequencies along the electromagnetic spectrum. Vivid animation is used to explore the visible spectrum of light and the colors it allows us to see everyday. The video also investigates various...
Curated Video
Spanish Story | Past Tense | El celular
This Spanish story is the past and uses both the preterite tense and the imperfect tense in a natural context. Learn Spanish past tense verbs and vocabulary as you listen to the story about a lost cell phone. You’ll learn common Spanish...
Curated Video
Spanish Story | Past Tense | ¿Qué te pasó?
This Spanish story is narrated in the past tense. Learn Spanish preterite and imperfect verbs and vocabulary as you listen to the story about a cooking and accidents in the kitchen. You’ll learn common Spanish past tense verbs and other...
Curated Video
Spanish Story | Past Tense | El niño triste
Learn Spanish with this funny story in the past tense. This Spanish story is ideal for beginning or intermediate learners. Learn common Spanish past tense verbs and basic vocabulary for emotions. Native speakers from Mexico tell the...
Curated Video
Using Specific Nouns to Enhance Your Writing
This video is a tutorial on using specific nouns in writing to express ideas precisely. The speaker explains the concept of nouns and how important it is to use specific nouns to make writing clear and effective. The video provides...
Curated Video
Revising Your Persuasive Speech: Connecting Evidence to Your Thesis Statement
In this video, the teacher explains how to ensure that the evidence in a persuasive speech connects to the thesis statement. The teacher outlines three steps: rereading with a purpose, checking if the speech is going off track, and...
TED-Ed
TED-ED: Why do we harvest horseshoe crab blood? - Elizabeth Cox
During the warmer months, especially at night during the full moon, horseshoe crabs emerge from the sea to spawn. Waiting for them are teams of lab workers, who capture the horseshoe crabs by the hundreds of thousands, take them to labs,...
Learn German with Herr Antrim
“haben” and “sein” in the Past Tense (Präteritum Guide) - A2/B1 German Grammar
Welcome to the ultimate guide on mastering 'haben' and 'sein' in the Präteritum tense! 🇩🇪 Why watch this video? In this comprehensive lesson, I, Herr Antrim, will guide you through the nuances of using two of the most essential verbs in...
Oxford Online English
English Verb Tenses Guide - Learn About Simple, Perfect, and Continuous Tenses
Are you confused about your simple, perfect and continuous tenses? Do you know how many verb tenses there are in English? In this lesson, you can get a big picture understanding of English verb tenses. You’ll learn what connects English...
Learn German with Herr Antrim
Past Tense of German Modal Verbs Made Easy
In German grammar lesson we dive into the complexities of using modal verbs like "mögen," "müssen," "dürfen," and more in the past tense. This comprehensive guide simplifies the use of modal verbs in the Perfekt and Präteritum tenses,...
Advocate of Wordz
Blank & Free Verse - Poetry Defined
Blank and Free Verse are sometimes confused as being interchangeable, but they aren't! Also, we sometimes believe we're writing in Free Verse, but we're actually denying ourselves credit we deserve.
Curated Video
Forming Past Tense Verbs: Adding Ed
This video provides a clear and concise explanation of how to form the past tense of verbs. It covers common mistakes and provides four rules to follow when adding "ed" to a verb to indicate past tense. The examples given help to...
Curated Video
Consistency in Verb Tense: A Writing Lesson
In this video, the teacher explains the importance of using consistent verb tense in writing. They provide examples and a step-by-step process for identifying and correcting verb tense errors. The video also includes practice exercises...
Next Animation Studio
Beijing’s air pollution goes off the scale
Region’s skies turn dark orange as sandstorm and pollution send readings off the scale.
Learn French With Alexa
Prendre (to take) — Future Tense
Alexa teaches you how to conjugate Prendre (to take) in the future tense.
Next Animation Studio
Pakistan's national ID cards explained
The Computerized National Identity Card (CNIC) was introduced to Pakistan in 2000. By 2012 more than 89.5 million CNICs had been issued, or approximately 91 percent of the adult population. All adult citizens are required to register for...
Oxford Online English
English Verb Tenses Guide - Learn About Simple, Perfect, and Continuous Tenses
Are you confused about your simple, perfect and continuous tenses? Do you know how many verb tenses there are in English? In this lesson, you can get a big picture understanding of English verb tenses. You’ll learn what connects English...
Learn German with Herr Antrim
Plusquamperfekt (Past Perfekt Tense) | Passiv Deutsch Grammatik B1 | B1German Grammar Lesson
Plusquamperfekt (Past Perfekt Tense) - B1 German Grammar Lesson for Beginners Ever wondered how to perfectly narrate events that happened before other past events? This German grammar lesson is your gateway to understanding the...
Oxford Online English
Present Perfect Verb Tense - English Grammar Lesson
In this lesson, you can learn about the present perfect verb tense in English. Does your language have anything like the present perfect? Many languages don’t have a similar verb form. This can make it more difficult to use the present...
Curated Video
Past Tense Ending with ed | Fun ESL Game | /d/ /t/ /id/ Sounds
You can learn about verbs in the Past Tense Ending with ed in this fun ESL game. It's an exciting guessing game. You must guess the sound of ed endings for 10 different verbs. First, you will see a some video clips and you will hear the...
Learn German with Herr Antrim
Konjunktiv 2: Using "haben" and "sein" to Form the Past Tense | German Perfekt Tense Lesson
Konjunktiv 2: Using "haben" and "sein" to Form the Past Tense | German Perfekt Tense Lesson In this B1 German Grammar Lesson, you’ll learn how to use "haben" and "sein" to form the past tense in Konjunktiv 2. Learn how to say "would...
Global Health with Greg Martin
Global Health Journalism - the Pulitzer Center
This week we return to bring you en episode on the importance of journalism in Global Health, featuring discussion with Emily Baumgaertner of the Pulitzer Center, and a talk with esteemed reporter and health-related journalist, Joanne...
Curated Video
Spanish Story | Past Tense | La sobrina
This funny Spanish story is narrated in the past tense. Juan and Pamela greet each other and then you will learn Spanish verbs in the preterite and imperfect tenses and vocabulary as you listen to Juan tell the story of his visit to see...