Alexa conjugates the French verb avoir (to have) in the imperfect tense.

Both SAVOIR and CONNAÎTRE mean TO KNOW in French, but when do we know how to use one rather than the other? In this video, Alexa solves this frequently asked French grammar question and outlines the differences between Savoir and...

Inherited and Acquired Traits of Animals explains the differences between inherited and acquired traits of animals.

The video “Subtract Angles” reviews types of angles and demonstrates how to find unknown angle measures by using a subtraction equation with a symbol for the unknown angle measure.

This video helps kids decode words and try both a short and long vowel sound. This is for after students have learned both short and long vowels. This teaches students how to decide whether a vowel is short or long in an unknown word....

This video teaches what a character is and how to identify outside and inside character traits. It teaches how the author shows who the character is based on what the character DOES and SAYS. Knowing the characters helps us understand...

Particle physicist Nima Arkani-Hamed (Institute of Advanced Study) describes why now is the perfect time to study fundamental physics.

Quantum physicist Artur Ekert (Oxford and NUS) describes how aspects of computational complexity are harnessed by cryptosystems like RSA (Rivest–Shamir–Adleman) which is a public-key cryptosystem that is widely used for secure data...

UCL development psychologist Uta Frith describes the so-called “Sally-Anne” test or “false belief” test that she and her colleagues used to determine that autistic children generally have great difficulty in ascribing beliefs and desires...

Cognitive scientist Uta Frith (UCL) describes the famous "mentalizing" experiments that exposed the psychological limits of autistic children.

As a former kindergarten teacher and school Director of Technology, Steve Dembo is a pioneer in the field of educational social networking. Currently serving as Discovery Education's Director of Social Media Strategy and Online...

A video entitled “Variance and Standard Deviation” which describes ways that variance and standard deviation are used as measures in the real world.

A video entitled “Elements of an Argument” which explains the key components of a strong argument.

In this episode of Alexa's 'Practise Your French' series, Alexa helps you practise the conditional IR verbs.

Civil rights activist Dorothy Bolden made it her mission to empower America’s working class. Her activism empowered domestic workers across the nation – and created noticeable change in the workplace for thousands of Black women.

This was written in response to the recent UN report on climate change. A Poem for the Environment by John D Ruddy The leaves for years were growing, The embers small were glowing. The inferno tall billowing, And the oil keeps flowing....

The video “Subtract by Making Tens” uses the making tens strategy modeled with a ten frame or number line to solve several subtraction problems.

A video entitled "Layers of History" which discusses how Earth's geographic features were formed, with a focus on the study of rock layers through absolute and relative dating.

A video entitled “Equations with a Factor of 10” which uses division to solve multiplication word problems that include a factor of 10.

Steinbeck doesn’t hold back from uncomfortable topics, and neither should we! Join us for an in-depth analysis of the theme of Prejudice in Of Mice and Men. We take a close look at the characters in this novella who are treated unfairly...

In Part 2, Kevin shares a personal story of running a 5K race and draws parallels to the end of a school year. He reflects on the initial excitement and determination that wanes over time, leading to a desire to take it easy and walk...

In this episode, we dive deeper into the concept of self-discipline, the secret ingredient to overcoming distractions and achieving success. From understanding the power of clear goals to mastering self-awareness, we outline proven...

Lee McIntyre is a Research Fellow at the Center for Philosophy and History of Science at Boston University and a recent Lecturer in Ethics at Harvard Extension School. He holds a B.A. from Wesleyan University and a Ph.D. in...

In which Hank wonders at some stories of his own humiliation, and why he feels it sometimes, but not other times. The trick is finding people and places that support you in being you so that you are comfortable feeling right even after...