Ordinal numbers help us put things in order or in a sequence. Sigrid teaches us the suffixes we use to turn cardinal numbers into ordinal ones.

Sigrid explains what cardinal numbers are and gives us some writing and pronunciation tips.

Sigrid finishes the alphabet with "Z," covering words like "zone" and "zebra," but also the useful suffix "-ize."

"Y" is a tricky letter because it's both a consonant and a vowel. As a vowel, it has different sounds. Don't worry. But hey, maybe keep your eye on the "Y." Don't let it fly away.

"X" is a special letter in that we often use it by itself. It's useful in a lot of situations. In the middle of a word, however, it can be pronounced in a few different ways.

"W" is a consonant, but it is very vowel-like and is considered a "semi-vowel." "W" is featured in plenty of important words, and it combines with other letters to make some new sounds.

"V" is a voiced consonant. "Voice" starts with "V." We make the sound with the upper teeth lightly touching the lower lip, like "F" but with the voice, too. It vibrates. The verb "to vibrate" also starts with "V." That should make it easy to remember.

"U" is an interesting vowel, and has a few different sounds. It can even sound like the consonant "Y," and combines with other vowels to make new sounds.

Sigrid gives a quick explanation of what Yabla is and how the Yabla player works.

The letter "O" is a tricky vowel, because there are several ways to pronounce it, both when it's single and when it's double!

Anna explains when we use the present continuous, or present progressive tense and gives us some examples.

Watch this video featuring Alexander Pointer to learn the many ways of greeting people in English.

"H" is a tricky letter for lots of folks. Sigrid shows us how to make the sound, and gives us plenty of examples.

The letter "G" often combines with "N" to make a special sound. Sigrid explains how this works.

The story told in this animation reminds us that we can never predict the exact outcome of things that happen in our lives. Please visit sustainablehuman.org for credits and more information.