https://www.khanacademy.org/humanities/grammar/punctuation-the-comma-and-the-apostrophe/introduction-to-commas/v/meet-the-comma-the-comma-punctuation-khan-academy 2023-09-19T21:32:47.781412264Z Meet the comma David and Paige introduce you to the comma! The comma is a punctuation mark that separates sentence elements, such as lists, dates, and clauses. It's the superhero of punctuation, but it has one weakness: commas can't go at the end of sentences. video https://cdn.kastatic.org/googleusercontent/L8TeQUsv_JHxtis5BrT1WLO7ILJogVquSg2349qh6tr_4znmeF65xD2AQtYQn3JK0SFyq2lzJ0bUtKu8T1UpAyU Meet the comma David and Paige introduce you to the comma! The comma is a punctuation mark that separates sentence elements, such as lists, dates, and clauses. It's the superhero of punctuation, but it has one weakness: commas can't go at the end of sentences. https://cdn.kastatic.org/ka-youtube-converted/Wk0k2FLjM1c.mp4/Wk0k2FLjM1c.mp4 239 Introduction to commas https://www.khanacademy.org/humanities/grammar/punctuation-the-comma-and-the-apostrophe/commas-in-space-and-time/v/commas-in-space-and-time-the-comma-punctuation-khan-academy 2026-07-08T23:40:45.874044968Z Commas in addresses and dates Learn how to use commas when writing addresses (in space) and dates (in time). video https://cdn.kastatic.org/googleusercontent/ZQi1GogkayhIpb6nrDP3aEC9u756Ot6B8BACS4HEyFTT2XJrgyIuYIHpkbGTlM8FDAvc9CEOl-Ng69N5JjEYz7qQ Commas in addresses and dates Learn how to use commas when writing addresses (in space) and dates (in time). https://cdn.kastatic.org/ka-youtube-converted/7dYePWVTTTI.mp4/7dYePWVTTTI.mp4 199 Introduction to commas https://www.khanacademy.org/ela/9th-and-10th-grade-grammar/xf006c25352e869bb:punctuation-and-capitalization-9/xf006c25352e869bb:introduction-to-commas-9/a/using-commas-in-tag-questions-direct-address-and-yes-no-statements 2026-07-14T18:30:40.92487512Z Using commas in tag questions, direct address, and yes/no statements Review the rules of using commas to set off dialogue, in tag questions, for direct address, and for yes-and-no responses. article https://www.khanacademy.org/humanities/grammar/punctuation-the-comma-and-the-apostrophe/more-ways-to-use-commas/v/more-uses-for-commas-the-comma-punctuation-khan-academy 2026-07-08T23:40:45.874044968Z Commas in tag questions, direct address, and yes/no statements David and Paige, KA's resident grammarians, discuss tag questions, yes and no statements, and direct address -- all situations where the comma is super useful.  video https://cdn.kastatic.org/googleusercontent/Z8Bzm-oiqCULTzHM8QvL9i8-MIWncjB5Bl5hQyZSKD8V5nPHb6lsoctIw7beg2A0gsYyfD34KIzOpcgjPaHT_cQ Commas in tag questions, direct address, and yes/no statements David and Paige, KA's resident grammarians, discuss tag questions, yes and no statements, and direct address -- all situations where the comma is super useful.  https://cdn.kastatic.org/ka-youtube-converted/09-t-giMcNk.mp4/09-t-giMcNk.mp4 204 Introduction to commas https://www.khanacademy.org/ela/9th-and-10th-grade-grammar/xf006c25352e869bb:punctuation-and-capitalization-9/xf006c25352e869bb:introduction-to-commas-9/e/commas-in-addresses-dates-tag-questions-and-more-grammar-9 2026-07-13T19:41:05.916442654Z Commas in addresses, dates, tag questions, direct address, and yes/no statements Practice using commas. David Rheinstrom exercise