https://www.khanacademy.org/computing/intro-to-python-fundamentals/x5279a44ae0ab15d6:automating-tasks-with-lists/x5279a44ae0ab15d6:list-iteration/v/list-iteration 2025-04-22T06:06:44.005422094Z List iteration Iterate over the elements of a list using while loops, for loops with range(), and for-each loops. When should you iterate by index and when should you iterate by element? View the program used in this video at: https://www.khanacademy.org/python-program/list-iteration/4817445047091200 Kim Merrill video https://cdn.kastatic.org/ka_thumbnails_cache/1c417cee-2d35-4652-94ff-e430e51e2c0f_1280_720_base.png List iteration Iterate over the elements of a list using while loops, for loops with range(), and for-each loops. When should you iterate by index and when should you iterate by element? View the program used in this video at: https://www.khanacademy.org/python-program/list-iteration/4817445047091200 https://cdn.kastatic.org/ka-youtube-converted/jNjRP0tVY5s.mp4/jNjRP0tVY5s.mp4 294 List iteration https://www.khanacademy.org/computing/intro-to-python-fundamentals/x5279a44ae0ab15d6:automating-tasks-with-lists/x5279a44ae0ab15d6:list-iteration/a/list-iteration-patterns 2025-05-15T19:35:11.280277188Z List iteration patterns Explore common uses cases for iterating over a list. article https://www.khanacademy.org/computing/intro-to-python-fundamentals/x5279a44ae0ab15d6:automating-tasks-with-lists/x5279a44ae0ab15d6:list-iteration/e/iterate-over-sequences 2025-09-12T02:00:44.915137743Z Iterate over sequences Trace iteration over lists and strings using for loops. Nathaniel Shak exercise https://www.khanacademy.org/computing/intro-to-python-fundamentals/x5279a44ae0ab15d6:automating-tasks-with-lists/x5279a44ae0ab15d6:list-iteration/a/lists-code-review 2025-04-28T23:55:38.711974473Z Lists code review Evaluate the efficiency and readability of programs with lists. article https://www.khanacademy.org/computing/intro-to-python-fundamentals/x5279a44ae0ab15d6:automating-tasks-with-lists/x5279a44ae0ab15d6:list-iteration/v/program-design-screen-time 2025-04-22T06:06:44.005422094Z Program design: screen time Code along with a software engineer in this worked example using lists. Apply list iteration to analyze daily screen time usage across different apps. Define functions with list parameters to count the total number of active minutes and the total number of distinct phone sessions. View the program used in this video at: https://www.khanacademy.org/python-program/screen-time-lists-program-design/5111855196520448 Kim Merrill video https://cdn.kastatic.org/ka_thumbnails_cache/294ac34a-66dd-4822-b24f-e55a941b2bd9_1280_720_base.png Program design: screen time Code along with a software engineer in this worked example using lists. Apply list iteration to analyze daily screen time usage across different apps. Define functions with list parameters to count the total number of active minutes and the total number of distinct phone sessions. View the program used in this video at: https://www.khanacademy.org/python-program/screen-time-lists-program-design/5111855196520448 https://cdn.kastatic.org/ka-youtube-converted/_MsHKS96o3k.mp4/_MsHKS96o3k.mp4 342 List iteration https://www.khanacademy.org/computing/intro-to-python-fundamentals/x5279a44ae0ab15d6:automating-tasks-with-lists/x5279a44ae0ab15d6:list-iteration/pc/challenge-heart-rates 2025-07-29T19:36:48.245773954Z Challenge: Heart rates Practice list iteration to detect trends in daily heart rate readings. challenge