https://www.khanacademy.org/math/cc-fourth-grade-math/imp-measurement-and-data-2/imp-time-2/v/unit-sense-example-for-exercise 2020-09-16T18:09:49Z Finding reasonable unit of measurement example Sal chooses reasonable units of time activities like baking cookies. Sal Khan video https://cdn.kastatic.org/googleusercontent/ksvfEhXYW6sk81NYJCZi8Qe_WTB_o6QaUPHvQNcnHatRX6DgZit3jH4wXIssFX8o2nCglDP7BwHs2qzcm12hCUD1 Finding reasonable unit of measurement example Sal chooses reasonable units of time activities like baking cookies. https://cdn.kastatic.org/ka-youtube-converted/OuaBg3Hjqoc.mp4/OuaBg3Hjqoc.mp4 227 Time https://www.khanacademy.org/math/cc-fourth-grade-math/imp-measurement-and-data-2/imp-time-2/e/unit-sense 2026-04-30T20:20:55.724408584Z Estimating time (seconds, minutes, and hours) Practice estimating the length of an event using seconds, minutes, and hours. Lindsay exercise https://www.khanacademy.org/math/cc-third-grade-math/time/elapsed-time/v/times-differences-math-3rd-grade-khan-academy 2021-05-07T00:21:38Z Time differences example Learn to find the difference between the times shown on two different analog clocks.  Lindsay Spears video https://cdn.kastatic.org/googleusercontent/lyjefdN4HXQcgT0wNU0bDZgLqdcTnDdFD8js913WAqigXzZ6O_WitdKg2apGMU1poyl1F8OL4QyiFtie0NIcPw80qw Time differences example Learn to find the difference between the times shown on two different analog clocks.  https://cdn.kastatic.org/ka-youtube-converted/PCPmpPV9KR0.mp4/PCPmpPV9KR0.mp4 260 Time https://www.khanacademy.org/math/cc-fourth-grade-math/imp-measurement-and-data-2/imp-time-2/e/time-differences--over-the-hour- 2026-04-30T18:30:41.846286703Z Time differences Practice finding the difference between times given on two analog clocks. Time differences cross over the hour. Lindsay exercise https://www.khanacademy.org/math/cc-third-grade-math/time/elapsed-time/v/time-differences-word-problem-math-3rd-grade-khan-academy 2021-07-15T19:05:23Z Time word problem: puzzle Lindsay finds out how long it took to solve a puzzle when given the start and finish time. Lindsay Spears video https://cdn.kastatic.org/googleusercontent/2bIWZapgji7iLz4cD8I2gNzlK36_CFZu6U12d1zwTCr4LkFZM0mV9Yj_RAE6G7QHdvo-dQPQ4eyNMcoYaIQRHmh4cw Time word problem: puzzle Lindsay finds out how long it took to solve a puzzle when given the start and finish time. https://cdn.kastatic.org/ka-youtube-converted/gZzsYhyjIXA.mp4/gZzsYhyjIXA.mp4 90 Time https://www.khanacademy.org/math/cc-third-grade-math/time/elapsed-time/v/time-to-leave-for-home 2021-07-15T19:05:23Z Time word problem: travel time Sal solves what time do you leave if you are traveling 39 minutes and need to be home at 6:15. Sal Khan video https://cdn.kastatic.org/googleusercontent/J31qJtEBhQy6uzHuJ9FBN5TYt9gTXsWw31UR6YkTqrH0-mgQ49UqRMLJzecBJvhLm_RDk3WAfiQcM0l7pRg9jTW2 Time word problem: travel time Sal solves what time do you leave if you are traveling 39 minutes and need to be home at 6:15. https://cdn.kastatic.org/ka-youtube-converted/kul2ZmVIQZk.mp4/kul2ZmVIQZk.mp4 249 Time https://www.khanacademy.org/math/cc-fourth-grade-math/imp-measurement-and-data-2/imp-time-2/e/telling-time-word-problems- 2026-04-07T23:55:07.30621384Z Telling time word problems Solve a word problem to find the duration of an event. Both analog or digital clocks are included. Time in the word problems crosses over the hour. Lindsay exercise