https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-measurement-data/cc-2nd-measuring-length/v/measuring-lengths-2 2021-06-24T11:10:10Z Measuring lengths (cm, m) Sal measures objects with a ruler. video https://cdn.kastatic.org/googleusercontent/Zpj4S0EuH_qlFQnFunEKVVQenHG3CmG_aERCLtuftqDz17eMrAjcf0xWQ7QBQNw3vtW5zSbJ6jWjMmhKe7FMslo Measuring lengths (cm, m) Sal measures objects with a ruler. https://cdn.kastatic.org/ka-youtube-converted/muC7HMIEYDU.mp4/muC7HMIEYDU.mp4 280 Science process skills 2 https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-measurement-data/cc-2nd-measuring-length/e/measuring-lengths-2 2026-03-25T20:00:51.494577527Z Measure lengths (cm, m) Measure objects using a ruler. All lengths are measured in centimeters or meters. Sarah Ledon exercise https://www.khanacademy.org/math/cc-third-grade-math/imp-measurement-and-data/imp-mass/e/estimating-mass 2021-06-30T20:49:31Z Estimate mass (grams and kilograms) Practice estimating the mass of real life objects using grams and kilograms. Lindsay exercise https://www.khanacademy.org/math/cc-third-grade-math/imp-measurement-and-data/imp-volume/v/liter-intuition 2021-06-30T20:49:32Z Understanding volume (liters) Sal talks about what volume means. He also examines the volume of real objects in liters. video https://cdn.kastatic.org/googleusercontent/9PMEUeQ1_WrqxMBe-azsvZqCCMifDOdB40z5u9nPqpUZvkRZUNw5Wn88_fZQndZQxLF6J6aNc5rk91w-V6iyHl7pyw Understanding volume (liters) Sal talks about what volume means. He also examines the volume of real objects in liters. https://cdn.kastatic.org/ka-youtube-converted/mLRYCaYVWFc.mp4/mLRYCaYVWFc.mp4 288 Science process skills 2 https://www.khanacademy.org/math/cc-third-grade-math/imp-measurement-and-data/imp-mass/v/intuition-for-grams 2021-06-30T20:49:32Z Understanding mass (grams and kilograms) Sal talks about what mass means. He also examines the masses of real objects in grams and kilograms. video https://cdn.kastatic.org/googleusercontent/Y6-8ycMHIAPVXb6OuFU7Vg8UOAjJt5zgHJim313Sw9lHQXuSvp11aVpXLu9cdOciG2UaxqaGzBGNHcflGtj5FwyeLA Understanding mass (grams and kilograms) Sal talks about what mass means. He also examines the masses of real objects in grams and kilograms. https://cdn.kastatic.org/ka-youtube-converted/zqduFg0s5Q4.mp4/zqduFg0s5Q4.mp4 435 Science process skills 2