What is a model? Why do engineers use models? by Michelle Jennings https://padlet.com/michellejbsea/22toxvqnkklg Guided Questions en-us 2017-03-21 02:39:39 UTC 2018-10-04 16:37:44 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Rocket.png