This exploration provides students the opportunity to actively engage in creating their own knowledge about exponential models. Title: The Spread of a Virus: Does Social Distancing Matter? Subject: Mathematics (9 - 12), Mathematics (9 - 12) Define exponential functions to represent situations in which a quantity grows or decays by a constant percent rate per unit interval relative to another. This activity was created as a result of the ALEX Resource Development Summit.Ĭ. Students will follow along with the video using small concrete objects and illustrations to represent the word problems from the video. Students have the ability to add to or take from, and compare quantities to solve word problems within 20 like fewer or more than. The video is engaging and offers 4 methods for adding and subtracting in a word problem. It includes the use of addition and subtraction strategies like counting on and how much more. The video uses relatable objects, a friendly robot guide, and equations with a symbol for the unknown number to represent the problem. This learning activity is a great introduction for problem-solving using addition and subtraction to solve word problems within 20. Title: Introducing Addition and Subtraction Word Problems Compare quantities, with difference unknown, bigger unknown, and smaller unknown while solving word problems within 20.
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