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Lesson 2Learning Objective(s) What students will know and be able to do by lesson's end:Know at least 2 different strategies to add 3 digit numbers Know the terms add, addend and commutative property of addition Materials: PencilsColored pencils/pensScratch paperPrintable place value blocks Key Vocabulary:Add vs. Addend, Associative Property,Compare, Commutative Property of Addition,Decompose, Digit, Difference, Equal, Equation, Expanded form, Expression, Ones, One hundred, Tens, Place value, Regroup, Subtract, Sum, Unit, Whole number Lesson Source (program, page, etc.):Math Textbook Background Knowledge: Unit 2 Lesson #1 Standards for Mathematical Practice:1. Understand place value 2. Use place value understanding and properties of operations to add and subtract.Teacher Actions Student ActionsIntro/Model (__15_ minutes) Introduction, purpose, explanations, think-alouds, visual or worked models, small steps working toward mastery, etc.:What does it mean to add something?Where is adding seen in the real world? Adding in ones is easy but what happens when you do not have enough fingers!Demonstrate step by step how to add 3 digit numbers**Use different strategies Watch short video on commutative property to lecture and ask question if confused Guided Practice (_10__ minutes) Include checks for understanding/ misconceptions, questioning, and engagement strategies and feedback:Ask students to look over notes. Do they understand the terms, the steps? Ask if they can explain it to a friendTurn the classroom into a store and have students shop and solve what their total will be (this activity will be continued the next day)Look over notes and ask question. Participate in activity Monitor Checks for understanding/formative assessment:Pass out a worksheet with question about the lesson and turn it into an exit ticket to recess, like this students will have to ask for help in order to go to recess. Adjust instruction/reteach/additional guided practice (_10__ minutes) Support for students who are not mastering the concept or skill and/or English language learners or students needing intensification:Place students in groups and have them discuss what they do and don’t understand. Students who can explain step by step process will take roles as teachers and help their peersParticipate in group work Independent Practice/Extension/Connections (_5__ minutes) Practice, extend, and apply the skills/concepts (inclusive of work that requires higher-level thinking skills):Work with students who still do not understandClosure (__3_ minutes) Explicitly connect ideas, concepts, and skills together, and clearly connect to the lesson objective(s):Lets reflect on what we have learned. Which addition strategies do you like best? What is the commutative property? ................
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