FROM MaRilyn BuRns - Scholastic

TM1 2Write an equationfor colors.Write an equationfor rows.Home Note: Your child writes equations with sums to 9.Lesson 5Created byMarilyn BurnsLesson5 Assessing student understandingPrevious Lesson Students usethe benchmark of 5 to represent sumsof 6 to 10.Lesson 5 Students demonstrateunderstanding of the objectives ofLessons 1–4.Next Lesson Students write equations forproblems with a sum of 10 and then identifythe missing addend.Lesson SummaryStudents demonstrate understanding of theobjectives of Lessons 1–4 by completing aWorkSpace page independently.Objectives• Use the benchmark of 5 to represent sumsof 6 to 10.• Identify pairs of addends with sums to 9.• Communicate ideas with key math vocabulary:add, addend, addition, equals, equation, plus,and sum.Materials• WorkSpace pages 9 and 10• ten-frames S T• two-color counters S T Teacher Bag Student BagInteractive Whiteboard ToolsWorkSpace pages and manipulatives for Lesson 5 areprovided on the Interactive Whiteboard Tools CD-ROM.Language DevelopmentKey Math VocabularyENGLISHaddaddendadditionequalsequationplussumAcademic VocabularyENGLISHrowCognates are shown in italics.SPANISHsumarsumandoadiciónes igual aecuaciónmássumaSPANISHfilaStep1whoLe group1 Introduce the lesson.Students use thebenchmark of 5 to add.Today, / we’ll write two equations for sums of 7, 8, and 9.Then you will show me how much you know about using5 to help you add numbers with sums to 9. When you havefinished, if you have time, you can play Shake and Spill for7, 8, and 9 counters.2 Write two equations for a sum of 9.First / let’s add 2 plus 7. On your ten-frame place 2 reds andthen 7 yellows.Check to be sure students do this correctly.If we / look at the colors, we see the addition problem2 + 7. If we look at the rows, we see the addition problem5 + 4. Use the five counters in the first row to help youfind the sum of 2 + 7. (9)We can write two equations. Looking at the colors, wewrite 2 + 7 = 9. Looking at the rows, we write 5 + 4 = 9.Write the equations on the board.2 + 7 = 95 + 4 = 9Point to each equation as you say:Both / 2 + 7 and 5 + 4 are equal to 9.Step2whole groupStudents use thebenchmark of 5to add.1 Write two equations for a sum of 8.Write 6 + 2 on the board.2 + 7 = 95 + 4 = 96 + 2Place / counters on your ten-frame to show thisaddition problem.Use / the first row of 5 to help you figure out theanswer. What did you get? (8) What equationscan you write? (6 + 2 = 8 and 5 + 3 = 8)Write the equations on the board.2 + 7 = 95 + 4 = 96 + 2 = 85 + 3 = 8Supporting inStructionSince this is the first written assessment, explainto students that the purpose of the assessment isto let you know what they have learned and whatmore they need to learn. Explain that although weusually encourage them to work together, for theassessments they will work by themselves withoutconferring with a partner.individualsStudents completean assessment.Step31 Explain the directions for WorkSpacepage 9.Have students turn to WorkSpace page 9. Explainthe directions.Usually / you work with a partner, but for this pageyou’ll work by yourself so that I know what you’velearned and what you still need to learn.2 Students complete WorkSpace page 9.TM & © Scholastic Inc. All rights reserved.Show What You KnowDIRECTIONS1 8 95 4 9Equations3 5 81 25 3 82 5 73 45 2 74 5 95 65 4 91 5 67 85 1 63 6 99 105 4 92 6 811 125 3 8Equations7 2 95 4 96 3 95 4 92 4 65 1 68 1 95 4 94 4 85 3 82 7 95 4 99When / you finish page 9, you may play Shakeand Spill for 7, 8, or 9 counters. Use WorkSpacepage 10 to write your equations.Supporting inStructionGive students as much time as they need tocomplete the assessment page. Some students maywant to rush through the assessment so that theycan play the game, especially if they see othersplaying. Assure students that they will get sometime in the following week to play the game if theydon’t get to do it today.Addition & Subtraction Number CoreTeacher GuideLesson 5After the lesson22The Benchmark of 5Lesson 523DTM_NC_TG_022-024_L5.indd 222/9/11 1:05 PMDTM_NC_TG_022-024_L5.indd 232/9/11 1:05 PMAddition & Subtraction: Number CoreReduced Teacher Guide, pages 22–23