Chapter. Lesson. arrays. as skip-counting. multiplication

Transcription

1 Chpter 2 Rectgulr Arrys Strds, 2,, 6, 8, STUDENT Plner OBJECTIVES To identify = To fd Dily A Activities Open- -Ended pirs s. Solvg/Hedle Rows, Sry Columns, Skills Prctice e TR: s 9 Hidden s Interventi Arrys Instructi Solvg Extensi Literture Cnecti Notes About explores relted order s s Prctice (TG p. 92) g successful unw Thk y Mth! cvenience, develop lerng lern. tsk shortut In 2.6, vocbulry In bout rr prior g notti my s shortcut, difficult if y such complete Chpter 2-2.6, out this or who Mmtics look quickly respd wy wrd divisi t rectgulr msterg fcts. elements It is smll bsic it step from rememrg pic given do not 4x not expect hs 5 = 2 2. This mstery process producg is grdul, so do right wy s skip-g troduced. ctivities Explorg wys prt help this less s combed or split s y work cqurre fcts or 86 SR9 notti About product. th tedious kd t pirs this less, could E9, g must g see look not ffect this less presents P9 Spirl does 7 Extensi p. 92) ccept. fcrs pper p. vocbulry rectgulr -AM7 (IG P. 92) lesss This less AM- (TG p. 84) Msters, (TG p.9) (TG p. 92) (TG Chs sheet SH ed fct (TG p. 9) Rectgulr Differentited blk ) s 88-9 sme 8 22 Tech (TG P. 87) rectgulr model 2-22

2 n pily Activities Developg Mmticl Lguge Vocbulry: Open-Ended, Sh Hedle When --2 sk low, drw eir Sry solved clss. Solvg Encourge mti from crete sry Hedle sn Sry is correct By not requrg specil rule nmg exmple, first nmed see ( s (or VO follow help sries s this -- r is commuttive fcrs does not ffect respses: 4+4= should but words green ssocite it is not importt prticulr fct lwys product), y s- s) order J mde nme 4: There sme blue : I hd 8. I bought sticker 4d m or unique eir se T two s MA Skills Prctice Addg Fmilirize Sy 9 Chs terms, sk r. respd ddg 9. For exmple, Pot Begng rectgulr, if 8," sy Choose tell student would dd respd 9 sum. "'7. Ctue 26, m. or. pot tell m Hve pot out s s selectg previous ddg sum. If 9, suggest djust ir skg swer y m dd dificulty dd subtrctg 9 n 44 5 Intermedite. Present rectgulr. drw sk dditil copy dditil m drw You might notice ech. s Chllenge hs s sk verticl supply. ptterns, decresg. Repet s Advced mke this s time This such list list llows s tens ctivity s swers digits digits cresg or strtg llows drw 5 hs Chpter 2 e 87

3 2I Tech whole Prctice clss MIN A Rows, Columns, s Mterils Purpose For AM-AM7 To troduce techer Strds situtis Chpter Multiplicti Situtis,, 8, rectgulr 2 Introduce The Student Der Student Letter troduces Do situtis Hve use dividully red s clss wht Here mge rectgle mde ll? Imge run Note recognize Tsk Arry s g Crds sk r clss shop. There out. These lredy developg who t time my need gement prctice skip- -g s or s X s 5 fcts x chpter, street swich three bred wys thk " swiches bout strt Mmticlly The uthors will see lern fcts. rs, Thk Mthl until mstered ed streets four encour move y y kd different kds. mke? In this ide four streets street. crd my four swich fillgs. There kds bred. fillg- work ech north-south est-west re? exmples. There three Every use It hs est-west. crosses every tersectis mge S three ty wn. run north-south /OngogAssessment situtis dditi? s letter or ger sted Student Hbook p. 7 from 5 Some. t time bove) my Or ( 4s or my crd Arry Crds Do crd sn t time Do ( s suggests elicit this crd bove). skip-g If no method, try respse 88 Chpter 2 Mster Mster Mster Mster Mster

4 2 Demstrte (or student demstrte) s s rectgulr 2 4 s 4 s ( Msters through 7 will used next ctivity future lesss.) Tlk Mth Wht shpe do ll ech crd m? Wht wys fd Arry Crd? swer: Count skip- - Which wy do use? Expl why. swer: Skip- g or, cuse it tkes less time 2-22 Chpter 2 89

5 whole clss. 2 MIN Hidden s Mterils Purpose For To determe rectgulr when techer: hidden AM-AM7 blk sheet pper Introduce Strds, 6, 8, Crds when Tsk Hold S few Now up Arry s? so djcent edges, css not pper,? Arry " ctue s? fdg see s, (lcludg Crds. blk sheet pir t right. this s, process Be crd, sk, ly crd Arry orientti blk Repet Crd s sn see). hidden s, prt pper crds, s, cover prctice fdg sure y vry plcement edges rest s Tlk Mth Differentited Instructi Bsic difficulty If fdg when hidden, 9 or Look sme fd t, or, hidden s, hidden is sn. or s, s The cuse or hidden m will rectgle s grdully or did were pper Chpter 2 figure covered out up? swer: looked crd t when movg blk s? demstrte skip-g s revel skip- -ed s t time 2-22

6 dividuls Rectgulr Arrys 2 LABPP.2-22 MIN Purpose To identify rectgulr p. 2 Nme Dte/Time Strds Rectgulr Strds, 2, 6, 8, ry grde Arrys chirs. Ech clssroom? solve s r clssroom, hs problem. re 4 chirs. Drw Write p. 22 s s chirs, , swer? Drwgs my chirs clssroom 2 is given 4+4+ s vry. 4 = 2? D tl tl tl two bove. List 2 5 They pirs expl why 9, 4 sme Chllenge sme pirs mtch, 7,, 8 but 4, 2 5 tl turned different wys x7 ABOUT THE, Techg The. y tble. look In when To multiply rrged, 2 22 twenty-two ABOUT dd XXI THE digit 2 x PAGE NUMBER pldrome. pldrome? 22 is secd It is multiple Is it multiple Techg 2 mirror m --2 or fd In 7 s ne, but Notes Encourge strd will fd this pge. 2 skip- -g s twenty-. two- Wht's next, o? Why? pge use workg pirs 2 result. LAB xxi 2 is trigulr. dys? multiply this pge Encourge NUMBER 2 itself Notes PAGE weeks A solve s s In ech help LAB drw problem. designed pge s color combed g 22 help 9- -2, fd thk mke spce tl. bout lrger The, s two or smller brek m viewed 7 from two different orienttis. For exmple, s up sme lrge 5 x 5 = - 25, Reflect s, Summrize s, rectgulr smller fill squ y 5 corner, esier-- -mge fd squ just visulize e ddg s it. If y. crete By plcg 6- if -6 Lessom or words s smller, y dot Write Chllenge Mth s dd fd descri swer: I wys fd, skip-, brek tl Chpter 2 9

7 Differentited Instructi ed Michel Bsic drew 5 squs. drw? did Michel Expl. There he mkes ech 5 shpes drew 5 circles low ech shpe. 8 shpes shpes Above drwg Solvg Michel shpes swer: 2 s On shpes sme There did he dd drws shpes Michel ech will swer: Ech 8 shpes, Imtervenn Combg Rectgulr OIn ech drde, write tl two boxes uchg cirde. Hve pirs mke now? will s 8 is 24 Extensi Prctce Arrys ech 24 shpes; drws s, Expl. 4 shpes 's three shpes? new If his friend 5 trigles ll. Michel lger squs Arrys O Fill group tl Rectgulr ech Arrys box or boxes ers m, " groups re 8 7 ech g 6 ers Next, 4 re ech 2 fd 56 9 (9 combe write dditi O Fill tl ech ll does NOT equl hundreds,2 O Wht 27 2 hundreds, 2 tens, C hundreds, 2 tens, D. hundreds, I ten, s is 2, tens, s B. missg? 4, 5 tl i Extensi Spirl pge SR9 Quick Write time sn ech clock. e fter tell time. skills followg previously lerned ccepts e 4 9 mutes fter or tellg time 52 mutes 4 mutes fter 2 mutes e ers. my wish work ers. crete possible Chllenge m 2 complete fter 7 mutes 5 or pge 54 mutes Numr Fd e fd Hve m ers mutes 6 2 mutes fter e fter 7 mutes 7 or student ers 9+87 = = found who mke ctg Spirl = encourged crete should 2 2 ly = 9 - y 2 or e Opertis 8+ Chpter 2 expl sum lrgest sums 6 mutes prtner t lest ir. You quickly fdg E9 Counters Provide Mesurement provides words review tl. Prctice Spirl box Test ers ? Which s " 8 2 SR9 th g expl ir method 2-22