1st–2nd GradeObjectives• Studentswillexpressthesamenumbermultipleways.

• Studentswillsolvesimpleadditionandsubtractionproblems.

Materials Needed• Chalkboardandchalk(orwhiteboardandmarker)• Pocketchart• Numbercardsandequationstrips• “Getto10!”activitysheet• Numbertilesreproducible• Scissors

Procedure1.Writeontheboard,“Howmanywayscanwemake8?”

2.Thenaskeightstudentvolunteerstocomeuptothefrontoftheroom.Havethestudentsstandingroupstorepresentexpressionsthatequaleight.Forexample,haveonestudentstandawayfromtheotherseventoshow1+7.Thenhavethestudentsdivideintotwoequalgroupstoshow4+4.

3.Invitetheclasstocalloutdifferentexpressionsforthestudentvolunteerstorepresent.Writeeachnewexpressionontheboard.

4.Tellstudents,“Wecanalsofindsubtractionexpressionsthatequaleight.Ifwehad10studentvolunteers,wecouldshow10–2.”

5.Invitestudentstothinkofothersubtractionexpressionsthatequaleight.Thenaddthosetothelistontheboard.

Guided Practice 1. Printandcutapartthenumbercardsandequationstrips.Placethenumbercardsalongthetoprowofapocket

chart.

2.Dividetheclassintogroupsoffiveorsix.

3.Mixuptheequationstripsanddistributethemamongthegroups.Instructstudentstoplacetheirstripsunderthecorrectnumbersonthepocketchart.

4.Afterallgroupshaveplacedtheirstrips,pointoutthatthepocketchartnowshowsfivedifferentwaystomakeeachnumber.

Independent Practice 1. Giveeachstudentacopyofthe“Getto10!”activitysheetandthenumbertilesreproducible.

2.Havestudentscutapartthetilesandplacethemfacedownorputtheminapaperlunchbag.Explainthatstudentswillbeusingthenumbertilestobuildfourdifferentequationsthatequal10.

3.Instructstudentstodrawonetileatatimeandplaceitinablankspaceontheactivitysheet.Ifstudentsdrawatiletheycannotuseinoneoftheequations,havethemplacethetileinadiscardspaceatthebottomofthepage.

4.Challengestudentstobuildallfourequationsbeforetheyfillupthediscardspaces!

©Lakeshore www.lakeshorelearning.com

4+2

12-6

69-2

3+3

76+3

8+1

97+5

12

9 126 7

©Lakeshore www.lakeshorelearning.com

3+32+45+24+39-2

4+29-312-610-311-4

©Lakeshore www.lakeshorelearning.com

8+15+410-18+47+5

6+312-36+610+215-3

©Lakeshore www.lakeshorelearning.com

1. Choose one number and turn it over. Place it on one of the empty spots.2. Continue drawing numbers, placing them on the spots to make equations that equal 10.3. If you pull a number that you cannot use, place it in the discard area below.4. Try to build four equations that equal 10 before your discard area is full.

0 1 2 3 45 6 7 8 90 1 2 3 45 6 7 8 9