How can estimating help us when solving division problems? What strategies can we use to efficiently solve division problems? MATERIALS Counters Four in a Row” game board (printed on card stock and/or laminated for durability) “Division Calculators GROUPING Small Group or Partner Task TASK DESCRIPTION, DEVELOPMENT AND DISCUSSION: Comments Being able to estimate and mentally divide a 3 and 4-digit number by a 1-digit number is an important pre-requisite skill for dividing a whole number by a 2-digit number. Helping students develop their mental computation or estimation ability in general is also an important focus of Grade 5 MCC. This task challenges your students with game boards that contain simple 4-digit numbers in the Dividend Box or multiples of 10 (i.e., 10, 20, 90) in the Divisor Box. … KEY TO DIVISION FOUR IN A ROW GAME 360÷10 8640÷12 2040÷24 8640÷6 3360÷10 3360÷12 36 720 85 1440 336 280 1320÷15 2040÷10 720÷6 360÷24 1320÷30 3360÷6 88 204 120 15 44 560 360÷12 8640÷10 1320÷10 3360÷24 360÷6 2040÷30 30 864 132 140 60 68 360÷15 1320÷12 2040÷15 3360÷15 360÷30 3360÷30 720÷30 110 136 224 12 112 24 360÷15 2040÷12 1320÷6 1320÷24 720÷24 8640÷30 720÷30 170 220 55 30 288 24 8640÷24 2040÷6 720÷15 8640÷15 720÷12 720÷10 360 340 48 576 60 72 This game can be made available for students to play independently. However, it is important for students to some of the strategies they develop as they play. Strategies may include:
How can estimating help us when solving division problems? What strategies can we use to efficiently solve division problems? MATERIALS Counters “Division Four in a Row” game board (printed on card stock and/or laminated for durability) Calculators GROUPING Small Group or Partner Task TASK DESCRIPTION, DEVELOPMENT AND DISCUSSION: Comments Being able to estimate and mentally divide a 3 and 4-digit number by a 1-digit number is an important pre-requisite skill for dividing a whole number by a 2-digit number. Helping students develop their mental computation or estimation ability in general is also an important focus of Grade 5 MCC. This task challenges your students with game boards that contain simple 4-digit numbers in the Dividend Box or multiples of 10 (i.e., 10, 20, … 90) in the Divisor Box. KEY TO DIVISION FOUR IN A ROW GAME 360÷10 36 8640÷12 720 2040÷24 85 8640÷6 1440 3360÷10 336 3360÷12 280 1320÷15 88 2040÷10 204 720÷6 120 360÷24 15 1320÷30 44 3360÷6 560 360÷12 30 8640÷10 864 1320÷10 132 3360÷24 140 360÷6 60 2040÷30 68 1320÷12 110 2040÷15 136 360÷15 720÷30 24 3360÷15 224 360÷30 12 3360÷30 112 2040÷12 170 360÷15 720÷30 24 1320÷6 220 1320÷24 55 720÷24 30 8640÷30 288 8640÷24 360 2040÷6 340 720÷15 48 8640÷15 576 720÷12 60 720÷10 72 This game can be made available for students to play independently. However, it is important for students to some of the strategies they develop as they play. Strategies may include:
CCGPS_Math_5_Unit1Framework.docx