Question

rectangular arrays/area models: grids or drawings to represent the dividend as the area of a rectangle. the divisor is one side - length, the quotient is the other.
how do i draw an array?
the word problem will determine which way to draw the array
bob has 12 marbles. he puts them into 3 cups. how many marbles will be in each cup? 12÷3 = 4
there will be 4 marbles in each cup
bob has 12 marbles. he puts them into 4 cups. how many marbles will be in each cup? 12÷4 = 3
there will be 3 marbles in each cup
remainder: the amount left over that cannot be evenly divided into a whole - remainder is always less than the divisor. it helps you to know if your division is complete.
divisor → 5
361
-35
11
-10
1
← dividend
← quotient
← remainder
quick questions, do now
meaning of division use counters to solve.

1. divide 18 counters into 3 equal groups. how many counters are in each group?

6 counters
18÷3

1. divide 21 counters into 7 equal groups. how many counters are in each group?

3 counters
21÷

Explanation:

Step1: Recall division concept

To find the number of counters in each group when dividing, we use the division operation. The total number of counters is the dividend and the number of groups is the divisor.

Step2: Solve first problem

For dividing 18 counters into 3 equal - groups, we calculate $18\div3$. Since $3\times6 = 18$, the number of counters in each group is 6.

Step3: Solve second problem

For dividing 21 counters into 7 equal - groups, we calculate $21\div7$. Since $7\times3=21$, the number of counters in each group is 3.

Answer:

1. 6 counters
2. 3 counters