1-1
groups of objects that contain the same number of items
Equal groups
a line divided into equal units and numbered in order that you can show skip counting on
Number line
Write an array that shows this multiplication problem: 3x4=12
0 0 0 0
0 0 0 0
0 0 0 0
an operation that tells how many equal groups there are or how many are in each group.
Division
a arrangement of objects in equal rows and columns, used to help visualize and understand multiplication and division
Array
an operation that gives the total number when you join equal groups
Multiplication
On your white board, on a number line, show the answer to this problem: Kathy puts 2 plums in each of 5 lunch bags. How many plums does Kathy use? Must have the correct final answer!
Number line should show 5 jumps of 2 and land on 10.
Write an array on the white board that shows 3 rows and 4 columns.
0 0 0 0
0 0 0 0
0 0 0 0
There are 18 counters. They have been put into 3 equal groups. How many counters are in each group?
White board should show 18 counters divided into 3 groups with 6 counters in each group.
Jonas has 20 trading cards that he shares equally among himself and three friends. Show an array to help solve the problem.
White board should show either 5 rows and 4 columns or 4 rows and 5 columns, with 20 dots all together.
counting forward by any other number besides 1
Skip counting
Write on your white board, with a number line, skip counting by 3 to 36.
Should show a number line with equal markings landing at the numbers: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36.
_______________ Property of Multiplication states that numbers can be multiplied in any order and the product is the same.
Commutative
There are 24 medals to give to 4 teams. Each team receives the same number of medals. How many medals does each team receive?
White board should show 24 counters divided into 4 groups with 6 counters in each group.
6x3=
18
show work
Show a picture on your white board that represents this addition problem: 6+6+6+6=24
Your picture should show 4 equal groups with 6 counters inside each group.
Emilio has 4 stacks of pennies. Each stack has 5 pennies. How many pennies does Emilio have? Use the number line to solve.
Number line should show 4 jumps, jumping 5 spaces each time to land on 20.
Write a multiplication problem that represents an array with 3 rows and 4 columns with a final answer.
3x4=12
Mrs. Schultz has 36 drumsticks to give to 9 drummers. Each drummer will receive the same number of drumsticks. How many drumsticks will each drummer receive?
White board should show 36 counters divided into 9 groups with 4 counters in each group. Can also use another tool such as hundreds chart or skip counting. Must show work!
25 divided by 5
5
show work
Write a multiplication equation that represents this addition equation: 4+4+4+4=16
4x4=16
Write a multiplication problem representing the word problem above with a final answer.
4x5=20
Draw an array to show 7 × 4 and an array to show 4 × 7. Write an addition equation to find the total number of objects in each array. (2 total addition equations)
White board should show an array with 7 rows and 4 columns and vice versa for the other problem.
4+4+4+4+4+4+4=28
7+7+7+7=28
80 divided by 10=
Must show work. 80/10=8
Freda saved $4 each week for 8 weeks to donate. She donates the same amount to 2 charities. How much will Freda donate to each charity?
White board should show a 2-step process to find the final answer.
$4x8 weeks = $32
$32 divided into 2 groups (charities) is $16
Can use any tool. Must show work.