Lesson Plan - Get It!
There is More Than One Way to Solve Most Problems
You and your friends shared 27 pieces of candy. If each person had 9 pieces of candy, how many friends shared the candy in all? By the way, it was nice of you to share!
Consider the following questions when solving word problems:
- What do you want to find?
- The total number of friends
- What information do you know from reading the problem?
- There are 27 pieces of candy.
- Each person has 9 pieces.
- What could you do?
- You could draw a picture, use a diagram, write a number sentence, use base ten blocks, or counters.
- What math operation did you use?
- You could have used multiplication, addition, subtraction, or division!
- What is the answer?
- There were 3 people total.
- How do you know your answer makes sense?
- Is your answer reasonable?
- Did you check your work to be sure you were correct?
Wait! What do you mean I could use any math operation to solve the problem?
Division 27 ÷ 9 = 3 Well, that will definitely work! If you divide 27 into 9 equal groups, you will get 3.
Multiplication This would look like a missing factor problem: ____ x 9 = 27. Refer to the table below:
|# of people
||Pieces of candy per person
||Total pieces of candy
Addition Count by 9s or use repeated addition until you reach 27: 9 + 9 + 9 = 27
Subtraction 27 - 9 = 18 - 9 = 9 - 9 = 0. Subtract 9 from 27 until you get to zero. That took 3 9s.
There are many strategies you can use to solve a problem. Try different ways, but be sure to use the strategy that works best for YOU.
- number line
- equal groups
- tally marks