lesson 2-7 problem solving: draw a picture and write a number sentence mr. baker 2 nd grade

Lesson 2-7Problem Solving: Draw A

Picture and Write a Number Sentence

Mr. Baker2nd Grade

Today We Will Learn!

• Information in a problem can be shown using a picture or diagram and used to understand and solve the problem. Some problems can be solved by writing and completing a number sentence or equation.

Vocabulary

You have learned that using objects can help you solve math

story problems.

Today, you will learn a new problem solving strategy.

STRATEGIES:doubles doubles plus one

making 10

Which strategy can you use to solve these problems?

4 + 4 = 8 + 7 =

4 + 6 = 9 + 9 =

The Problem!!• Suppose Jill dropped 10

counters on the workmat and 2 landed in the first box, 1 landed in the second box, and 3 landed in the third box. The others landed off the mat.

• How could you use counters and a number sentence to find how many landed on the mat?

•2 landed in the first box. So let’s put 2 counters in the first box. 1 landed in the second box so let’s put 1 counter in the second box. 3 landed in the third box, so put 3 counters in the third box.

LET’S SEE!

•What number sentence can we write to show this problem?

• Use your workmat.

•Drop your counters on the mat.

•Try to get as many in the boxes as you can.

•Record your results on your workmat for numbers 2 and 3.

Let’s Explore!!

Learning Bridge!

• In this lesson, you will learn how to solve addition story problems by both drawing pictures and writing number sentences.

• Let’s watch and learn!– CLICK HERE– (After learning bridge use guided practice page to continue lesson then return here for quickcheck and

close.)

CLOSE!

• In this lesson, you learned that you can solve addition story problems by drawing a picture and writing a number sentence.

Math Journal & Technology

• On your I Pad go to the math folder and begin working on Math + Edge.