8C2

Open Number Sentences

Solving a variety of fill-in-the blank number sentences, where children need to keep the value of both sides the same is good practice in algebraic thinking. Some good 2nd grade open number sentence problems are:

3 + __ = 5 - 1

14 + 3 = 10 + ___

5 + 9 = __ + 6

4 + 3 = 10 - __

__ + 1 = 4 + 5

16 - 4 = __ + 2

The problems where the __ comes just to the right of the = are the trickiest.

Sub problem:

Some intermediate steps that would take you from an easy to a hard problem:

5 = ___	5 = ___	5 = ___	5 = ___
5 = 4 + __	5 = 0 + __	5 = 4 + __	5 = 0 + __
5 + 2 = 2 + __	5 + 2 = 4 + __	5 + __ = 4 + 4	__ + 3 = 3 + 1
5 + 1 = __ + 2	5 + 1 = __ + 2	5 + 1 = __ + 2	5 + 1 = __ + 2

Some things I did in the intermediate problems:

The second problem had 5 on the left, and a sum with a missing addend on the right (where the sum on the right was really easy)
The third problem had 3 numbers, but the missing number was not just to the right of the "="; it was in one of the other 3 places

Things I didn't do:

I didn't have a problem with the __ just to the right of the "=". So iI didn't make it easy to think of the "=" as the answer comes next

Some other good ideas are to mix in some "just right" difficulty true-false equations.

What are things that elementary teachers can do to help children feel comfortable and familiar with the "same as" meaning of the = sign?

Try to remember, or figure out each of these ways to teach this important concept, and then click to check your answers.

A. Language

B. Equation Habits

C. Open Number Sentences

D. True False Equations

E. Fix Your Errors

F. Equation Chains

G. Use another notation for the value of calculations to the left and right of an = sign

This is the last topic, so when you have looked at all of these, you are done with this study assignment.

= Sign

Open Number Sentences

Solving a variety of fill-in-the blank number sentences, where children need to keep the value of both sides the same is good practice in algebraic thinking. Some good 2nd grade open number sentence problems are:

The problems where the __ comes just to the right of the = are the trickiest.

Sub problem:

Some intermediate steps that would take you from an easy to a hard problem:

5 = ___

5 = ___

5 = ___

5 = ___

5 = 4 + __

5 = 0 + __

5 = 4 + __

5 = 0 + __

5 + 2 = 2 + __

5 + 2 = 4 + __

5 + __ = 4 + 4

__ + 3 = 3 + 1

5 + 1 = __ + 2

5 + 1 = __ + 2

5 + 1 = __ + 2

5 + 1 = __ + 2

Some things I did in the intermediate problems:

The second problem had 5 on the left, and a sum with a missing addend on the right (where the sum on the right was really easy)

The third problem had 3 numbers, but the missing number was not just to the right of the "="; it was in one of the other 3 places

Things I didn't do:

I didn't have a problem with the __ just to the right of the "=". So iI didn't make it easy to think of the "=" as the answer comes next

Some other good ideas are to mix in some "just right" difficulty true-false equations.

What are things that elementary teachers can do to help children feel comfortable and familiar with the "same as" meaning of the = sign?

Try to remember, or figure out each of these ways to teach this important concept, and then click to check your answers.

A. Language

B. Equation Habits

C. Open Number Sentences

D. True False Equations

E. Fix Your Errors

F. Equation Chains

G. Use another notation for the value of calculations to the left and right of an = sign

This is the last topic, so when you have looked at all of these, you are done with this study assignment.