You’re Not Too Young for Algebra!

The Equal Sign

Beatriz Miyares Kimball

McDermott Elementary

Little Rock, AR

The Equal SignObjective

s

Resources

Watch and Learn

Game

Pan Balance

Independent

practice

You’re Not Too Young for Algebra!

The End

A.5.2.2 Students will express mathematical relationships using equalities.

Students will match equivalent sums.

Students will use a balance to write

equivalent sums.

Students will identify missing addends in equivalent equations.

Hi! I’m an equal sign.

Many people think that when they see me they are supposed to find the answer to an equation.

3 + 4 = _7_

An equal sign really means “is the same as.” When you see an equal sign, both sides of the equation must be equal.

3 + 4 = 5 + 2

3 + 4 = 5 + 2

=

Ms. Gregory gave each class the same amount of sports

equipment.

1 12 23 3 4

4 5

5

66

77

http://www.clker.com/clipart-15136.html

Ms. Croft and Ms. Powell had the same number of children with good behavior. Ms. Croft had 4 girls and 6 boys. Ms. Powell had 7 girls and 3 boys.

4 + 6 = 7 + 3

=1 12 23 34 4

5

5

6

6

7

7

8 89 910 10

Click the mouse.

Ms. Kirchner had 8 red pencils and 5 blue pencils in one box. She had some red pencils and 6 blue pencils in the other box. If she had the same number of pencils in each box, how many red pencils did she have?

8 + 5 = ____ + 6=

7

7

http://www.clker.com/clipart-15136.html

1 2 3 4 5 6

Ms. White sold some pencils and 9 pens on Monday. She sold 8 pencils and 7 pens on Tuesday. If she sold the same number each day, how many pencils did she sell on Monday?

____ + 9 = 8 + 7

=1 2 3 4 5 6

Click the mouse.

6

http://www.clker.com/clipart-15136.html

A number balance can demonstrate the properties of the equal sign.

Click the blue oval.

When you are finished, close

the website.

Watch!

Now you can practice using a balance to build equivalent sums or you can choose to

play a game.

Use a balancePlay a game

Let’s play a Game

Have fun.

9 + 6 = 15

9 + 6 = 15

4 + 5 = 9

6 + 6 = 126 + 6 = 12

9 + 6 = 15

4 + 5 = 9

6 + 6 = 12

6+ 5 =11

Do you know your equivalent sums?

6 + 3 = 9

7 + 8 =15 7+ 7 = 144 + 6 = 10

2 + 6 = 8

10 + 6 = 16

9 + 4 = 13 6 + 6 = 12

4+ 5 = 9

9 + 6 =15

7 + 9 = 16

3 + 8 = 11

6 + 8 = 14

7 + 10 =17

7 + 5 = 12 5 + 5 = 10

4 + 4 = 8

6 + 7 = 13

6 + 5 = 11 9 + 8 = 17

9 + 8

7 + 10

5 + 5

4 + 6 7 + 7

6 + 8

7 + 8

9 + 6

6 + 5

3 + 8

9 + 4 6 + 76 + 6

7 + 5

7 + 9

10 + 6

6 + 3

4 + 52 + 6 4 + 4

www.murray.k12.ga.us

I hope you matched all

the pairs correctly!

Let’s try using a balance to build equivalent sums.

The instructions are on the next slide.

Close the site when you are done.

1.Move and scroll the screen so you can see all of the balance.

2. Click the red pan. Click buttons to type a sum.

3. Click the blue pan. Click buttons to type an equivalent sum.

4. Reset the balance for a new set of equivalent sums.

Click the balance!

Let’s Practice

7 + 4 = ____ + 3

11

4

8

Click the

correct addend.

7

7

9

14

6

Try Another Problem

8 + 6 = ____ + 7

Click the

correct addend.

7

9

13

6

Try A Different Problem

____ + 4 = 6 + 7

Click the

correct addend.

17

10

3

6

Try This Problem

4 + 6 = 7 + ___

Click the

correct addend.

21

10

3

9

Try One More

9 + 6 = 6 + ___

Click the

correct addend.

What does the equal sign mean?

A

B

Find the answer to a math problem.

One side of an equation is the same as the other.

You may want to try this program again

later.

Great Learning!

Good Bye!Click your right mouse button.

Then click “end show”.

Click the red “x” to close the program.

Resources

http://www.tlionline.net/

http://www.clker.com/clipart-15136.html

clip art\ahh-sympathy-ver3.wav

http://illuminations.nctm.org/ActivityDetail.aspx?id=26

www.murray.k12.ga.us

http://www.youtube.com/watch?v=517db7urh0o