## Second
Grade* *Math - Lesson
#15* *

### Lesson
Title: Math/Operations/Adding
Whole Numbers/Tutorial:

Addition Facts with Table

Standards: Arizona 2nd Grade - Math: **S1:C2:PO3;
S1:C3:PO1**

**See
the following website for Arizona 2nd Grade Standards: **http://www.ade.state.az.us/standards/contentstandards.asp

**Directions:**

1. Play
the "Echo" game again from yesterday's
lesson. The student starts by clapping their hands
together 7 times. The guide then echo's the clapping.
Together write a number sentence that tells the
number of claps made in all (7+7=14). Continue
to with numbers 1-9. When finished, look back at
the paper of all the facts and explain that these
are called Doubles Facts.

* Complete the Scott Foresman - Addison
Wesley Math workbook page 46 on doubles.

2.
Make number cards 1-20 on note cards. (Keep these for
later use in lessons.) Place the cards in a pile. Have
our student draw a number and decide if it is a double
sum or not. (2,4,6,8, etc.) Have the student tell the
double fact (3+3=6). If the number drawn is not a double,
(9), have the student use cubes of matching colors
to find the closest double fact (4+4=8). Have them
make two cube trains of 4. Then add one more cube of
a different color cube to one of the cube trains. Explain
that this is using doubles plus one strategy.

3. **Complete the Scott Foresman
- Addison Wesley Math workbook pages 47-48** using
cubes. Ask
how many doubles do you see on this page? How is the other
addition sentence different? (it has one more) How can you
use doubles facts to help you add one more? ex 6+6=12 and
6+7=13 Explain that it is easy to find the double fact and
then count on one more to find the sum.

4. Log
onto __www.compasslearningodyssey.com__ and
select Math/Operations/Adding Whole Numbers/Tutorial:
Addition Facts with Table. Complete the
activity for math facts practice.

5.
Find the Addition facts timed test in the Guide/Student
Materials Packet. Have your student complete the
timed test in 5 minutes to see how many problems
they can get correct.

6.
If time, play a domino game. Place the dominoes face
down on the table in random order. The game is best
played with 2-4 players. Take turns choosing a domino
and matching dots when they can to form a train.
Ask at each turn if the domino is a double fact or
doubles plus one. When a double domino is drawn that
player gets a second turn. ( A double is when each
end has the same number of dots.)

**Total
Lesson Time: 1 hour**