ABOUT THE NUMBER NINE.

Is 9 one more than 8? Hold up 9 fingers. Make 9 steps and count them as you step.

ааааааааа

How many a's are in the above row? Count and see if there are 8 a's and 1 a? 7 a's and 2 a's? 6 a's and 3 a's? 5 a's and 4 a's?

What are the two parts of 9? Ans.

{

8 and 1, 7 and 2 ̧

6 and 3, 5 and 4.

ADDITION.-Uniting the parts.

Count 9. How many are 8 men and 1 man? 7 m's and 2 m's? 6 cats and 3 cats? 5 c's and 4 c's? What are the two parts of 9? When united do they make 9? Is 1 more than 8 the same as 2 more than 7? Is 3 more than 6 the same as 4 more than 5? How many are 4 and 5? 5 and 4? 6 and 3? 3 and 6? 7 and 2? 2 and 7?

Five eggs in one nest and 4 eggs in another; how many eggs in all? 7 tulips and 2 tulips are how many? 6 daisies in one cluster and 3 in another; how many daisies in both clusters?

Copy and read: 1+8=9; 2+7=9; 3+6=9; 5+ 4 = 9.

SUBTRACTION.-Taking away one part.

Count 9 backward. How many are 2 ducks less than 9 ducks? 4 doves less than 9 doves? 6 rats less than 9 rats? What are the two parts of 9? When one of them is taken from 9, what is left? 9 birds were on a limb, but three of them have flown, how many birds are left? The old hen has 9 chicks; 6 of the chicks are on one side of the fence, how many are on the other side? A boy had 9 marbles but lost 5 of them, how many marbles had he left? If 7 chairs are 1 part of a set of 9 chairs, how many are in the other part? 7 from 9 leaves how many?

Copy and read: 9-1-8; 9-2=7; 9-3-6; 9— 4-5; 9-5 -4.

MULTIPLICATION.-Uniting equal parts.

Make 9 a's. How many times did you make 1 a? How many, then, are 9 times 1 a? 9 times 1 horse?

9 times 1 boy? Are 3 a's a part of 9 a's? If you make 3 a's 3 times, thus: aaa, aaa, aaa, how many a's will there be in all? How many, then, are three times 3? 3 times 3 cows? 3 times 3 cats? Show me 3 times 3 fingers. Show me 3 times 3 planks. Little Hal is 3 years old, and Mattie is three times as old as Hal; how old is Mattie? Are 9 times 1 dollar more than 3 times 3 dollars?

Copy and read: 9×1=9; 3×3=9.

DIVISION.-Measuring by a part.

How

Does 9 a contain its parts? Is 1 a one of the parts? How many a's does a row of 9 a's contain? Make 9 a's. Erase 3 a's at a time, until all are gone. many times did you erase? are 3 a's contained in 9 a's?

How many times, then,

How many times is a

Is a yard-stick 3 feet long? yard-stick contained in 9 feet? What is a yard-stick for? Ans. For measuring. Can I measure a pole, 9

feet long, by it? How many measures would it take? How many does 7 lack of containing one 9 times? How many does 5 lack? 6? 8? 3? How many do 8 cups lack of containing 3 cups 3 times? How many

do 4 cups lack?

Copy and read: 9÷1=9; 9÷3=3; 9÷9=1.

OBJECT EXERCISES.

Take 9 blocks, put them on the table and call them horses. What stands for horses?

Ans. h.

Now separate the horses into two parts every way you can, calling the results thus: 1 h and 8 h's are 9 h's, etc.

N. I.-3.

Next take off 1 horse at a time, calling the results thus: 1 horse from 9 horses leaves 8 horses; 2 h's from 9 h's leave 7 h's, etc.

Next put on one horse at a time, calling the results thus: 1 time 1 h is 1 h; 2 times 1 h are 2 h's, etc.

Next take off 1 horse at a time, calling the results thus: 1 h contains 1 h, 1 time; 2 h's contain 1 h, 2 times, etc.

Next put on 3 horses at a time, calling the results thus: 1 time 3 h's is 3 h's; 2 times 3 h's are 6 h's, etc.

Now take off 3 h's at a time, calling the results thus: 3 h's contain 3 h's, 1 time; 6 h's contain 3 h's, 2 times, etc.

NOTE.-The teacher may repeat the object exercises, giving the blocks or pebbles such names as will interest and amuse the pupils.

LESSON X.

ABOUT THE NUMBER TEN.

What lesson is this? What is it about? 10 is the

next number after what?

many have you? How many frogs in the picture? How many are on the log? How many are on the ground? If another frog gets on the log, how many would then be on the log and ground? How many

Count all your fingers. How

if 2 frogs more get on the log? How many if 3 frogs more get on the log? 4 frogs more? 5 frogs? Is one part of 10 frogs on the log and the other part on the ground? 1 and 9, 3 and 7,

What are the two parts of 10? Ans.

2 and 8, 4 and 6, 5 and 5.

ADDITION.- Uniting the parts.

How many are 7 frogs and 3 frogs? 8 f's and 2 f's? 9 f's and 1 f? 4 men and 6 men? 5 m's and 5 m's? 3 birds and 7 birds? 2 b's and 8 b's? What are the two parts of 10? How many do they make when put together? How many are 5 marbles and 5 marbles? 7 eggs and 3 eggs? 6 cakes and 4 cakes?

Charles is 7 years old and Fannie is 3 years older; how old is Fannie? Mary has 6 roses and Jane has 4 roses; how many roses have both girls?

Copy and read: 4+6=10; 8+2=10; 3+7=10.