TI -15 Guia Do Utilizador
© 2000 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-15: A Guide for Teachers
56
Addition as “counting on”
There are 4 frogs in a pond. If 3
more frogs jump into the pond 1 at
a time, how many frogs will be in the
pond?
more frogs jump into the pond 1 at
a time, how many frogs will be in the
pond?
Constant
Operations
›
Add
T
P r e s s
D i s p l a y
› T 1 ›
( s t o r e s
o p e r a t i o n )
o p e r a t i o n )
Op1
Û 1
4
( initialize u s i n g 4 )
Op1
4
›
( a d d 1 o n e a t a
t i m e )
t i m e )
Op1
4 Û 1
1
1
5
›
Op1
5 Û 1
2
2
6
›
Op1
6 Û 1
3
3
7