Transcript counting_cows_making_10s

Count
the Cows
By Mary Hall
Georgia Performance Standard
M1N1.a Represent numbers less than 100 using a variety of models,
diagrams, and number sentences. Represent numbers larger than 10
in terms of tens and ones using counters and pictures.
http://public.doe.k12.ga.us/DMGetDocument.aspx/Mathematics%20Grades%20K-2.pdf?p=6CC6799F8C1371F64DF31439E9E589B90A61975E2C4DE9848BA41C81A6E0BDBC&Type=D
NCTM
In prekindergarten through grade 2 all students should—
use multiple models to develop initial understandings
of place value and the base-ten number system.
http://standards.nctm.org/document/chapter4/numb.htm
Count the Count
cows. as the
How many
How many
cows gocows
into the
are in the
cows are there?
barn. barn?
If there are 10 cows in
each barn, count by 10
to find out how many
cows are in these
barns.
There are 10 cows in the
barn, and more cows
outside. Count by 10 for
each barn first, then
count on by ones to find
how many cows in all.
Tens
Ones
1
9
19
Tens
2
Ones
5
25
Tens
4
Ones
3
43
Tens
5
Ones
6
56
Tens
2
Ones
4
24
You
did it!
The End