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1+1 
Mathematics  Numeration 
100 Day  Number Sense  Chalkboard Activites 
Patterning  
Books to Read: 

Number Sense and Numeration  
Worksheets Compare and Order Whole Numbers to 100 What's My Number  Uses a number line and a game similar "to 20 questions." Teacher draws a number line, thinks of a number, students try to discover what number he/she is thinking of by asking greater than/less than questions Addition and Subtraction Facts to 20 Tens and Ones and the Popcorn Ghost Additional Grab Two  a fun game involving addition Counting by 2s, 5s, 10s Have the children sit in a circle.
Count by tens, let's say. Each child says one
number....10, 20, 30,.....to 100. The child who
says 100 is out. Play continues until there is one
child left. I do it by fives to 50, and by twos to
20, but it also can be extended. The kids love it,
and are hearing the counting over and over again.
You can also easily spot the children who don't know it. We play the same game except we do it
that anyone who is on a 10 is out. It works great
for all skip counting since you do 10's in all of them.
So if you are counting around in a standing circle  2, 4,
6, 8, 10  the child who said 10 is out  they sit down
in their spot  keep going  12, 14, 16, 18, 20  that
child is out. It's funny to watch because you see
them trying to figure out where they are going to be and
some of them figure out they'regoing to be out  it's so
funny! Even and Odd Numbers  . When doing even/odd
numbers, I used the book Even Steven and Odd Todd
to introduce even and odd numbers. Then we made a booklet
with half even numbers (ex. 2 dogs, 4 bells, etc.) and
flip the booklet over and all those pages had odd numbers.
Mrs. Ritter's First Grade Critters http://www.myschoolonline.com/md/20646_ritter 

Chalkboard Activities  
Throughout most of the year, we do McCracken
Spelling excercises on chalkboards each morning.
Following the spelling, we do some math exercises while
the chalkboards are still out. Some activities are listed
below. Number Sentences In this activity the children must determine if they are to add or subtract.
Adding On When solving addition facts (e.g., 9 + 5), the students are encouraged to add on from the larger number. I tell them to put the 9 in their heads and count on five more. To practice this skill, which is difficult at first for many students, we practice on the chalkboards.
Option: If you have the students sitting in groups at tables, you can make this a game. Following each question, give 1 point to the table who is finished first ( you will know, because every student at the table will have their hands on their head). At the end of the activity, the table with the most points is the winner. Place Value . Have ready several towers of unifix cubes grouped in tens and some in ones.
Option: To begin the activity have the children draw a line down the center of their chalkboards and write tens on one side and ones on the other side. They will record their numbers in the appropriate columns. 

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