Numberline Classworks Google App

Google Chrome App for Math

http://numberline.classworks.com/ is a free app or webpage that allows students to manipulate a number line more easily than with paper and pencil.  Students who have trouble with directionality and fine motor control will find this tool to be more user friendly.

There are five icons on the bottom that provide easy access to tools.  

1.  The light blue icon allows the user the change the scale.
2.  The second and yellow icon may be used for skip counting by each number shown on the number line.
3.  The third and purple icon allows the user to show addition or subtraction. When a number is clicked with the mouse jumps are automatically drawn to show related jumps forward or backward,  (See Illustration)
4.  The fourth and green icon seems to be useful for clearing jumps and allow the user and clean number line to work on.
5.  The fifth and red question mark is for help with the app.  The help site includes a video and resources.  The help website link is http://help.classworks.com/home/number-line/

LESSON PLAN Grade 1

CCSS.MATH.CONTENT.1.OA.C.5
Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).

Learning Target:  

       I can show how to use a number line to add 2.

To:  Model and think aloud the use of the "Numberline" app to count on by two.  The app allows an easy to perceive use of these math tool and strategy.  (Since the app can be used on a tablet or computer this modeling can be projected for an entire class to see,)

With:  Ask pairs of students to take turns pulling a number and using the number line to add two.  One student may pull a number and add on the tablet the other will write the number sentence on a small erasable whiteboard.

By:  Independent 

Assess:  Observation or Teacher Made Quiz