1. FREE Sample! Open Number Lines with Freddy the Frog
By Lindsay Esterline

2. What is an open number line?
An open number line is like a regular number line, but it doesn’t have any number labels.
You will see what I mean in just a minute! But first, let’s review some important math vocabulary…
It is a strategy you can use to keep track of adding numbers in ‘chunks’ that make sense to you (by place value, making a ten, or skip counting).
Addition Vocabulary:
Addend: a number you are adding to another number
Sum: the total, or the answer
Addends
Sum
= 5

3. =
Use what you know about place value to add in easy, “friendly” chunks!
10 + 2
+10
Hopper makes a jump for each chunk of the second addend! Label your jumps to help you keep track!
Can you think of another way Hopper could have made his jumps? +1 +1 34 32 33 34 22
When you total your jumps, the sum should equal your second addend.
= 12
Start your number line with your first addend.

4. Lily Pad Line Sheet 22 + 12 = 34 + 16 = 65 + 15 = 48 + 22 =
Name ______________________________________ Date ________________
Lily Pad Line Sheet =
Presentation = = =

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Credits
And SoundBible.com
Microsoft clip art