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

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 2 + 3 = 5

22 + 12 = 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. 10 + 1 + 1 = 12 Start your number line with your first addend.

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

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