Lesson 5.7
Open Number Lines
January 10
Embedded Files
Learning Target
Learning Target
I can use open number lines as a tool for solving number stories.
I can use open number lines as a tool for solving number stories.
Vocabulary
Vocabulary
Open number line - A blank number line on which children can mark points or numbers that are useful for solving problems. Children can use open number lines to record the steps of mental computation strategies. For example: I want to solve 56 + 28. I can start at 56 and jump up 4 ones to get to an easy number, 60. I still have 24 more to go. Next I can jump up two 10s, to 70 and then to 80. Now I just have four more 1s to go, so I hop 4 to 84. So 56 + 28 = 84.
Math Journal (Math Boxes)
Math Journal (Math Boxes)
Pages 117 & 118
Pages 117 & 118
Homework
Homework
Home Link 5.7 - Using Open Number Lines
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