Yazmin Chavira MTP , ,
7th Grade Math : Unit #1 - Integers : Lesson #9

# Lines Around the World: Combining and Graphing Integers on a Number Line

Objective: SWBAT combine two or more integers by writing numerical expressions and plotting them on a number line
Standards: 7.NS.A.1 7.NS.A.1d MP1 MP2
Subject(s): Math
60 minutes
1 Do Now - 10 minutes

Students enter the class and find a “Do Now – Pop Quiz” on their desk that will include 5 integer combination questions. The questions will assess student knowledge of combining integers with opposite signs and integers with the same sign(i.e. 16 + (-5) and -6 + (-8)). The pop quiz will help me generate a list of students still struggling with integer addition. Students who have not mastered this concept will be encouraged to work in groups so that I can work with them more closely. There are two forms of the quiz, A and B. The letters are indicated at the top right hand corner of each quiz. I will have answers ready to check as students finish.

resources
2 Class Notes + Intro to Lesson - 10 minutes

Students are instructed to take out their homework from the previous night. They are also instructed to fill out their heading in their notes and to copy the aim off the power point.

After the homework has been reviewed, we fill out the Cornell Notes. I review the position of negative and positive integers in relation to zero for both horizontal and vertical lines. Then, we complete two sample problems together: one that asks students to draw the “arrow annotation” given an expression and another that gives the arrow notation and asks students to write an expression. If there is time, I also show students how to draw arrow notation for combining two negatives. Student questions are answered if there are many, or if there are only a few, they are encouraged to ask their questions during the game.

resources
Day 9 - C Notes - combining integers and illustrating on number line - 2013 - 8.29.docx
https://betterlesson.com/lesson/resource/2215350/day-9-c-notes-combining-integers-and-illustrating-on-number-line-2013-8-29-docx
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Connection to Prior Knowledge