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7 th Grade Math Week of 9/22/14 Information from :

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1 7 th Grade Math Week of 9/22/14 Information from : http://net.cmsdnet.net/schools/math/sld005.htmhttp://net.cmsdnet.net/schools/math/sld005.htm http://www.mathsisfun.com/adding-decimals.html

2 Monday: Bell Work 1) –7.5t + 4 = -26 2) 22.1 = 4.2h + 3.1 * Solve the equations

3 2- Step Equation... use patterns and properties to explore, develop properties and describe real-world situations represented by the multiplication or division of integers? (7.NS.2a)

4 Word Wall Quiz Match and/or Fill in the blank for each term Words are only used one time. For the matching – write the letter beside the number

5 Fractions Fraction is divided into 2 parts Numerator Denominator The numerator (the part) is being compared to the denominator (the whole)

6 Comparing Fractions Example: which is bigger: 3/8 or 5/12 ? Convert each fraction to a decimal. We can use a calculator (3÷8 and 5÷12) Anyway, these are the answers I get: 3/8 = 0.375, and 5/12 = 0.4166... So 5/12 is bigger.

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9 HW Worksheet

10 Exit / Closure Why is important to change the numerator when you change the denominator?

11 Tuesday: Bell Work 1) a + 5.8 = 26.6 4.5 2) X + 2.4 = 15.4 2 Solve the equations Have homework on desk ready to check

12 Lesson... solve real-world problems involving the addition, subtraction, multiplication, and/or division of rational numbers? (7.NS.3)

13 Adding Fractions There are 3 Simple Steps to add fractions: Step 1: Make sure the bottom numbers (the denominators) are the same Step 2: Add the top numbers (the numerators), put the answer over the denominator Step 3: Simplify the fraction (if needed)

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20 Subtracting Decimals Follows the same pattern as adding except you subtract the numerators.

21 Exit / Closure In math, why is it important to have the same denominator when adding and subtracting decimals?

22 Wednesday: Bell Work Joey, Keith, and Eli have a combined height of 7 meters. If Joey is 2.31 meters tall and Eli is 2.6 meters tall, how tall is Keith? *Write and solve the equation. The variable cannot be in the answer.*

23 Lesson... solve real-world problems involving the addition, subtraction, multiplication, and/or division of rational numbers? (7.NS.3)

24 Adding / Subtracting Mixed Numbers

25 Subtracting Mixed Numbers

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27 Exit / Closure What is the purpose of converting mixed numbers to improper fractions?

28 Thursday: Bell Work 1) James works at an Indian sweet shop. He needs to fill boxes with 0.3 kilograms of coconut candy each. If he has 8 kilograms of coconut candy, how many boxes can he fill? Write and solve the equation. The variable cannot be in the answer.*

29 Lesson... solve real-world problems involving the addition, subtraction, multiplication, and/or division of rational numbers? (7.NS.3) N2K 3

30 Critical Thinking Activity Dan worked as a volunteer for a total of 103 hours in 21 days. He worked about the same number of hours each day. Which is the best estimate of the number of hours Dan worked as a volunteer each day? a) 3 b) 4 c) 5 d) 6

31 Constructed Response Amy is in charge or ordering new computers for her classroom. If each computer costs $1256.33 and Amy needs to order 5 computers, about how much money will Amy need? Amy says she will need about $5,000.00 for her new computers. She shows her work: $1256.33 rounds to $1000.00 and 1000.00 times 5 = $5,000.00 Did Amy round correctly for this situation? Defend you answers using words and examples.

32 Exit / Closure What is the importance of checking your work in math? Discuss with a partner

33 Friday: Bell Work 1) Maneesha purchased a box of pencils for $1.28 and gave the cashier $10.00. How much change should she get back? 2) If you buy an ebook for $29.62 and download 5 songs for $1.29 each, what is the total amount you have spent? *Write and solve a 2-step equation. ***notes for Agenda Benchmark – Monday 9/29 Ch 3 Test – Friday 10/3

34 Lesson... solve real-world problems involving the addition, subtraction, multiplication, and/or division of rational numbers? (7.NS.3)

35 Multiplying Fractions N x N= N DD D 6 X 8= 48 7 11 77 Multiply straight across

36 Dividing Decimals N ÷ N= N D D D *multiply the reciprocal N x D= N D N D 6 ÷ 8= 486 x 11 = 66 7 11 77 7 8 56

37 Multiplying / Dividing Mixed Numbers Change to mixed numbers to improper fractions and then multiply or divide.

38 Exit / Closure Tommy said that 4 + 2 x = -24 x is 14. Justify whether Tommy is incorrect or correct. ***Be ready to explain your answer to a partner.


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