th 7 Grade Math Week of 9/15/14 Monday: Bell Work • –25 = 7h + 3 • Solve the equations • TURN IN WORKBOOK PAGE 102!! 20. Factor What does this word mean to you? Examples… This word actually means….. a number that is multiplied by another number to get a product. Explain how you would use this word in math. 21. Equivalent What does this word mean to you? This word actually means….. having the same value. Examples… Explain how you would use this word in math. 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) Properties foldable 1 piece of paper needed!! Foldable Cut this section off Foldable Fold in 1/2 Foldable Cut 3 lines to make 4 flaps Foldable Commutative Identity Associative Distributive Identity Property Commutative Distributive Associative HW Worksheet Identify the property being shown Exit / Closure • How do inverse operations have an impact upon equations? Tuesday: Bell Work 1) a + 5 = 8 -4 Solve the equations TURN IN HOMEWORK! 22. Inequality What does this word mean to you? This word actually means….. two values or quantities that are not equal. Examples… Explain how you would use this word in math. 26. Scientific Notation What does this word mean to you? Examples… This word actually means….. A method of writing very large or very small numbers by using powers of 10. Explain how you would use this word in math. 27. (Square) Roots What does this word mean to you? Examples… This word actually means….. A number that is multiplied by itself to form a product is called a square root of that product. Explain how you would use this word in math. Lesson • ... solve real-world problems involving the addition, subtraction, multiplication, and/or division of rational numbers? (7.NS.3) Adding Decimals Subtracting Decimals Exit / Closure In math, what is the definition of additive inverse. When do you see additive inverse being used? Wednesday: Bell Work 1) Danielle spent $35 on a magazine and some notepads. If the magazine cost $3 and each notepad cost $4 then how many notepads did she buy? *Write and solve the 2-step equation. The variable cannot be in the answer.* 23. Contextual What does this word mean to you? This word actually means….. using words to explain the meaning of a statement. Examples… Explain how you would use this word in math. 28. Perfect Square What does this word mean to you? This word actually means….. A square of a whole number. Examples… Explain how you would use this word in math. How to Multiply Decimals Just follow these steps: Multiply normally, ignoring the decimal points. Then put the decimal point in the answer - it will have as many decimal places as the two original numbers combined. Lesson • ... solve real-world problems involving the addition, subtraction, multiplication, and/or division of rational numbers? (7.NS.3) Exit / Closure • Why is it important to line the decimals up with adding or subtracting? How does this relate to your knowledge of place value? Thursday: Bell Work 1) Jamie had $20 to spend on seven raffle tickets. After buying them she had $6. How much did each raffle ticket cost? Write and solve the 2-step equation. The variable cannot be in the answer.* 2) Write 3/ 7 as a decimal number up to the thousandths place value. 24. Compare What does this word mean to you? Examples… This word actually means….. measure the similarities and/or differences between quantities. Explain how you would use this word in math. 29. Irrational What does this word mean to you? Examples… This word actually means….. A number that cannot be expressed as a ratio of two integers or as a repeating or terminating decimal. Explain how you would use this word in math. Lesson • ... solve real-world problems involving the addition, subtraction, multiplication, and/or division of rational numbers? (7.NS.3) • N2K 3 Critical Thinking Activity 5. Select the most accurate decimal form for the fraction 2/9. _ A) 0.2 B) 2.9 C) 0.2 D) 4.5 • WB p. 102 Constructed Response 5. Arianne was given the fraction 13/8 and was told to convert it into its decimal form. Her work is below: ___.1625___ 8 ) 13 -8 50 -48 20 -16 40 -40 0 She got the decimal 0.1625 for the decimal. Is she correct? Use estimation to justify your answer. Exit / Closure • What is the importance of checking your work in math? • Discuss with a partner Friday: Bell Work Ashley spent half of her weekly allowance playing mini-golf. To earn more money her parents let her wash the car for $9. What is her weekly allowance if she ended with $15? *Write and solve a 2-step equation. ***notes for Agenda Word Wall Vocabulary Quiz – Monday 9/22 Benchmark – Monday 9/29 Ch 3 Test – Friday 10/3 25. Convert What does this word mean to you? This word actually means….. to express a value in another form. Examples… Explain how you would use this word in math. 30. Perfect Cube What does this word mean to you? Examples… This word actually means….. A cube, which is a number that is multiplied three times by itself, of a whole number. Explain how you would use this word in math. Lesson • ... solve real-world problems involving the addition, subtraction, multiplication, and/or division of rational numbers? (7.NS.3) Dividing Decimals Dividing a Decimal Number by a Whole Number To divide a decimal number by a whole number: Use Division or Long Division (ignoring the decimal point) Then put the decimal point in the same spot as the dividend (the number being divided) Dividing by a Decimal Number But what if we want to divide by a Decimal Number? The trick is to change the number we are dividing by to a whole number first, by shifting the decimal point of both numbers to the right: Now we are dividing by a whole number, and can continue as normal. It is safe to do this if we remember to shift the decimal point of both numbers the same number of places. 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.