advertisement

Margaret Matchett 7th Grade Math (on level) Week 8 Multiplication and Division of Fractions Warm-up – Day 1 How many dollars do you have if you have 20 quarters? Write a numeric expression that shows the value of 20 quarters in dollars: How many dollars do you have if you have 30 dimes? Write a numeric expression that shows the value of 30 dimes in dollars: 28 April 2009 Margaret Matchett 7th Grade Math (on level) Week 8 Multiplication and Division of Fractions 28 April 2009 Day 1 – Transparency 1 1 2 + 3 4 1 5 6 + 7 8 1 9 10 + 11 12 1 13 14 15 + 16 17 1 =5 18 19 20 Margaret Matchett 7th Grade Math (on level) Week 8 Multiplication and Division of Fractions Day 1 - Transparency 1 1 28 April 2009 Margaret Matchett 7th Grade Math (on level) Week 8 Multiplication and Division of Fractions 28 April 2009 Transparency – Day 1 1) 2) 3) 4) 5) 6) 7) 8) 9) IN CLASS/HOMEWORK WORKSHEET – TBD, but the student must: o o o o o Identify factors and products in an equation Model fraction multiplication Practice fraction with integer multiplication Practice fraction with fraction multiplication 2 – 3 fraction story problems Margaret Matchett 7th Grade Math (on level) Week 8 Multiplication and Division of Fractions 28 April 2009 VOCABULARY – DAY 1 Definition: In my own words/characteristics: Factors Example or List: Non-Example: Definition: In my own words/characteristics: Product Example or List: Non-Example: Margaret Matchett 7th Grade Math (on level) Week 8 Multiplication and Division of Fractions 28 April 2009 Warm Up – Day 2 Did you know that of Americans over age 18 do not understand fractions? (That is supposed to be a joke – why does that statement not make sense?) So, here is the REAL warm-up: My chocolate chip cookie recipe calls for recipe makes cups of semi-sweet chocolate chips. This dozen cookies. 1) If I want to make 3 batches of cookies, how many cups of chocolate chips will I need? 2) If I make 3 batches of cookies, how many cookies will I have? 3) If I have 5 classes with 20 students in each class, will I have made enough cookies for every student to have one? Margaret Matchett 7th Grade Math (on level) Week 8 Multiplication and Division of Fractions Warm up - Day 3 One quarter = $0.25. How much money do you have if you have 20 quarters? Write a numeric expression that shows the value of 20 quarters in dollars: One dime = $0.10. How many dollars do you have if you have 30 dimes? Write a numeric expression that shows the value of 30 dimes in dollars: 28 April 2009 Margaret Matchett 7th Grade Math (on level) Week 8 Multiplication and Division of Fractions 28 April 2009 Day 3 - Transparency × 0.4 × = 0.7 = 0.28 To multiply decimals: Multiply the numbers as if there were no decimal: Count the number of places to the right of the decimal in the first number: 0.4 => 1 place Count the number of places to the right of the decimal in the second number: 0.7 => 1 place Add the two counts: 1+1=2 Move the decimal place the total count from the right to the left: 28 = 28.0 => .280 = 0.280 = 0.28 Practice: × = Margaret Matchett 7th Grade Math (on level) Week 8 Multiplication and Division of Fractions 28 April 2009 Transparency – Day 3 – Mulitplication with decimals practice 1) 0.65 4 2) 1.25 × 2.45 5) × 4) × -0.65 4 3) -1.25 × 2.45 6) × -0.65 -4 -1.25 × -2.45 In Class worksheet – TBD – But must include the following: Model decimal multiplication Practice decimal with integer multiplication Practice decimal with decimal multiplication 2 – 3 story/TAKS problems Margaret Matchett 7th Grade Math (on level) Week 8 Multiplication and Division of Fractions 28 April 2009 Warm up - Day 3 You have some change in your pocket – 2 quarters, 1 dime, 1 nickel, and 4 pennies. How many pennies or cents is this equivalent to? How about 3 quarters, 2 dimes, 1 nickel, 11 pennies – show your work -- Worksheet Day 3 - TBD Convert from fractions to decimals to percents Convert from percents to decimals Convert from percents to fractions Order fractions, percents and decimals from least to greatest, greatest to least 2 – 3 story problems Margaret Matchett 7th Grade Math (on level) Week 8 Multiplication and Division of Fractions 28 April 2009 VOCABULARY – DAY 3 Definition: In my own words/characteristics: Percent Example or List: Non-Example: In my own words/characteristics: Definition: % Example or List: Non-Example: Margaret Matchett 7th Grade Math (on level) Week 8 Multiplication and Division of Fractions DAYS 4 & 5 – PROJECT PACKETS Music in 4-4 time Fractions in everyday life Recipe packet Quilt square designer fractions packet How much do I make salary packet Math Jeopardy packet 28 April 2009