Monday Motor Math (4-3-1) Rational Numbers March 19, 2012 SPI 2.3 Use rational numbers and roots of perfect squares/cubes to solve contextual problems. SPI 2.2 Compare rational numbers using appropriate inequality symbols. SPI 2.4 Determine the approximate location of square/cube roots on a number line. A triangle has an area of 13 ft2. How big would a similar triangle be if you used a scale factor of 6? The area of a square playground is 900 meters. What is the length of each side? Which inequality symbol would make this number sentence true: 𝟑 𝟓𝟎 ___ 𝟏𝟒 𝟒 ? What is the GCF between 𝟒 𝟓 and 𝟒 𝟏𝟓 ? Area = 81 in.2

EXIT ONLY EXIT RAMP EXIT 12E − 𝟓 𝟒 _______ − 𝟒 𝟓 − 𝟓 𝟒 _______ − 𝟒 𝟓 Which of the following inequality symbols, will make this number sentence true? A. < C. > B. = D. + EXIT ONLY

Tuesday Motor Math (4-3-2A) Using Rational Numbers March 20, 2012 SPI 2.3 Use rational numbers and roots of perfect squares/cubes to solve contextual problems. SPI 2.5 Solve contextual problems that involve operations with integers. SPI 2.6 Express the ratio between 2 quantities as a %, & a % as a ratio… If you stacked a cube with a volume of 216 ft3 on a cube with a volume of 729 ft3, how high would they reach? There are five puppies in a litter. They weigh 2.4 pounds, 3.5 pounds, 2.7 pounds, 3.1 pounds, and 3.2 pounds. The heaviest puppy is adopted by a neighbor. How much do the remaining puppies weigh all together? Of the 95 counties in TN, 33 are in East TN. About what percent of counties are in East TN? Area = 81 in.2

EXIT ONLY EXIT RAMP EXIT 12E The temperature dropped 4° each day for 5 days. If the temperature dropped 2°F on the first day, what was the temperature 5 days later? EXIT ONLY

Wednesday Motor Math (4-3-3A) Proportions & Expressions March 21, 2012 SPI 1.1 Use proportional reasoning to solve mix/conc. problems. SPI 2.1 Simplify numerical expressions involving rational numbers. SPI 2.7 Use ratios and proportions to solve problems. The rectangular prisms are similar. What is the ratio of the volume of the smaller prism to the volume of the larger prism? What is the scale factor? A scientist has a 80 mL of a solution that is 5% salt by weight. She adds 20 mL of a solution that is 3% salt by weight. What percent salt is the resulting solution? 2mm 6mm 3mm 9mm 4mm 12mm Area = 81 in.2

EXIT ONLY EXIT RAMP EXIT 12E One hundred-forty seventh-graders are going on a field trip to the National Civil Rights Museum. The ratio of chaperones to students must be 1:10. How many chaperones are needed for the trip? EXIT ONLY

Friday Motor Math (4-3-4A) Expressions & Equations March 23, 2012 SPI 3.1 Evaluate algebraic expressions involving rational values for coefficients and/or variables. SPI 3.7 Translate between verbal and symbolic representations of real-world phenomena involving linear equations. The area of a trapezoid is given by the expression 𝟏 𝟐 𝒃 𝟏 + 𝒃 𝟐 𝒉, where 𝒃 𝟏 and 𝒃 𝟐 are the lengths of the two parallel bases, and 𝒉 is the height. What is the area of the trapezoid below? 𝟐 𝟏 𝟐 𝒊𝒏. The cost of a cab ride to the airport $4 and $1.20 for each mile. Write an expression to show the relationship between the total cost c and the number of miles m. Area = 81 in.2 𝟑 𝟏 𝟒 𝒊𝒏. 𝟒 𝟑 𝟖 𝒊𝒏.

EXIT ONLY EXIT RAMP EXIT 12E Evaluate (𝟑 𝒂 𝟐 + 𝟏 𝟐 𝒃)÷ 𝟏𝟔 When 𝒂=𝟔 𝒂𝒏𝒅 𝒃=−8 EXIT ONLY