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Motor Math (4-3-1). Monday. 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.

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slide1

Motor Math (4-3-1)

Monday

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: ?

What is the GCF between and ?

Area =

81 in.2

slide2

EXIT 12E

EXIT RAMP

Which of the following inequality symbols, will make this number sentence true?

A. <

C. >

B. =

D. +

EXIT ONLY

slide3

Motor Math (4-3-2A)

Tuesday

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

slide4

EXIT 12E

EXIT RAMP

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

slide5

Motor Math (4-3-3A)

Wednesday

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?

6mm

2mm

3mm

9mm

4mm

12mm

Area =

81 in.2

slide6

EXIT 12E

EXIT RAMP

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

slide7

Motor Math (4-3-4A)

Friday

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 where and are the lengths of the two parallel bases, and is the height. What is the area of the trapezoid below?

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

slide8

EXIT 12E

EXIT RAMP

Evaluate

When 8

EXIT ONLY