5 Minute Check. Write each fra.

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Presentation transcript:

5 Minute Check

Write each fra

How many fractions have a numerator that is over half the denominator?

4. Order the lengths of a housefly, a Green June beetle, and a fire ant from shortest to longest.

4. Order the lengths of a housefly, a Green June beetle, and a fire ant from shortest to longest.

Essential Question Mrs. Plum’s science class is growing plants under different conditions. The table shows the difference from the average for some students’ plants. Order the differences from least to greatest. How could we solve this?

Wednesday, Nov 18 Lesson 5.5.a Compare and Order Rational Numbers

Objective: To understand how to compare and order all rational numbers.

Compare and Order Rational Numbers Fill in with or = to make a true statement

Compare and Order Rational Numbers Fill in with or = to make a true statement < 0.8 Remember – On a number line the number to the left is always less than the number to the right.

Compare and Order Rational Numbers Fill in with or = to make a true statement

Compare and Order Rational Numbers Fill in with or = to make a true statement < -1.25

Compare and Order Rational Numbers The number line can be used to compare and order all rational numbers.

Compare and Order Rational Numbers Rule #1- A negative number is always less than any positive number. Hint – If both integers have a negative sign, determine the answer without the signs – then reverse it.

Compare and Order Rational Numbers Fill in with or = to make a true statement Do this on your own.

Compare and Order Rational Numbers Fill in with or = to make a true statement. -3 < 1 Since - 3 is negative and 1 is positive, - 3 is less.

Compare and Order Rational Numbers

Fill in with or = to make a true statement Do this on your own.

Compare and Order Rational Numbers Fill in with or = to make a true statement. -3 > - 4 Since 3 -4.

Compare and Order Rational Numbers Rule #2 – When comparing two fractions, use the “cross multiplication” method to convert the fractions to “like” denominators. Then just compare the numerators.

Compare and Order Rational Numbers

Rule #3 – When comparing a decimal and a fraction, one form must be converted to the other. Either convert the fraction to a decimal or vice versa. Hint – Most of the time it is easiest to convert the fraction to a decimal.

Compare and Order Rational Numbers Fill in with or = to make a true statement Do this on your own.

Compare and Order Rational Numbers

Fill in with or = to make a true statement Do this on your own.

Compare and Order Rational Numbers Fill in with or = to make a true statement > ≈ We can stop here, why? 15 )

Compare and Order Rational Numbers

8 8 When you order a set of numbers, make sure you use the original form of the number.

Compare and Order Rational Numbers Determine whether the following statement is always, sometimes or never true. Give examples to justify your answer. If x and y are both greater than zero and x > y, then -x < -y.

Compare and Order Rational Numbers Determine whether the following statement is always, sometimes or never true. Give examples to justify your answer. If x and y are both greater than zero and x > y, then -x < -y. Always, the greater the number is, the farther away from zero. Therefore it’s opposite will also be farther from zero.

Compare and Order Rational Numbers Explain why 0.33 is less than 0.33.

Compare and Order Rational Numbers Explain why 0.33 is less than The thousandths place in the first decimal is 0. The thousandths place in the second decimal is a 3, so <.333

Compare and Order Rational Numbers Explain why is greater than

Compare and Order Rational Numbers Explain why is greater than The thousandths place in the first decimal is 0. The thousandths place in the second decimal is a 3, so >

Essential Question Mrs. Plum’s science class is growing plants under different conditions. The table shows the difference from the average for some students’ plants. Order the differences from least to greatest. Do this on your own.

Essential Question

Compare and Order Rational Numbers Agenda Notes Homework – Skills Practice 5.5-Due Thursday, Nov 19 Show all work and circle all answers. When complete work on Accum Rev 5. When complete read and work on pages