unit 4 review irrational numbers
TRANSCRIPT
HOUSEKEEPINGLast week you should have completed the lessons in the irrational numbers folder.
Today is a review session and the short summative will be scheduled in the system for tomorrow.
HOUSEKEEPINGHow many medals have you earned in IXL?
D.1 – Identify Rational and Irrational NumbersA.6 – Convert Between Repeating Decimals and Fractions (Algebra 1)F.15 – Estimate Positive and Negative Square Roots
Khan Academy Practice
Unit 4 Review:IRRATIONAL Numbers
Unit 4 –IRRATIONAL Numbers
Standard: Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions
Essential SkillsBy the end of the unit, you must be able to……• Demonstrate locating irrational numbers (using rational
approximations) on a number line • Apply the process of converting a decimal expansion which
repeats into a rational number • Apply knowledge of rational approximations to compare the size
of irrational numbers • Apply knowledge of rational approximations to estimate the
value of expressions
Question 1:
True or False:
All whole numbers are rational numbers.
Real Numbers
Integers
Whole Numbers
Natural Numbers
Rational Numbers
Integers
Whole Numbers
Natural Numbers
Irrational Numbers
Question 2:
True or False:
All non-terminating decimals are irrational numbers.
Question 3:Which of the following are NOT rational?
A. 1/3B. -2C. 0.4444444
Question 4:WITHOUT A CALCULATOR!!!!What two integers does fall in between?
A. 7 and 8B. 49 and 64C. 57 and 59D. 8 and 9
Perfect SquaresThe perfect squares are the squares of the whole numbers: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100 … The square root of a number, n, written.
Question 5:Which of the following numbers is the closest estimate for the expression +
A. 65B. 12C. 11D. 30
Question 6:Give an example of an irrational number. (Do NOT use )
Question 7:
Put these numbers in order from least to greatest, using the formats given.
, -5, 4.25
Question 8:
Give an example to show that this statement is false.
“All rational numbers are integers”
Question 9:Estimate the value of the expression:
Goal for today….
GoalReview the learning targets for the current unit
Agenda Review Standard Practice!
What should you do now? Questions????? Review each lessonPractice the IXL skills