# Q1, W2: August 19-23 Pre-Algebra

Teacher Kristin Andreason Pre-Algebra 8 2 Unit One: Rational and Irrational Numbers
Standard(s) Taught

MAFS.8.NS.1.1:  Know that numbers that are not rational are called irrational.  Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually and convert a decimal expression which repeats eventually into a rational number.

MAFS.8.NS.1.2:  Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximate on a number line diagram, and estimate the value of expressions.

Learning Targets and Learning Criteria
• Students will be able to decide if a number is rational or irrational
• Students will learn how to convert decimals to fractions and fractions to decimals.
• Students will learn how to convert a repeating decimal to a fraction.
Classroom Activities

Monday/Tuesday:

• Students will fill in a Square Root and Cube Root Chart (p. 2,3 of ISN)
• Students will copy notes on Rational (p. 5) and Irrational (p 6) Numbers
• Students will do IXL D.5 on Rational and Irrational Numbers
• Students will do a Quizizz on Rational and Irrational Numbers

Wednesday:

• Students will get their Ready Math books
• We will go over pages 22-23
• We will watch a Khan Academy video on converting repeating decimals to fractions
• We will learn the short cut method with the “magic 9” and practice some examples

Thursday/Friday:

• Students will take the Pre-Algebra SMT
• When all are finished, we will review rational and irrational numbers and then do a Plickers
Assignments Due
• IXL D,5 is due by Friday, August 23.
• Students should complete the Pre-Algebra SMT by August 30.