# Q1W4 Pre-Algebra Teacher Carol Barnes Pre-Algebra 8 Q1W4 Exponents and Scientific Notation
Standard(s) Taught

MAFS.8.NS.1.2  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 (like Pi squared).

MAFS.8.EE.1.1 Know and apply the properties of integer exponents to generate equivalent numerical expressions. (review)

MAFS.8.EE.1.3 Use numbers expressed in the form of a single digit times an integer power of 10 to estimate very large or very small quantities and to express how many times as much one is than the other.

MAFS.8.EE.1.4  Perform operations with numbers expressed in scientific notation, including problems where both decimal and scientific notation are used.  Used scientific notation and choose units of appropriate size for measurements of very large or very small quantities.

Learning Targets and Learning Criteria
• Students will estimate approximations of square roots for imperfect squares.
• Students will locate rational and irrational numbers on a number line.
• Students will use the 6 exponent properties to solve problems with variables with exponents.
• Students will convert very large and very small numbers to scientific notation.
• Students will convert scientific notation to numbers.
• Students will add, subtract, multiply and divide numbers in scientific notation.
Classroom Activities

Wednesday:

Bellringer: Brain Teaser (Slide 72)

Some students will be finishing I-Ready Diagnostic

Whole Group: Locating Rational and Irrational numbers on a number line.  How to estimate an imperfect square by finding the the two perfect squares a number falls between.

Small Group:  Students will work in pairs to estimate square roots on a paper.

Independent:  Students will work IXL F.2, F.4, & F.5 to 70%

Friday:

Bellringer: Brain Teaser (Slide 73)

Whole Group: Interactive Student Notebook: Page 7 – Notes on how to write very large and very small numbers.  How to read a calculator with Scientific Notation.  Page 8– Scientific Notation Doodle Notes Booklet.  Page 9 – Adding and Subtracting Scientific Notation flip book.

Small Group:  Students will practice scientific notation on a worksheet with partners.

Independent:  Students will work IXL E.1, E.2, & E.4-E.6 to 70%

Assignments Due

IXL assignments due in class.