Unit 2 – Assessment
Standard
8.NS.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 expansion, which repeats eventually into a rational number.
8.NS.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 (e.g., π2).
For example, by truncating the decimal expansion of, show that is between 1 and
2, then between 1.4 and 1.5, and explain how to continue on to get better
approximations.
8.EE.1. Know and apply the
properties of integer exponents to generate equivalent numerical expressions.
8.EE.2. Use square root and cube root symbols to represent
solutions to equations of the form x2 = p and x3 =
p, where p is a positive rational number. Evaluate square
roots of small perfect squares and cube roots of small perfect cubes. Know that
is irrational.
8.EE.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. For example,
estimate the population of the United States as 3 × 108 and the
population of the world as 7 × 109, and determine that the world
population is more than 20 times larger.
8.EE.4. Perform
operations with numbers expressed in scientific notation, including problems
where both decimal and scientific notation are used. Use scientific notation
and choose units of appropriate size for measurements of very large or very
small quantities (e.g., use millimeters per year for seafloor spreading).
Interpret scientific notation that has been generated by technology.
Whole Group – 30 min
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Review Agenda
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Review for Unit 2 Assessment
Independent – 90 min
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Unit 2 Assessment on Engradela – Click Here
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