## Mr. Paul Schwab

Assistant Principal

W.J. Gurganus Elementary

## math

__5.NBT.7-__Students are expected to be able to ...-add, subtract, multiply and divide decimals up to the thousandths place.

-students must be able to use models or drawings to explain my work.

__Strategies:__Area model, Number Line model, distributive method, CRA (Concrete, Representative, Abstract)

**Example of concrete-**using base ten blocks.

**Example of Representative-**drawing a picture to represent the equation or expression.

**Example of Abstract-**"traditional" way of solving problems (.2 x .5 = .10)

**Through Common Core students are asked to understand the**

__Teacher notes:__**why**problems work and

**how**the solutions make sense. Emphasis is not placed on solving the "traditional" way using the abstract equation format, but rather through different strategies to ensure students can understand how to solve any problem when varying from the "cookie cutter" format.

**VOCABULARY:**parentheses, brackets, braces, expressions, numerical, evaluate, PEMDAS