Unit 4

Multiplication and Area

Math

Unit Length and Description:

25 days

By Unit 4, students are ready to explore properties of operations and investigate area. Students measure the area of a shape by finding the total number of same-size units of area, e.g. tiles, required to cover the shape without gaps or overlaps. When that shape is a rectangle with whole number side lengths, it is easy to partition the rectangle into squares with equal areas and multiply.

Standards:

Enduring Understandings:

·         The space inside a rectangle or square can be measured in square units.

·         There are several strategies that we can use for finding area:

o   Multiply side lengths

o   Break apart and distribute

o   Find the area of smaller rectangles and add them together

o   Find the area of a large rectangle and subtract the area of a smaller rectangle.

·         It is important to know the best strategy to use for the problem.

Essential Questions:

·         What is the area?

·         Why is it important to know area in real life?

·         What strategies can I use to determine the area of an object?

·         How is area used in the world?