# Measuring Area with Informal Units Unit Plan

5 x Lessons

This Mathematics unit addresses the concept of measuring, comparing and ordering area using informal units.

It consists of 5 lessons of approximately 60 minutes duration.

The sequence of lessons and suggested time frames should be regarded as a guide only; teachers should pace lessons in accordance with the individual learning needs of their class.

An assessment task for monitoring student understanding of the unit objectives is included and will require an additional lesson.

## Lessons

### Introduction to Area

A 60 minute lesson designed to introduce the concept of area and how it can be measured using informal units.

### Measuring Area

A 60 minute lesson in which students will explore the concept of area and how it can be measured using informal square units.

### Measuring Area of Shapes

A 60 minute lesson in which students will measure the area of plane shapes using informal square units.

### Area Investigation - Big, Loud Feet!

A 60 minute lesson in which students will apply knowledge and understanding of area to a real-world context.

### Revision of Area

A 60 minute lesson in which students will revise and consolidate the concept of area.

### Assessment - Measuring Area with Informal Units

A 30 minute assessment in which students will demonstrate their knowledge and understanding of area.

#### Common Core State Standards alignment

Grade 3 > Standards for Mathematical Practice > Measurement & Data > Geometric measurement: understand concepts of area and relate area to multiplication and to addition > CCSS.MATH.CONTENT.3.MD.C.5
Recognize area as an attribute of plane figures and understand concepts of area measurement.

Grade 3 > Standards for Mathematical Practice > Measurement & Data > Geometric measurement: understand concepts of area and relate area to multiplication and to addition > CCSS.MATH.CONTENT.3.MD.C.5 > CCSS.MATH.CONTENT.3.MD.C.5.A
A square with side length 1 unit, called "a unit square," is said to have "one square unit" of area, and can be used to measure area.

Grade 3 > Standards for Mathematical Practice > Measurement & Data > Geometric measurement: understand concepts of area and relate area to multiplication and to addition > CCSS.MATH.CONTENT.3.MD.C.5 > CCSS.MATH.CONTENT.3.MD.C.5.B
A plane figure which can be covered without gaps or overlaps by n unit squares is said to have an area of n square units.