Unit 9: 2-D Shapes, Perimeter, and Area

Target Objectives

Worthwhile Task Indicators

Example Tasks

• 3.GM.1.3 

• 3.GM.2.1

• 3.N.2.3 *

• 3.GM.2.8

• 3.GM.2.2

• 3.A.2.1 *

   

Shape Attributes

• Builds on their knowledge of 2-D shapes from 2nd grade (2.GM1.1. and 2.GM.1.2)

• Assesses their knowledge of angles and how to identify them within a shape.

• Allows students to problem solve within a riddle

• Requires students to create their own clues based on what they know about the shape.

Area and Perimeter

• Provides word problems that students must logically solve

• Connects multiple standards together

• Gives students the visual representation to help them solve the problems.

Shape Attributes:

http://www.insidemathematics.org/assets/common-core-math-tasks/which%20shape.pdf

• Students will require prior knowledge of lines, angles, and shapes in order to complete this task.

• Student examples are provided to address any misconceptions before they complete the task.

Exploring Area and Perimeter

http://hgse.balancedassessment.org/docs/e019.pdf

• This task would work well as an assessment or partner practice after teaching area and perimeter.