# ALEX Resources

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ALEX Classroom Resources
Subject: Mathematics (3)
Title: Area of a Parallelogram StudyJam
URL: https://studyjams.scholastic.com/studyjams/jams/math/measurement/area-parallelogram.htm
Description:

In this interactive activity, students will be led through steps to calculate the area of a parallelogram. There are teaching activities as well as practice activities available.  A handout that reviews the steps taught during the interactive is available to be printed. After utilizing this resource, the students can complete the short quiz to assess their understanding.

Subject: Mathematics (3)
Title: Grade 3 Mathematics Module 4, Topic B: Concepts of Area Measurement
Description:

In Module 4, Topic B, students progress from using square tile manipulatives to drawing their own area models.  Anticipating the final structure of an array, they complete rows and columns in figures such as the example shown at the right.  Students connect their extensive work with rectangular arrays and multiplication to eventually discover the area formula for a rectangle, which is formally introduced in Grade 4 (3.MD.7a).

Subject: Mathematics (3)
Title: Grade 3 Mathematics Module 4, Topic C: Arithmetic Properties Using Area Models
Description:

In Module 4, Topic C, students manipulate rectangular arrays to concretely demonstrate the arithmetic properties in anticipation of the following lessons. They do this by cutting rectangular grids and rearranging the parts into new wholes using the properties to validate that area stays the same, despite the new dimensions. They apply tiling and multiplication skills to determine all whole number possibilities for the side lengths of rectangles given their areas (3.MD.7b).

Subject: Mathematics (3)
Title: Grade 3 Mathematics Module 4, Topic D: Applications of Area Using Side Lengths of Figures