8th Grade Science Guide

8.2: Physics 3 Dimensions & Progressions

Unit 1

● I can identify how waves can be used for communication.

to decode numbers and letters.

Activity: Sampling

Objective

Overview

Materials

● I can compare digital and analog media in terms of storage. ● I can evaluate whether digital signals are more reliable than analog signals when transmitting data. ● I can identify how waves

● Students will read the article and write a compare contrast paper on digital and analog

● Analog and digital

technology - What's the difference? ● Sample graphic organizer ● Website tutorial

signals using information from the article. A graphic organizer is completed frst.

can be used for communication.

Activity: Audio Examples of Different Bit Rates

Objective

Overview

Materials

● I can compare digital and analog media in terms of storage. ● I can evaluate whether digital signals are more reliable than analog signals when transmitting data.

● The purpose of this

● Shows different Kbps ● Bit rates explained ● Digital Audio Explained

activity is to show the limitations of digital information, that being that data will be lost in the conversion from analog. This will be accentuated by using different audio fles that have more or fewer samples. More samples will be a closer representation to the analog signal, fewer samples will have more data loss and sound worse.

Formative Assessment: SEEd Formative Assessment 8.2.6

8.2.6 Phenomena Assessment.

Objective

Overview

Materials