# Lesson 16: Binary Images with Artist

## Overview

This series of online lessons will have students learning to make images using on and off.

## Purpose

This will help reinforce the fact that computers can do a multitude of things with 0s and 1s.

## Objectives

### Students will be able to:

• Create pictures using unique combinations of on and off
• Identify repeated sequences and break long codes up into smaller chunks that can be looped
• Utilize loops and binary code to recreate provided images

## Preparation

• Play through the puzzles to find any potential problem areas for your class.
• Make sure every student has a journal.

## Vocabulary

• Binary - A way of representing information using only two options.

# Teaching Guide

## Warm Up (15)

To begin, it can be helpful to review the previous lesson, specifically different ways of using binary to indicate how to create an image on a grid. This stage will translate the unplugged activity into a simple, independent online lesson.

## Main Activity (30)

### Online Puzzles

Not all of these images are intuitive. Encourage students to click "Run" to see what happens, even if their code isn't "finished" yet.

## Wrap Up (15)

### Journaling

Having students write about what they learned, why it’s useful, and how they feel about it can help solidify any knowledge they obtained today and build a review sheet for them to look to in the future.

#### Journal Prompts:

• What was today’s lesson about?
• How did you feel during today’s lesson?
• Did you like drawing on the 8x8 grid or the 16x16 grid better? Why?
• Computers also store sounds using binary. Use your imagination to write down a possible way for that to work.
View on Code Studio

# Draw with Binary

### In this stage, we've provided you with a grid of "pixels" that you can walk through and make designs by turning on certain squares!

View on Code Studio

### Student Instructions

We've provided you with a grid of "pixels" that you can walk through and make designs by turning on only certain squares.

Use the blocks below to have the artist draw "01010101" in binary in the first row.

View on Code Studio

### Student Instructions

Here's a function that takes a binary string of 1's and 0's and instructs the artist to follow them from left to right, top to bottom.

The artist will fill-in the squares when it sees a 1 and ignore the square when it sees a 0.

Run this code to see how the artist uses binary to draw this pattern.

View on Code Studio

### Student Instructions

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### Student Instructions

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### Student Instructions

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### Student Instructions

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### Student Instructions

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### Student Instructions

• Prediction
• 10
• (click tabs to see student view)
View on Code Studio

### Student Instructions

 A) B) C) D)

Take a close look at the code below. Which image will it create after you click "Run"?

A

B

C

D

• Free Play
• 11
• (click tabs to see student view)
View on Code Studio

### Student Instructions

View on Code Studio

### Student Instructions

You can only use each binary value (0 or 1) once each in this puzzle. Try using nested loops to complete this drawing.

View on Code Studio

### Student Instructions

There are 256 bits represented on this grid - that means it's easy for a small change to cause big problems. Are you persistent enough to restore this logo back to normal?

## Standards Alignment

#### CSTA K-12 Computer Science Standards (2017)

AP - Algorithms & Programming
• 1B-AP-11 - Decompose (break down) problems into smaller, manageable subproblems to facilitate the program development process.
• 1B-AP-12 - Modify, remix or incorporate portions of an existing program into one's own work, to develop something new or add more advanced features.
• 1B-AP-15 - Test and debug (identify and fix errors) a program or algorithm to ensure it runs as intended.

## Cross-curricular Opportunities

This list represents opportunities in this lesson to support standards in other content areas.

#### Common Core English Language Arts Standards

L - Language
• 3.L.6 - Acquire and use accurately grade-appropriate conversational, general academic, and domain-specific words and phrases, including those that signal spatial and temporal relationships (e.g., After dinner that night we went looking for them).
SL - Speaking & Listening
• 3.SL.1 - Engage effectively in a range of collaborative discussions (one-on-one, in groups, and teacher-led) with diverse partners on grade 3 topics and texts, building on others’ ideas and expressing their own clearly.
• 3.SL.3 - Ask and answer questions about information from a speaker, offering appropriate elaboration and detail.
• 3.SL.6 - Speak in complete sentences when appropriate to task and situation in order to provide requested detail or clarification.

#### Common Core Math Standards

MP - Math Practices
• MP.1 - Make sense of problems and persevere in solving them
• MP.2 - Reason abstractly and quantitatively
• MP.4 - Model with mathematics
• MP.5 - Use appropriate tools strategically
• MP.6 - Attend to precision
• MP.7 - Look for and make use of structure
• MP.8 - Look for and express regularity in repeated reasoning

#### Next Generation Science Standards

ETS - Engineering in the Sciences
ETS1 - Engineering Design
• 3-5-ETS1-2 - Generate and compare multiple possible solutions to a problem based on how well each is likely to meet the criteria and constraints of the problem.