Unit 2, Lesson 5

Intro to Algorithm, Program, & Sequence

Students will connect their experience with the Scratch platform to the CS concepts of algorithm, program, and sequence. Students will practice these concepts with an unplugged activity to create and debug an algorithm for a house.

Agenda

Introduce CS Concepts
Unplugged: Algorithm for Drawing a House
Reflect on debugging strategies

Materials

Projector
Markers/crayons/pencils/colored pencils
Student Workbook p. 9-12
L5 Language Frames

Additional Resources

Unspotted Bugs story from Code.org
What's the Problem? Steps for Debugging Programs poster
Google Drawings or Sumo Paint to add a "plugged" component to draw a house

Lesson Plan

U2 L5: Algorithm, Program, Sequence

L5 Language Frames

U2 L5 Placemat 2.0.docx

Objectives

Computer Science Objectives

Students will create an algorithm that provides the steps to recreate an original shape drawing
Students will use logical reasoning to debug a peer’s algorithm for errors

Language Objectives

Students will be able to explain the different ways in which they have used computers.
Students will be able to use noun phrases with adjectives to describe the types of creative projects they have made with computers.
Students will be able to contribute to conversations and express ideas by asking and answering yes-no and wh- questions and responding using short phrases.
Students will be able to describe the Scratch projects that they would like to make.

Vocabulary

CS Terms

algorithm: A list of steps that you can follow to finish a task.
program: An algorithm that has been coded into something that can be run by a machine.
sequence: a set of instructions that follow one another in order
debugging: Finding and fixing errors in algorithms or programs.

Standards

Computer Science

1B-AP-10: Create programs that include sequences, events, loops, and conditionals
1B-AP-15: Test and debug a program or algorithm to ensure it runs as intended.

English Language Arts

CCSS.ELA-LITERACY.SL.4.1.D Review the key ideas expressed and explain their own ideas and understanding in light of the discussion.

English Language Development

C. Connecting and Condensing Ideas 6. Connecting ideas

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