4.4 Translator

OBJECTIVES

Students gain practice with compound coditionals NOT, AND and OR compound by remixing a rocket launching project.

OBJECTIVES: By the end of this lesson, students will:

- gain experience using scratch extensions: Text to Speech
- gain experience using scratch extensions: Translate
- discuss useful apps that can help others

Demo

TEACHER RESOURCES:

Student Page

Wrap around slides

Slides

rubric

Standards

- CSTA 2-AP-13: Decompose problems and subproblems into parts to facilitate the design, implementation, and review of programs.

CSTA

Do Now (5 minutes)

1. Watch "Language Translation Device" (1:49)
2. Discuss:
  - How did the people react to the device?
  - When would you use a device like this?
  - Is there an app on your phone that could also translate?

TEACHER GUIDANCE:

You can see that the people did not understand and then they react to the translation. Surprise and excitement.
You could use this device when travelling to a country where you do not know the language.
Yes there are apps that do the same thing: Translate, iTranslate. We will make a translation app today.

Mini-Lesson (5-10 minutes)

Recap Answer block[ video 0.37 minutes] and then show the students the two extension blocks: Text to Speech and Translate. [ video 1.36 minutes]

Scratch Extensions, slides 9-19

Project (20-30 minutes)

Part 1:

Create a new project in scratch, play with the Translate and Text2Speech extensions. Students should know what each block does. See page1 of student handout.

Part 2:

Using starter project, finish building a English to Spanish translator. Page 2 of student handout.

Close-Out (5 minutes)

Discuss the following questions:

Do you see your translator program being used by someone? How useful would it be?
Do you think there are limitations to using software to translate language?
What other kind of program could you use the “Text to Speech” extension for?

Potential Responses

Yes, it could be useful.
Maybe, but it is a good start.
Text to Speech is useful for people who can not read. eg Blind people.

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