Purpose: To teach User-defined functions. Students will learn the use of functions .

No. of Classes

Two or three classes (Teacher's decision)

Materials Required

Computer, Internet connection.

Curriculum Content

7) Advanced programming

7.13) Functions

7.13.2) User-Defined functions

Prior knowledge

Students should know about directions (Left, Right, forward and backward) and basic programming.

Exercises

Exercise:1

Create a function that sends the harvester down a square path to pick a single head of lettuce from the middle of each row.

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Exercise:2

Try writing your function again. Is it still helpful? How can you make it work for this puzzle?

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Exercise:3

Try to solve this puzzle by creating your own function.

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Exercise:4

Use everything that you've learned so far to solve this puzzle in 19 code blocks or less!

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Exercise:5

Solve this puzzle in 23 code blocks or less.

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Solutions

Link to view solution for exercise-1.

Link to view solution for exercise-2.

Link to view solution for exercise-3.

Link to view solution for exercise-4.

Link to view solution for exercise-5.

Teacher's Instruction

Teachers can help the Students complete these levels if they struggle.
Teachers should give their own creative activity to help children understand per-defined functions.
Teachers can explain the code.org 8th level video if the students are not able to understand either the concept of user-defined functions or the content of the video. (In code.org--> course E--> level-8.).