Decoding Digital Logic - Mechatronics


Students Will Know & Be Able To Do: Explain the difference between AND, OR, NOT logic gates. Read and fill out a Truth Table. Convert a Logical Expression in to Gate Diagrams. Convert a Logical Expression in to a Truth Table.


Introduction: This lesson is designed to teach students about Digital Logic.  AND, OR, INV, XOR, NAND, NOR.  This lesson includes lecture and hands on activities to practice reading logical equations, mapping logic gate functions, and reading and writing truth tables. Then building circuits...

Objective: Students will be able to explain the difference between AND, OR, NOT logic gates. They will be able to read and fill out a Truth Table.  They will be able to convert a Logical Expression in to Gate Diagrams and convert a Logical Expression in to a Truth Table.  

Prior Knowledge: Students should understand Binary (base 2) number system. They should know how to count in Binary.   How to convert from Decimal 2 Binary.  How to convert from Binary 2 Decimal.  They should know how to Add and Multiply in Binary.

How I Teach This: I start by giving my students an Entry Ticket where they can spend 5-6 min looking at a site to give them an introduction to... 

Then I start the slide presentation, where I work through a lecture (15-30 min)...

and then I work a few Modeled or Guided Instruction...

Then I point them to a Quiz...

Good Luck, Have Fun.

Lesson Material and Sources: All my material here is Open Source and distributed with a Creative Commons License CC -by -nc -sa -3.0. (Note: Link to open source page) I have included all the presentations as PPT and PDF at the end of each activity, but if you click on the links in the Lesson Activities, I link you to my source, where you will get access to the very latest version of my presentations and other collateral. I'm always making edits and improvements.  So use this material, edit this material, make new material. If you have any Questions or Feedback, please reach out.  I'm happy to help.

Standards Alignments: CCSS: LS 11-12.1, LS 11-12.2; RSIT 11-12.7; RLST 11-12.4, 11-12.7, 11-12.10; WS 11-12.2, 11-12.4, 11-12.6;  WHSST 11-12.2, 11-12.5, 11-12.6; A-CED 1, 2, 3, 4 NGSS: SEP 1, 2, 3, 4, 5, 6, 7, 8; PS 2.A, 3.A, 3.B, 3.C, 3.D, 4.C; ETS 1.A, 1.B, 1.C; CC 2, 3, 4, 6

Lesson Times

1-2 class periods
90+ Minutes

Industries / Subjects / Grades

Industries / Pathways
  • Engineering & Architecture Engineering & Architecture
    • Engineering Technology
K-12 Subjects
  • Mathematics
    • Measurement & Data
  • Technology Education
Grade Levels
  • 10
  • 11
  • 12

Standards and Objectives


Next Generation Science Standards (2)
California's 2013 CTE Standards (1)

Related Instructional Objectives (SWBAT...)

  • distinguish between AND, OR, NAND, NOR and XOR gates
  • build a simple digital circuit using TTL Logic chips using online circuit simulators like

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