Intro to SQL: Querying and managing data (Khan Academy)

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Learn how to use SQL to store, query, and manipulate data. SQL is a special-purpose programming language designed for managing data in a relational database, and is used by a huge number of apps and organizations.

Intro to HTML/CSS: Making webpages (Khan Academy)

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Learn how to use HTML and CSS to make webpages. HTML is the markup language that you surround content with, to tell browsers about headings, lists, tables, etc. CSS is the stylesheet language that you style the page with, to tell browsers to change the color, font, layout, and more.

Intro to JS: Drawing & Animation (Khan Academy)

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Learn how to use the JavaScript language and the ProcessingJS library to create fun drawings and animations.

Reverse engineering (Khan Academy)

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Videos exploring the way things work. (1) Household items What is inside an alarm clock radio? What is inside a coffee maker? What is inside a tap light? (2) Hair dryer What is inside a hair dryer? (1 of 2) What is inside a hair dryer? (2 of 2) Compare the hair dryer motor to […]

Lego robotics (Khan Academy)

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Introduction to the Lego NXT robotics platform (1) Introduction Anything is possible! DLab: Inspired by sumo robots Introduction to programming using lego NXT Warm up: police siren Warm up: ultrasonic vision Challenge: drum partner (2) Light guitar Demo: light guitar Data wires Math block Bonus points (3) Coin detector Demo: coin detector Construction Rotation sensor […]

Home-made robots (Khan Academy)

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Start your own robotics project with Spout, Spider, and Bit-zee! (1) All about Spout 3rd graders build robots at Santa Rita Elementary School SPDT switch Spout’s sliding SPDT switch Spout lights Spout motor Spout battery configuration and polarization Spout’s reversing circuit and final assembly Spout circuit Spin-off of “Rotary switched spout circuit” (2) Spout Bot […]

Electrostatics (Khan Academy)

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Electrostatics is the study of forces between charges, as described by Coulomb’s Law. We develop the concept of an electric field surrounding charges. We work through examples of the electric field near a line, and near a plane, and develop formal definitions of both *electric potential* and *voltage*. (1) Electric force and electric field Coulomb’s […]

Semiconductor devices (Khan Academy)

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Amplifiers (Khan Academy)

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Amplifiers make signals bigger. Amplification is often the most basic operation of an electronic circuit. There are many kinds of amplifier designs. We will describe the operational amplifier, the building block of most analog electronics. (1) Operational amplifier What is an operational amplifier? Non-inverting op-amp Feedback Inverting op-amp Virtual ground Virtual ground – examples Summing […]

Circuit analysis (Khan Academy)

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Circuit analysis is the process of finding all the currents and voltages in a network of connected components. We look at the basic elements used to build circuits, and find out what happens when elements are connected together into a circuit. (1) Circuit elements Ideal circuit elements Ideal sources Ideal elements and sources Real-world circuit […]