Introduction to Snap the Gap & littleBits

Kickoff your Snap the Gap program! Girls meet mentors and explore STEM invention tools.

Session ROLES:

🐙 = Site Coordinator

🦉= Mentor


Note for Site Coordinators and Mentors

This guide provides a detailed outline for introducing girls to to Snap the Gap and littleBits, but feel free to improvise or put your own spin to things. If you have an idea for a challenge or prompt that will get girls excited, go for it! If something is not working well, change course and experiment another path forward.  If you do change things up, we would love to hear what has been successful for you!  

Get Social!

📷 We love to see invention in action! Take photos/videos of your session and tag us on social with the hashtag #snapthegap. *Please make sure you have sharing authorization from parents and your affiliated organization before posting.


Session Overview

This session provides a fun and structured way to introduce Snap the Gap. Girls and mentors will get to know each other, and then learn about the STEM tools available to them; littleBits and (previously They will start by exploring Bit Basics (e.g. color-coding, magnetic connections, the importance of order) and connect these concepts to basic science about the flow of energy through circuits. Once they’ve built their understanding of these core ideas, they will engage in short rounds of mini-challenges to explore simple input Bits, gain confidence, and spark their imagination.


Session Details




2 hours





Prerequisite Knowledge:

None (this session is designed as a first introduction to littleBits)



Bits + Accessories:

Snap the Gap STEM Kit


Mentors will need to bring a connected device (phone, tablet, or computer) to access instructional videos

Other Materials:

  • Sticker labels (found in site coordinator packet)

  • Markers, pens, or pencils

  • *Please have a few extra 9V batteries on hand



Parent Consent

Mentee Assent

Printable Flyer for Parents




  • Introduction to Snap the Gap

  • Introduction to littleBits


  • Girls and mentors pair off

  • Introduce (previously and pass out codes for girls to sign up

  • By the end of the session, girls will be able to:

    • Build a complete series circuit while demonstrating knowledge of how the Bits connect via magnets;

    • Identify and understand the functional grouping of the color-coded Bits: powers, inputs, and outputs;

    • Describe how current changes in a series circuit when a component is added or removed;

    • Demonstrate knowledge of the directional flow of energy through a circuit;

    • Understand why the order of Bits is important to establish polarity; and,

    • Make connections between Bits and real-world applications.


Set Up


  • Make sure all the supplies for this session are prepped and ready to go.

    • Each girl will need a littleBits kit and a code (some printouts may say - that’s ok! The code should still work at We suggest handing out the DIY codes as girls are leaving the session)

  • Invite parents to stay for the introduction of the program if they like.

  • We suggest handing out the kits during the CREATE phase, after the introduction

  • Girls will not be using the included paper templates in this session. We suggest they are kept in the box for next time.


  • Make sure to bring a charged connected device (phone, iPad, or computer) to access instructional videos during the session.


Check In & Pair Off

10 min


  • Check in girls and mentors

    • Make sure the parent consent forms have been signed

    • Verify if girls have completed the survey in advance. If not, there is time built in to this session for girls to take the survey.

  • Pair girls with mentors



15 min


🦉MENTORS: Before diving into the program, we want to get your mentee’s honest opinion on how she perceives STEM and STEM careers. Please follow the script we’ve written up for this first Logistics section. This way, we can ensure that the girls are not influenced by your overflowing STEM enthusiasm until after the survey ;).


  • Mentor Script: Hello, my name is _______. Nice to meet you! What is your name? We are excited that you are here for the Snap the Gap program.  Before we get started there are 2 tasks we will work through.


  • Mentor Script: First I will read the program description. When I am finished, let me know if you want to take part in this program. Ok?

    • Read Child Assent to your mentee [if you are mentoring more than 1 girls, read this individually to each girl].

      • Ask mentee to respond with yes or no. If YES, move on to the survey.

      • If NO, go to the site coordinator.


  • Mentor Script: Next we’d like you to complete a short online survey. I have pulled up the survey and you can complete it here. Take your time to answer the questions. These should be your honest opinions. There are no wrong answers! Let me know when you get to the last question of the survey and we will submit.


Get to Know Each Other

5 min


Take turns asking each other questions. Example prompts:

  • What do you like to do for fun?

  • What is your favorite subject in school? Why?

  • What is your favorite book or show? What do you like about it?

  • What type of music do you like to listen to?

  • What is the last thing you made that you are proud of? (could be a drawing, a story, a game with friends, a secret language, a dessert, a collage, etc..)

What is Snap the Gap?

10 min


Feel free to use this sample copy:

“Ask: Does anyone here know what STEM is?

STEM stands for science, technology, engineering and math. Unfortunately, there are fewer girls and women that show interest in these topics in school or pursue them as careers. This is too bad because girls can bring a very unique perspective to STEM and really make an impact on the future. You are the designers, creators, scientists, and technologists of tomorrow. You will have jobs that don’t even exist yet, and you will change the world! STEM is truly for everyone and we need more girls paving the path in these subjects. This is why we are so happy to have you participate in Snap the Gap!

Ask: Can you think of any jobs in STEM?

Here are some examples:

  • Zoologists study animals

  • Electronics engineers design and build the world around us - a female engineer, Ayah Bdeir, built the littleBits kit you get as part of this program

  • Software developers create your favorite app and video games

This program is designed for you to explore all sorts of STEM topics, discover what interests you, and learn to bring your ideas to life though invention.

The program has 3 components:

  1. Throughout the program, each of you will work with a mentor, either individually or in groups. The mentors are here to help answer any questions you may have and work with you during each session.

  2. Each of you will receive a Snap the Gap STEM Kit. This kit is made up of electronic building blocks called littleBits that you will use to invent with during the program. You will get to keep this kit when the program is done (in between sessions, we will leave them here though).

  3. Lastly, you get a 1-year subscription to (previously We will give you a code to access your free subscription when you leave today. On, you will find instructions for inventing with littleBits as well as all sorts of courses and challenges you can participate in to discover your STEM passion. It is very important that you sign up for (previously as you will use it in between sessions at home. You will need a parent or caretaker to help you sign up.”

If possible, show this video to the girls to get them excited about joining

Program Overview

This program is made up of about (10) sessions. In each session we will be inventing with littleBits and discussing your STEM interests with your mentors. We want you to walk away with confidence and ideas for what interests you in STEM.

We have some really fun projects for you coming up. Today will be an introduction to littleBits. In upcoming sessions, you will also build electronic robot arms, smart home devices, Rube Goldberg machines, arcade games and more! The program will end with a showcase where we will invite your parents and caregivers to come see what you’ve made!

Let’s dive into learning about littleBits!


Introduce littleBits

10 min


  • Distribute Kits to girls

  • Have girls create a label for their kits with their name


You may want to show this one-minute “Welcome to littleBits” video to provide context and get the girls excited:

Explain that littleBits are electronic building blocks that snap together to turn their ideas into inventions! Tell girls that they will get to play with the Bits, learn how they work, and get to know the science behind electronics in our everyday lives.

Ask girls to brainstorm ways in which we use and rely on electronics in our everyday lives. For example you might ask girls to identify:

  • Toys that use batteries;

  • gaming systems that have to be plugged in;

  • appliances that cook our food or clean our clothes; or

  • lights that help them see at night.

Invite girls to imagine and discuss the ways in which our lives would be significantly different without electronics. Make a connection by explaining to girls that they are going to use littleBits to experiment and investigate with circuits to better understand how electronics work. 



30 min


  • During the hands-on activities, float around the room and observe/help out where needed.

  • You will also monitor the time and announce when the group should come together to share.


  • Facilitate the hands-on activities with mentees.

  • As you work through the session, make sure to review all Bit diagrams to learn how Bits work and how they relate to the real world. You can also find information about each Bit in the Bit Index. Girls can use the Bit Index to spark their imagination for building with the Bits. These pages will be an important resource as the girls learn and grow with littleBits.

  • Complete as many of the 9 mini-challenges as you can in the allotted time. It’s ok if you don’t do them all!

Explore the Bits

Open the kits. Encourage girls to explore how the Bits connect. After a moment of exploration, ask girls to share what they have observed and learned about the Bits. For example, girls might notice:

  • The Bits are color-coded/different colors;

  • they snap together; and,

  • there are magnets on the ends.

Watch Intro to littleBits Video Playlist

  1. Inventing

  2. Bit Basics

  3. Bit Combinations

  4. Bit Signals

  5. Bit Components


Build a Series Circuit

Tell girls that they’re ready to make a functioning circuit with the Bits. 

Provide a few minutes for girls to explore their Bits independently. Ask girls to build a circuit that will light the long LED. Identify the green Bits as outputs: these are the “doers” of the circuit. 

Screenshot 2019-06-19 at 5.28.11 PM.png

When each girl/group has created a complete circuit, ask them to explain:

  • What role does the blue Bit play in the circuit, and how can you tell that it’s powered on?

    • Every circuit starts with power. It provides the electricity that makes your Bits spin, buzz, blink, and shine. When creating circuits, make sure you always have a blue power Bit that is connected to a battery.

  • What is the role of the green Bit? (The output; green Bits are the “doers” of the circuit) 

    • Green Bits do things like light up, make sound, and create movement!

  • Does the order of assembly matter?

  • How do you know that the circuit is working?

  • How could you stop it from working? (They could disassemble the Bits to break the connection, disconnect the battery/cable from the power Bit, or turn off the switch on the power Bit)

Explain to the girls that what they just built is called a series circuit. A series circuit is a pathway through which energy can flow in one direction. Tell girls that their circuit has three basic components. Ask girls to point to the:

  • power source (the battery)

  • conductive pathway (the battery cable and the blue power Bit)

  • output (the “doer” of the circuit that’s using the energy, in this case the RGB LED)

Review Power Bit and Long LED Bit Index Pages together and talk through the real world analogies:

Make a Connection

Tell the girls that when the parts of a circuit are connected correctly, this allows energy to flow from one Bit to the next. We see this energy as light on the long LED. When you remove one part or change the order of the Bits, you break the flow of energy. If the parts of a circuit are not connected correctly, then the energy doesn’t have a pathway and that’s when we see the light go out.



Ask the girls to look closely at their circuit. Have them “flip” the direction of the output Bit (so either the Bit is upside down or the name of the Bit is upside down in front of them) and describe what happens (the magnets push back). Remind girls that energy can only flow when the pathway is complete, and it can only flow in one direction—just like when they were holding hands in a circle. Ask girls to explain:

  • What happens when you flip the Bit? (You change the direction of the energy flow.)

  • Why do the magnets push back? (The poles no longer match and repel each other. This design by littleBits is meant to show us that our energy pathway is disrupted.)

  • How do you know that you are connecting Bits the right way?

Mini Challenge #1

Announce that it’s time for their first invention challenge! Using the Bits they’ve learned about so far, challenge girls to build a white reading light that you can use to secretly read books under the covers at night. How can you quickly turn it on and off so you don’t get caught?

  • Do the girls connect the Bits correctly to create an energy pathway?

  • Can girls name the basic components of their circuit?

  • Can they provide a simple solution for turning on and off the circuit?

Switch It Up

Ask girls to connect the slide dimmer Bit between the blue power Bit and the green LED. Have girls turn the power on and describe what happens.

Identify pink Bits as inputs: these are the controllers of the circuit. They control how the energy flows through the circuit pathway. Explain to the girls that this “dimmer” controls the flow of energy.

Give girls a few minutes to explore their new circuit. Ask them to explain:

  • What happens when you slide the dimmer?

  • What is happening to the flow of energy when you slide the dimmer? 

  • What happens when you move the pink slide dimmer to a position after the green LED Bit?

  • What is the role of the pink Bit? (The input; these are the controllers of the circuit. They control how the energy flows through the circuit pathway.)

Review Slide Dimmer Bit Index Page

Screenshot 2019-06-19 at 5.33.31 PM.png

Provide rationale for why everyday electronics would require switches to control the flow of energy (light dimmers, acceleration pedal in a car, etc). Reinforce that when a circuit switch is “on” the energy is allowed to flow through the complete pathway.


Improve your reading light circuit from Mini-Challenge 1. How could you change the brightness and use it as a dim nightlight when it’s time to go to sleep?

Hint: Use the slide dimmer to control the brightness of the LED.

  • Do girls correctly identify and connect the slide dimmer Bit?

  • Do girls arrange the Bits in the correct order?

  • Can girls explain why they connected the Bits in that order?

  • Can girls explain the function of the input Bit in controlling the flow of energy through the circuit?

As girls wrap up the challenge, explain that they will continue to build on their inventions by adding additional Bits into the mix!


Let’s change it up! How could you remix your circuit to create a fire engine siren that makes a noise and lights up? 

Hint: Think about how each input Bit controls the flow of energy. Which input would work best for a siren?

  • Do girls remix their circuit with the slide dimmer and buzzer Bits?

  • Can girls explain why the order of the Bits is important?

Review Buzzer Bit Index Page:

Screenshot 2019-06-19 at 5.34.28 PM.png

Motion & Modes

15 Min

Review Servo Bit Index Page:


Using the Bits they’ve learned about so far, challenge girls to build a musical metronome that can play a beat to help a musician keep time.

If girls are unfamiliar, explain that a metronome is a mechanical or electrical instrument that makes repeated clicking sounds at an adjustable pace. This video provides an example:

Hint: Make sure the servo is in SWING mode. Attach the mechanical arm and use the servo mount to press the servo into a mounting board. Place an object (for example, a water bottle or glass mug) in the pathway of the servo that plays a noise each time the arm strikes it.

  • Is the circuit assembled in a way that it keeps a steady beat?

Attach mechanical are to Servo Bit

Attach mechanical are to Servo Bit

Make sure Servo Bit is set to SWING mode (flip the tiny black switch)

Make sure Servo Bit is set to SWING mode (flip the tiny black switch)


Improve your musical metronome circuit from Mini-Challenge 4. How could you change the beat to be faster or slower to keep time with your favorite song?

Invite girls to play music or sing along to the beat.

Hint: Use the slide dimmer to control the speed of the swing. What happens when you switch the servo to TURN mode?

  • Do girls correctly identify and connect the slide dimmer Bit?

  • Do girls switch the servo to SWING mode?

  • Do girls arrange the Bits in the correct order?

  • Can girls explain why they connected the Bits in that order?

  • Can girls explain the function of the input Bit in controlling the flow of energy through the circuit?


Let’s change it up! Can you invent something with the servo to help clean your desk?

Note that there are many ways girls can approach this challenge using any of the Bits and accessories in their kit. 

  • Do girls use multiple input and output Bits on the same circuit?

  • Can girls explain why the order of the Bits is important?


Sensors & Logic

15 Min

Review Proximity Sensor Bit Index Page:

Screenshot 2019-06-20 at 1.14.51 PM.png


Tell girls to imagine that we’re an electronics company that is tasked with building the technology for a smart house. Our client has several ideas that they’d like us to prototype. Using the Bits they’ve learned about so far,  Challenge girls to create an intruder alarm that sounds when someone is close by.

Review Sound Trigger Bit Index Page:


The client also wants a lighting system that turns on someone makes noise. 

 Review Latch Bit Index Page:

Screenshot 2019-06-20 at 1.15.18 PM.png


Now, the client wants a little more control over the lighting system. Challenge the girls to Modify your automatic light to stay on or stay off.



5 Min


Wrap up the session by reviewing what girls have learned about how Bits work.

  • Have girls say a “Today I learned…” statement 

  • Conclude the discussion by asking girls how the circuits they made compare to circuits they’ve seen in the real world.

Give girls a preview of the next session:

  • Next week, we will learn about the littleBits Invention Cycle and build inventions that move!



5 Min


  • Make sure girls power off the Power Bit and disconnect the battery

  • Make sure girls have all the parts shown on the side of the box and put them away in the kit.



Log Your Session

Tell Us How It Went

Your feedback is essential to help us improve the program!



After the session, please fill out the Session Feedback Form

Get Social! 

📷 We love to see invention in action! Take photos/videos of your session and tag us on social with the hashtag #snapthegap. *Please make sure you have sharing authorization from parents and your affiliated organization before posting.