Vocabulary
- Algorithm
- A precise set of instructions made up of sequence, selection, and iteration (or loops) for behaviors to be carried out by a 123 Robot.
- Coder cards
- Physical cards that represent commands to be used in the Coder.
- Detect
- To identify the presence of something.
- Drive until object
- A Coder card that instructs the 123 Robot to drive forward until the Eye Sensor detects an object.
- Eye Sensor
- A type of sensor that detects if there is an object present, the color of the object, and the brightness of light.
- Iteration
- The repetition of behaviors in a project. Also known as loops.
- Object
- A material thing that can be seen and touched.
- Project
- A list of Coder cards sequenced together in order for the 123 Robot to execute behaviors.
- Selection
- A decision or question in a project.
- Sensor
- A device that helps your robot to understand the world around it.
- Sequence
- The order in which Coder cards are executed, one after another.
Encouraging Vocabulary Usage
General notes on encouraging vocabulary usage with young children:
- The goal of introducing Computer Science related vocabulary to young children is to have them begin to incorporate the words naturally into their conversations and explorations; not to simply memorize vocabulary.
- The more children hear these vocabulary words used in the context of activities, the more they will begin to use these words correctly on their own. Reinforce vocabulary throughout daily activities, like naming “objects” as you are working with math manipulatives, or “detecting” something out of place during clean up time.

Tips for Encouraging Vocabulary Usage
- Act out Vocabulary - Have students act out the vocabulary in this Unit, as part of a movement or “Brain Break.” Play a game to have students become the 123 Robot themselves. Students can walk around the room to “Drive until” they reach an object, “Detect” a particular item or color in the classroom, or point to their own “Eye Sensor.”
- Word of the Day - Choose a word to be the “Word of the Day” and set a goal for how many times the class can use it correctly in context during the day. Keep track of the usage on the board, and offer a reward for reaching or exceeding the goal to get students excited about it!