VEX 123 - Number Line - Unit Overview

Grades

K+ (Ages 4+)

Time

40 minutes per lab

Unit Essential Question(s)

How can we use tools to help us solve addition equations?
How can we use objects to represent and solve addition equations?

Unit Understandings

The following concepts will be covered throughout this Unit:

How to follow an algorithm (set of step-by-step instructions) to move the 123 Robot on the number line, in order to solve an addition equation.
How to represent and solve problems involving addition.
That one touch of the button corresponds to one block moved by the 123 Robot.

Lab Summary

Click on the following tabs for a summary of what the students will do and learn in each lab.

Lab 1 - Adding with the 123 Robot

Students will practice using the 123 Robot and a number line as tools to help solve addition equations.

Lab 2 - Number Sense

Students will learn additional strategies for solving addition equations. They will use the 123 Robot, number line, and manipulatives as tools to help solve addition equations

Unit Standards

Unit Standards will be addressed in every Lab within the Unit.

Computer Science Teachers Association (CSTA)

CSTA 1A-AP-08: Model daily processes by creating and following algorithms (sets of step-by-step instructions) to complete tasks.

How Standard is Achieved: Throughout both Lab 1 and Lab 2, students will follow an algorithm to use the 123 Robot. The steps of the algorithm are pushing the 123 Robot to wake it, touching the buttons to code it, and shaking it to erase. Students will shake the robot to erase when they are finished and want to start over again.

Common Core Standard (CCSS)

CCSS.MATH.CONTENT.1.OA.C.5: Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).

How Standard is Achieved: In Lab 1, students will be able to solve an addition problem by engaging in the “counting on spaces” strategy. Students will make the connection that one press on the robot correlates to one countable movement on the number line. They will explore how addition is exemplified by ascending on the number line. In Play Part 1, students will solve an addition problem using a number line as a whole class. In Play Part 2, students will use a number line to solve differing addition problems in small groups. In Lab 2, students will continue with the using the "counting on spaces" strategy to solve addition equations, while incorporating manipulatives to count out the numbers and check their answers.

< Return to Labs Next >