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Vertical Dot Addition

Learning Context

Purpose: To assess and instruct students’ ability to apply and communicate the basic addition skills and strategies to write and solve vertical addition problems.

Goals:

  • Correctly write the numbers of the addition sentence from the dot cards.
  • Correctly place the numbers, + sign, and line representing the equals sign in the vertical addition format.
  • Communicate mathematically.
  • Become proficient with the skills of mathematics.

Enduring Understanding:

  • There is more than one way to write an addition sentence- both vertically and horizontally.
  • Pictures and/or dots are ways that will help us count numbers and add them together to form addition sentences and find their sums.

Essential Question:

  • Why is it important to be able to know how to write and solve both horizontal and vertical addition problems?

Guiding Questions:

  • Where does the + sign go in relation to the numbers (addends) in the vertical addition sentence?
  • Where does the line representing the equal sign go in relation to the numbers (addends) in the vertical addition sentence?
  • Does it matter if I switch the order of the numbers in the vertical addition sentences?
  • How do I read this vertical addition sentence?

The objectives to be achieved are as follows:

1.0 The learners will be able to write vertical addition sentences.
2.0 The learners will be able to find the sums of vertical addition sentences.

Grade Level and Ability: The students are instructed on a first grade level, which is where all students stand academically. There are 10 boys and 10 girls. While there are no students classified as having a learning disability in this class, there are 5 students receiving remedial mathematics services.

Overview of What Students Need to Know and Be Able to Do:
In order for students to successfully complete the objectives of this learning experience, students need to:

  • Recognize and write a + sign in the correct place
  • Recognize and write the line representing the equal sign in the correct place
  • Find the sums of an addition sentence

The Final Product of this Learning Experience Requires Students To:

  • Follow oral directions
  • Count the number of dots on the dot card and transfer that to the written number
  • Write numbers 1-10
  • Write vertical addition sentences
  • Find the sums of the vertical addition sentences (to 10)

Classroom Layout

Classroom Rules/Classroom Management
The classroom rules hang in the classroom, visible to all students. There is a corresponding picture with each rule which acts as a reinforcer of what is expected of them. Students are reminded of classroom rules before the beginning of the lesson.

Partnership & Material Procedures
If students finish early, they are given the opportunity to work in pairs using mini chalkboards, erasers, and chalk. They are expected to follow the classroom procedures for the use of materials and for working with partners.


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Updated: February 28, 2008
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