Classroom Resource

Comparing Equations | Rise and Shine: Math Time

Subject Area

Mathematics

Grade(s)

2

Overview

2020 Arkansas Teacher of the Year, Joel Lookadoo, shows students ways to better understand math. In this episode, Joel teaches students to compare equations by using number lines and tens sticks. He encourages students to visually represent the equations to have a better understanding of how the equations compare. Accompanying this video is a worksheet that provides students the opportunity to practice comparing equations.

Mathematics (2019) Grade(s): 2

MA19.2.10

Fluently add and subtract within 100, using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Unpacked Content

UP:MA19.2.10

Vocabulary

  • Properties of operations

Knowledge

Students know:
  • strategies and methods for symbolically (numerically) recording strategies for fluently solving addition and subtraction problems.

Skills

Students are able to:
  • record strategies for solving addition and subtraction problems.
  • communicate the relationship between models and symbolic (numeric) representations of solutions to addition and subtraction problems.

Understanding

Students understand that:
  • models/strategies can be used to justify their answers.
Mathematics (2019) Grade(s): 2

MA19.2.11

Use a variety of strategies to add up to four two-digit numbers.

Unpacked Content

UP:MA19.2.11

Vocabulary

  • Properties of operations

Knowledge

Students know:
  • to use place value strategies to add up tp four 2-digit numbers and justify their thinking.

Skills

Students are able to:
  • strategically choose and then record methods for efficiently and accurately solving addition problems with multiple addends.

Understanding

Students understand that:
  • choosing efficient strategies for finding sums of multiple addends depends on the numbers in the problem.
Mathematics (2019) Grade(s): 2

MA19.2.14

Explain why addition and subtraction strategies work, using place value and the properties of operations.

Unpacked Content

UP:MA19.2.14

Vocabulary

  • Properties of operations

Knowledge

Students know:
  • strategies for finding sums and differences.
  • physical (manipulative) models and pictorial models (place value blocks, lines and dots, bundles and sticks, etc.) for representing numbers using place value concepts.

Skills

Students are able to:
  • use logical reasoning, place value concepts and vocabulary, and properties of numbers and operations to justify strategies for finding sums and differences.

Understanding

Students understand that:
  • relationships between models of addition and subtraction problems and symbolic recordings of those models can be used to justify solutions and strategies.
Link to Resource
https://aptv.pbslearningmedia.org/resource/comparing-equations-video/rise-and-s…

CR Resource Type

Audio/Video

Resource Provider

PBS
Accessibility
License

License Type

CUSTOM

Custom License Type (URL)

https://aptv.pbslearningmedia.org/help/terms-of-use/

Approved Date

ALSDE LOGO

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