# MA.K.M.1.2

Directly compare two objects that have an attribute which can be measured in common. Express the comparison using language to describe the difference.

### Clarifications

Clarification 1: To directly compare length, objects are placed next to each other with one end of each object lined up to determine which one is longer.

Clarification 2: Language to compare length includes short, shorter, long, longer, tall, taller, high or higher. Language to compare volume includes has more, has less, holds more, holds less, more full, less full, full, empty, takes up more space or takes up less space. Language to compare weight includes heavy, heavier, light, lighter, weighs more or weighs less.

General Information
Subject Area: Mathematics (B.E.S.T.)
Strand: Measurement
Status: State Board Approved

## Related Courses

This benchmark is part of these courses.
5012020: Grade Kindergarten Mathematics (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
7712015: Access Mathematics - Grade Kindergarten (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2022, 2022 and beyond (current))
5012005: Foundational Skills in Mathematics K-2 (Specifically in versions: 2019 - 2022, 2022 and beyond (current))

## Related Access Points

Alternate version of this benchmark for students with significant cognitive disabilities.
MA.K.M.1.AP.2: Directly compare two objects to determine which is longer/shorter or heavier/lighter.

## Related Resources

Vetted resources educators can use to teach the concepts and skills in this benchmark.

## Formative Assessments

Taller or Shorter:

Students compare their heights to that of a partner and describe the difference in their heights.

Type: Formative Assessment

Longer Than:

Students are asked to compare the lengths of their arms to items around the classroom.

Type: Formative Assessment

Compare Two Bags:

Students compare the weights of two sandwich bags, one containing cotton balls and one containing rice.

Type: Formative Assessment

Compare Lengths of Cubes:

Students compare the lengths of two trains of cubes and are assessed in order to determine if they understand conservation of length.

Type: Formative Assessment

Comparing Lengths:

Students are asked to compare the lengths of two pieces of string.

Type: Formative Assessment

## Lesson Plans

Moving on Up:

This MEA lesson is designed for a Kindergarten grade level. Students will be working in small groups to figure out what moving company is best for a family that is moving to a different state and they will learn about weight by differentiating between heavy items and lighter items. The students will be using criteria such as pricing, moving of vehicles, speed, safety and overall rating.

Type: Lesson Plan

Balancing Equations:

This is an engaging, hands-on lesson to help the students understand the meaning of the equal sign. The lesson is written using a pan/equal arm balance but may be done with just connecting cubes.

Type: Lesson Plan

Fishy Lengths - Which fish is right for my aquarium?:

Students explore lengths of fish to determine if fish are too long to fit in different sized aquariums. Students will use non-standard units and measuring tools to compare the lengths of fish and boxes without being able to directly hold the fish near the boxes.

Type: Lesson Plan

## STEM Lessons - Model Eliciting Activity

Moving on Up:

This MEA lesson is designed for a Kindergarten grade level. Students will be working in small groups to figure out what moving company is best for a family that is moving to a different state and they will learn about weight by differentiating between heavy items and lighter items. The students will be using criteria such as pricing, moving of vehicles, speed, safety and overall rating.

## MFAS Formative Assessments

Compare Lengths of Cubes:

Students compare the lengths of two trains of cubes and are assessed in order to determine if they understand conservation of length.

Compare Two Bags:

Students compare the weights of two sandwich bags, one containing cotton balls and one containing rice.

Comparing Lengths:

Students are asked to compare the lengths of two pieces of string.

Longer Than:

Students are asked to compare the lengths of their arms to items around the classroom.

Taller or Shorter:

Students compare their heights to that of a partner and describe the difference in their heights.

## Student Resources

Vetted resources students can use to learn the concepts and skills in this benchmark.

## Parent Resources

Vetted resources caregivers can use to help students learn the concepts and skills in this benchmark.