# ALEX Learning Activity

## Solving Real World Measurement Problems

A Learning Activity is a strategy a teacher chooses to actively engage students in learning a concept or skill using a digital tool/resource.

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This learning activity provided by:
 Author: Jennifer Towles System: College/University School: University of Montevallo
General Activity Information
 Activity ID: 2663 Title: Solving Real World Measurement Problems Digital Tool/Resource: Google Slides Presentation: Elaborate: Real World Measurement Problems Web Address – URL: https://docs.google.com/presentation/d/1dfoew-zbM_8Znj94CqhCyktixhALW7LEzw-P0xrAt5A/edit?usp=sharing Overview: In this elaborate activity, students will independently solve metric measurement word problems involving length. The students will combine the same length (10 cm.) multiple times. Students will use strategies based on place value and the properties of operation to add within 1,000. The students will use drawings or equations to explain their strategy.This activity was created as a result of the ALEX Resource Development Summit.
Associated Standards and Objectives
Content Standard(s):
 Mathematics MA2019 (2019) Grade: 2 12. Add and subtract within 1000 using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. a. Explain that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds. Unpacked Content Evidence Of Student Attainment:Students: add and subtract within 1000. explain their reasoning using concrete models or drawings, or using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction. relate the strategy used to a written method (symbolic and numeric recording of the steps used).Teacher Vocabulary:Compose Decompose Knowledge:Students know: how to count to 1,000. how to identify hundreds, tens, and ones. how to compose numbers. how to decompose two digit numbers. how to record strategies for solving addition and subtraction problems. Skills:Students are able to: add and subtract within 1000. model addition problems using visual models. record strategies for solving addition problems. communicate the relationship between models and symbolic (numeric) representations.Understanding:Students understand that: relationships between models of addition/subtraction problems and written strategies of those models can be used to justify solutions.Diverse Learning Needs: Essential Skills:Learning Objectives: M.2.12.1: Define regrouping, total, sum, difference and solve. M.2.12.2: Add and subtract two two-digit numbers with and without regrouping. M.2.12.3: Determine the value of the number in the ones, tens, hundreds and thousands place using concrete models or drawings and strategies based on place value. M.2.12.4: Match the number in the ones, tens, hundreds and thousands position to a pictorial representation or manipulative of the value. M.2.12.5: Model written method for recording horizontal and vertical addition and subtraction problems. M.2.12.6: Represent two- and three-digit numbers with multiple models. Examples: models—base ten blocks, number lines, linking cubes, straw bundles. M.2.12.7: Recall single-digit addition and subtraction facts. M.2.12.8: Add and subtract within 20, e.g., by using objects or drawings to represent the problem. Prior Knowledge Skills:Notice same/different and some/all. Recognize numerals from 1-50. Add one to a set of objects (up to 10 objects). Given small groups of objects, create larger groups by combining the small groups. Understand ten and 1 (ten 1's =10). Put together two small groups of objects to create a larger group. Subtract one from a set of objects (up to 10 objects). Given a group of objects (20 or less), divide the group into smaller groups in various ways. Take away objects from a large group to create two smaller groups. Understand number words. Establish one-to-one correspondence between numbers and objects when given a picture a drawing or objects. Rote count to 10. Understand amount words, such as more, less, and another. Begin to understand that parts of an object can make a whole. Alabama Alternate Achievement Standards AAS Standard: M.AAS.2.10 Using vocalization, sign language, augmentative communication, or assistive technology, identify the meaning of the + sign (add, plus, put together) and the sign (subtract, take away, take from) and the = sign (equal, the same as); compose and decompose numbers up to 20 using objects, pictures, drawings, or numbers. Mathematics MA2019 (2019) Grade: 2 21. Use addition and subtraction within 100 to solve word problems involving same units of length, representing the problem with drawings (such as drawings of rulers) and/or equations with a symbol for the unknown number. Unpacked Content Evidence Of Student Attainment:Students: use concrete models and/or pictures to make sense of a word problem. write an equation with a symbol for the unknown in the problem. explain verbally how the problem was solved.Teacher Vocabulary:Units of length Drawings Equations SymbolKnowledge:Students know: Students know strategies for solving addition and subtraction word problems involving length. Skills:Students are able to: represent quantities and operations physically, pictorially, or symbolically. strategically use a variety of representations to solve problems with all addition and subtraction contexts. use symbols to represent unknown quantities in equations.Understanding:Students understand that: that they can apply the concept of length to solve addition and subtraction word problems for numbers within 100. Diverse Learning Needs: Essential Skills:Learning Objectives: M.2.21.1: Solve one-step addition and subtraction word problems with an unknown by using drawings and equations with a symbol for the unknown number to represent the problem. Examples: question mark, blank, box, or letter. M.2.21.2: Demonstrate the understanding of terms in addition and subtraction word problems involving length. Examples: adding to, taking from, putting together, taking apart, sum, difference, all together, how many more, how many are left, in all, inches, feet, yards, longer, shorter, nearer, farther, closer. M.2.21.3: Locate the unknown number regardless of position. M.2.21.4: Add and subtract within 50, e.g., by using objects or drawings to represent the problem. M.2.21.5: Model writing equations from word problems. M.2.21.6: Apply signs +, -, = to actions of joining and separating sets. M.2.21.7: Identify units of measurement for length. Examples: inches, feet, yard; centimeter, meters. Prior Knowledge Skills:Establish one-to-one correspondence between numbers and objects. Point to matching or similar objects. Add and subtract numbers within 20 using objects, pictures and fingers. Pair "taking away" with subtraction. Take a smaller set out of a larger set. Pair putting together with adding. Combine two sets to make a larger set up to twenty. Count items in a set up to twenty. Using counting, find one less than a number 2 through 20. Using counting, find one more than a number 1 through 20. Understand +, -, = and what they represent. Define more, less, length, width, weight and height. Use vocabulary related to length, width, weight and height. Alabama Alternate Achievement Standards AAS Standard: M.AAS.2.21 Increase or decrease length by adding or subtracting nonstandard unit(s).
Learning Objectives:

The students will make sense of a problem and persevere in solving it.

The students will solve real-world metric measurement word problems involving length.

The students will use strategies based on place value and the properties of operation to add.

Strategies, Preparations and Variations