At the Park
(View Complete Item Description)These 3 word problems require students to solve addition and subtraction problems.
Material Type: Activity/Lab
All resources in Oregon Mathematics
Sharing Markers
(View Complete Item Description)Students gain experience and practice with three types of word problems using the "Take From" context: result unknown, change unknown, and start unknown.
Material Type: Activity/Lab
The Pet Snake
(View Complete Item Description)These word problems represent the "Add To" contexts for addition and subtraction.
Material Type: Activity/Lab
Field Day Scarcity
(View Complete Item Description)This task allows students to relate addition and subtraction problems to money in a context that introduces the concept of scarcity.
Material Type: Activity/Lab
Finding a Chair
(View Complete Item Description)These word problems require students to compare contexts for addition and subtraction.
Material Type: Activity/Lab
Peyton's Books
(View Complete Item Description)This task was designed to support students to make sense of problems and persevere to solve them (MP1) and understand the relationship between addition and subtraction. Students will solve the take from, change unknown problem, and through a teacher-facilitated discussion, understand that the problem can be solved using addition or subtraction.
Material Type: Activity/Lab
Maria’s Marbles
(View Complete Item Description)This task includes problem types that represent the Compare contexts for addition and subtraction (see Table 1 in the glossary of the CCSSM for all all addition and subtraction problem types). There are three types of comparison problems – those with an unknown difference and two known numbers; those with a known difference and a bigger unknown number; and those with a known difference and smaller unknown number. Each of these problem types can be solved using addition or subtraction, although the language in specific problems tends to favor one approach over another.
Material Type: Activity/Lab
School Supplies
(View Complete Item Description)This task could be used for either instructional or assessment purposes, depending on where students are in their understanding of addition and how the teacher supports them. The solution shown is very terse; students' solution strategies are likely to be much more varied.
Material Type: Activity/Lab
Daisies in vases
(View Complete Item Description)This word problem requires students to find multiple solutions.
Material Type: Activity/Lab
Measuring Blocks
(View Complete Item Description)Students work in pairs to measure blocks and answer word problems.
Material Type: Activity/Lab
1.OA Link-Cube Addition
(View Complete Item Description)This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials * Link-cubes or snap-cubes (2 colors for each student or pair of students) * A die * Paper and pencil Actions 1. Roll the die. 2. Using a sin...
Material Type: Activity/Lab
1.OA 20 Tickets
(View Complete Item Description)This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials 20 counters or linking cubes per pair of students pencil copy of the problem Actions The teacher poses the problem: Bo bought 20 tickets to p...
Material Type: Activity/Lab
1.OA Domino Addition
(View Complete Item Description)This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials A large set of dominoes to affix to a whiteboard or place in a pocket chart, or a regular set to use on a document projector. One set of domi...
Material Type: Activity/Lab
1.OA Fact Families with Pictures
(View Complete Item Description)This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Write as many equations for each picture as you can. Use the numbers 4, 1, and 5. Here are some equations for this picture. 4+1=5 \hskip4em 5 = 4+1 5-1...
Material Type: Activity/Lab
1.OA Doubles?
(View Complete Item Description)This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important aspects of the task and its potential use.
Material Type: Activity/Lab
1.OA Cave Game Subtraction
(View Complete Item Description)This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials * A cup for each student to represent his/her cave * Counters * Recording sheet Actions The teacher begins by counting out a certain number o...
Material Type: Activity/Lab
Making a ten
(View Complete Item Description)Making a 10 provides a technique to help students master single digit addition. The task is designed to help students visualize where the 10's are on a single digit addition table and explain why this is so. This knowledge can then be used to help them learn the addition table.
Material Type: Activity/Lab
$20 Dot Map
(View Complete Item Description)This problem helps students practice adding three numbers whose sum are 20 or less.
Material Type: Activity/Lab
Using lengths to represent equality
(View Complete Item Description)Students develop a physical understanding for the meaning of equality by trying to find equal lengths using rods.
Material Type: Activity/Lab
Valid Equalities?
(View Complete Item Description)This task helps students broaden and deepen their understanding of the equals sign and equality.
Material Type: Activity/Lab