Curated OER
Putting Together History Puzzle Pieces
Learners attempt to put puzzle pieces together with no prior knowledge. This activity shows students at the beginning of the year that history is like a puzzle, there are often missing pieces, and many ways the pieces can turn to look...
Curated OER
Squares Have Roots?
Students define a square and connect this information to a square root. In this square root lesson, students make a chart listing square numbers and their roots.
Curated OER
One- and Two-Digit Multiplication
Third graders multiply whole numbers by one- and two-digit numbers using base ten blocks and technology connection.
Curated OER
Watt's Up
Students analyze energy efficiency in lighting by visiting eight different classroom stations, determine cost vs. light output, graph their results, and answer questions on worksheet.
Curated OER
Marvelous Multipliers
Third graders, in groups, solve problems by using counters and drawing counters on paper.
Curated OER
Atlatl Lessons Grades 4-12
Young scholars examine motion and how to describe it qualitatively.  In this investigative lesson students see how aboriginal people were environmentally responsible. 
Curated OER
An Opening Time Line Project
Students create a time line of their life starting at birth and each year after that up to their current age. They write and illustrate one important thing for each year, and place their time lines on poster board.
University of Waterloo (Canada)
University of Waterloo: Order of Operations
A quick game in which students must evaluate an arithmetic expression involving three numbers and any of the four basic operations (addition, subtraction, multiplication, division). Students must be careful to do the operations in the...
CK-12 Foundation
Ck 12: Elem Math: Multi Step Problems Using the Four Operations Word Problems
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to use all four operations to solve word problems. Includes video demonstrating a sample problem [1:35] and a set of...
CK-12 Foundation
Ck 12: Elem Math: Adding, Subtracting, and Multiplying Missing Number
[Free Registration/Login may be required to access all resource tools.] A learning module where students must apply the order of operations to find the missing numbers in equations involving addition, subtraction, and multiplication. A...
CK-12 Foundation
Ck 12: Elem Math: Four Operations With Parentheses Missing Number
[Free Registration/Login may be required to access all resource tools.] In this learning module, students must follow the order of operations to solve an equation with parentheses and several operations where one number is missing....
CK-12 Foundation
Ck 12: Elem Math: Place Operators to Make True Statements With Parenthesis
[Free Registration/Login may be required to access all resource tools.] This learning module provides four videos and a set of practice questions in which students use the four basic operations to fill in the missing answer in equations...
CK-12 Foundation
Ck 12: Elem Math: Two Step Addition Sums to 100 Word Problems
[Free Registration/Login may be required to access all resource tools.] The video shows how to break down a word problem into two steps to solve an addition problem with numbers up to 100. The video is followed by a series of practice...
CK-12 Foundation
Ck 12: Elem Math: Add and Subtract Numbers to 1000 (Grade 3)
[Free Registration/Login may be required to access all resource tools.] This learning module features four videos and a set of practice questionsin which students use addition and subtraction to solve problems with more than two values...
CK-12 Foundation
Ck 12: Elem Math: Adding, Subtracting, Multiplying, and Dividing
[Free Registration/Login may be required to access all resource tools.] A learning module where students apply the order of operations to solve equations involving the four operations. A video shows how to solve a sample problem. [2:11]...
Texas Instruments
Texas Instruments: Math by Hand App
This App allows students to review how to perform algorithms for the four basic operations. The three modes - the step-by-step mode, fast mode, and the Missing Pieces game allows students to learn, review, and understand the concepts for...
Texas Instruments
Texas Instruments: Getting Started With Math by Hand Concept App
This App helps students build number sense skills and gain confidence at math by hand. Review how to perform algorithms for the four basic operations (Addition, Subtraction, Multiplication, and Division). A step-by-step mode emphasizes...
Illustrative Mathematics
Illustrative Mathematics: 3.oa the Class Trip
The purpose of this instructional task is for students to solve a two-step word problem and represent the unknown quantity with a variable. This task also addresses the concept of scarcity. Aligns with CCSS.Math.Content.3.OA.D.8 Solve...
Illustrative Mathematics
Illustrative Mathematics: 3.oa the Stamp Collection
This task uses language, half of the stamps, that learners associate with multiplication by the fraction 1/2. Students will understand half of 120 to mean the number obtained by dividing 120 by 2. For learners who are unfamiliar with...
Illustrative Mathematics
Illustrative Mathematics: Using Operations and Parentheses
The purpose of this task is to give students a chance to work creatively with three of the four fundamental arithmetic operations (addition, subtraction, and multiplication). It is well suited for helping students develop fluency with...
CK-12 Foundation
Ck 12: Elem Math: Addition, Subtraction, Multiplication, and Division of Lengths
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to solve word problems about length and distance that involve any of the four operations. Includes video demonstrating a...
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting With Parentheses Missing Number
[Free Registration/Login may be required to access all resource tools.] This is a video and practice problems finding the missing number of a multi-step addition and subtraction problem that has parentheses. The video models the process...
CK-12 Foundation
Ck 12: Elem Math: Single Unit, Multi Step Problems Word Problems
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to solve multi-step word problems involving the four operations and single metric units of capacity. Includes video...
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting With Parentheses Ii
[Free Registration/Login may be required to access all resource tools.] The video in the resource shows how to find a missing operation in a multi-step problem by working backwards. The practice problems involve finding either a missing...