Curated OER
First and Then
In this Christmas problem solving learning exercise, students solve 7 mathematical problems by first doing the work in parentheses and then solving each problem.
Curated OER
Subtraction With Negative Results
In this subtraction activity, students solve 80 problems in which a single digit number is subtracted from another number that is smaller. The answers will be negative numbers.
Curated OER
Place Value Popsicles
Students play a place value game using popsicle sticks and dice. They investigate units and tens.
Curated OER
Number Sense
First graders practice rounding 4 digit numbers using place value concepts. In this estimating sums and differences lesson, 1st graders explore clustering, rounding, and front end estimation as methods for rounding decimals.
Curated OER
How Much is a Name Worth?
Second graders listen to a read aloud of Yangsook Choi's, The Name Jar. First, they estimate how much their name is worth based on the teacher's example. They assign numeric values to the letters of the alphabet in order to compute the...
Curated OER
Subtraction Shopping
Students subtract two digit numbers. They check each other's answers for accuracy.
Curated OER
Multiplying Whole Numbers
For this multiplication of whole numbers worksheet, students follow step by step directions to multiply two pairs of numbers without using a calculator.
Curated OER
Unit 2 Sun & Stars
Young scholars describe stellar objects using terms such as stars, planets, satellites, orbits and light. For this sun and stars unit, students research stellar objects through seven individual lessons discovering star characteristics,...
Curated OER
Value Venture
Learners examine how the value of an item may be different for different people and investigate how perceived value helps determine the price of items in the marketplace. They list what they consider to be the most valuable items in the...
Curated OER
Multiplication Word Problems Using Different Representations
Students solve multiplication word problems by using base 10 blocks and drawing pictures. In this multiplication lesson plan, students also write a reflection of their work.
Curated OER
Classify and Measure Angles #1
In this angles worksheet, students classify and measure 2 simple angles. Worksheet is part of a site with additional activities and links.
Curated OER
Let's Play Ball
In this probability worksheet, students read about a group of students who play six games of basketball and the results. Students solve 6 word problems about the basketball games.
Curated OER
Shopping for Toys
Students pretend as if they have just won a $100 gift certificate to buy some toys and must try to spend as much of it as they can without going over.
Curated OER
Lesson Plans That Meet The Needs of All Students
Differentiated lesson plans are an excellent tool for meeting students' needs in the mixed ability classroom.
Curated OER
Immigration Unit
Third graders develop an appreciate for the various cultures that are present in their local community. Through reading and research, they explain how various culture came to live in their area. At the conclusion of the unit, 3rd...
Scholastic
Scholastic: Study Jams! Math: Addition and Subtraction: Additon With Regrouping
Solve problems step by step by addition with regrouping.
Scholastic
Scholastic: Study Jams! Math: Addition and Subtraction: Without Regrouping
Solve word problems with addition and subtraction without regrouping. Then test your knowledge.
CK-12 Foundation
Ck 12: Elem Math: Addition: 3 Digits
[Free Registration/Login may be required to access all resource tools.] A video and practice questions on adding 3-digit numbers with regrouping. [1:32]
CK-12 Foundation
Ck 12: Elem Math: Overview of Addition Sums to 100 Word Problems
[Free Registration/Login may be required to access all resource tools.] The video explains two addition problems one with regrouping and the other without regrouping.
CK-12 Foundation
Ck 12: Elem Math: Overview of Addition Sums to 100 Word Problems
[Free Registration/Login may be required to access all resource tools.] The video explains two addition problems one with regrouping and the other without regrouping.
Cool Math
Coolmath: Coolmath4kids: Adding Numbers Within 100 With Regrouping
Demonstrates how to regroup when adding 2-digit numbers.
Khan Academy
Khan Academy: Regrouping When Adding One Digit Numbers
In this exercise, students practice regrouping when adding one-digit numbers. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Cool Math
Coolmath: Coolmath4kids: Addition
A set of seven short tutorials on addition. Begins with a basic introduction to how addition works, and covers topics such as using a number line, place value, and regrouping.
CK-12 Foundation
Ck 12: Elem Math: Adding Two Digit Numbers Without Regrouping
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve a 2-digit addition problem without regrouping. The video is followed by practice problems.