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Curated OER
The Value of a Number
Young scholars assess informal methods to solve real-world problems that utilize simple equations that involve one variable. They incorporate concrete objects to assist them in the solving of a variety of equations. The students are...
Curated OER
All A-buzz About Math
Second graders participate in Math-Eze activities to comprehend word problems. In this word problem lesson plan, 2nd graders recognize why a hexagon is the best shape for a beehive. Students calculate how far bees must travel to find 2...
Curated OER
Subtraction-There's Got to be An Easier Way!
Third graders observe and demonstrate a variety of problems involving subtraction problems using mental math strategies. They discuss the base ten system and the basic concept of subtraction, and complete a variety of activities...
Math Salamanders Ltd.
Addition—Up to 12 Sheet 5
In this addition activity, students complete 24 problems, filling in missing numbers, either addends or sums. A reference website is provided for additional activities.
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
Adding Integers with Counters
Learners solve integers using addition. In this algebra lesson, students add integers using counters. They define and label patterns created by integer operations.
Curated OER
Adding Ten
For this addition worksheet, students solve 12 problems in which the number 10 is added to a single digit. The page has animal photographs.
Curated OER
Adding Ten
In this addition worksheet, 1st graders practice adding 10 to single digit numbers to find the sums in 14 horizontal problems. They work on a page that is decorated with a clip art bunny and duck.
Curated OER
Adding Ten
In this addition worksheet, students practice adding 10 to single digit numbers to find the sums in 14 horizontal problems. They work on a page that is decorated with a photographs of a duck and a bird.
Curated OER
Adding Zero
In this addition worksheet, 1st graders focus on addition with the number zero. Students complete 4 horizontal addition problems counting the number of objects shown and adding the amount to zero before writing the total on the line...
Curated OER
Adding Zero
For this addition worksheet, students solve 12 problems in which zero is added to a number below 8. The page has photos of tropical fish.
Primary Resources
Primary Resources: Basic Addition and Subtraction
An extensive collection of teacher resources to help in teaching and reviewing the concepts of basic addition and subtraction. There are many worksheets, activities, PowerPoint presentations, smartboard activities, Word, Excel, and pdf...
Illustrative Mathematics
Illustrative Mathematics: Cave Game Subtraction
The purpose of this task is for young scholars to practice creating and memorizing subtraction equations while focusing on missing addends. After modeling the activity with the whole class, this game would be perfect for centers and...
Texas Instruments
Texas Instruments: Fast Nines and Fast Tens
Students learn how to solve a mathematical equation with a missing addend. Students will learn the combinations of addends to find the sums of nine and ten. Students practice math facts with accuracy and immediacy for sums of nine and ten.