Curated OER
How Many Bears in the Forest?
Third graders model the tag and recapture of bears and use proportions to estimate the population of the bears in their forest. This is a statistical sampling method used by scientists and naturalists to determine population numbers.
Primary Resources
Primary Resources: Long Division and Multiplication
Here are some resources to assist the instructor in teaching students to do long division or to multiply large numbers. Includes worksheets, PowerPoint presentations, Smartboard lessons, and Flash presentations.
Goodwill
Gcf Global: Multiplication and Division
Learn the basics of multiplication and division, then practice what you've learned using the interactives.
Math Cats
Mathcats: Long Line O' Math Cats
An interactive math game that includes work on addition, subtraction, division and multiplication. Click Help for instructions.
NumberNut
Number Nut: Basic Math: Two Digit Division
This lesson offers strategies for dividing two-digit numbers. Students are introduced to related vocabulary, long and short division, and two-digit division with remainders. Links to the interactive games allow students to practice and...
CK-12 Foundation
Ck 12: Math Grade 5
Browse resources related to fifth-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.
CK-12 Foundation
Ck 12: Math Grade 4
Browse resources related to fourth-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.
CK-12 Foundation
Ck 12: Elem Math: The Relationship Between Dividend, Divisor and Quotient
[Free Registration/Login may be required to access all resource tools.] In this learning module, students investigate the relationship between dividend, divisor, and quotient. An instructional video [1:39] demonstrates how to use...
CK-12 Foundation
Ck 12: Elem Math: Finding the New Required Amount Word Problems
[Free Registration/Login may be required to access all resource tools.] In this learning module, students must solve word problems where they divide a total amount in a new way. Includes video demonstrating a sample problem [1:43] and a...
BBC
Bbc Skillswise: Calculation: Pen and Paper Methods
This Skillswise site focuses on using pen and paper in solving math problems. Included are a video about why learning to calculate on paper is important, fact sheets and worksheets that give instruction, quizzes on the information...
Other
Chili Math: Writing and Identifying Equivalent Fractions
Fractions that are the same in value but look different are known as equivalent fractions. As long as you multiply or divide the top and bottom of a fraction by the same nonzero whole number, the resulting fraction will be equivalent to...
Math Aids
Math Aids: Decimals Worksheets
Great resource to practice and strengthen math skills pertaining to decimals. Math worksheets are printable, may be customized, and include answer keys.
University of Cambridge
University of Cambridge: Maths and Sports: Jumping
After training hard, Ben and Mia have improved their performance in the long jump and high jump. Can you work out the length and height of their original jumps? This activity explores multiplication, division and fractions in the context...