Curated OER
Number Line Math
Second graders use a number line to practice subtraction. In this subtraction lesson, 2nd graders use a number line to count backwards. Students participate in mad math activities and solve problems.
Math Slice
Math Slice: Ordering Game
Sequencing skills are the focus of this interactive game. You must be able to put fractions, decimals, whole numbers, and negative numbers in correct order to win and make the train move down the tracks. Immediate feedback given to...
National Council of Teachers of Mathematics
Nctm: Figure This: Math Challenges for Families
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...
CK-12 Foundation
Ck 12: Elem Math: Solving Decimal Word Puzzles
[Free Registration/Login may be required to access all resource tools.] This interactive media source is practice writing decimals. Students have to understand place value for both whole numbers and decimals in order to correctly write...