Practice finding one more or one less than a number. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This site provides examples of comparing quantities, as well as exercises and simple games to practice the skill.

Students will have fun moving around the room and comparing items using sorting cards. They will become familiar with the math vocabulary more/less/same and most/least.

Practice solving more challenging word problems with addition and subtraction. Numbers used are 20 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice adding and subtracting using the number line. Numbers used are 100 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

[Free Registration/Login Required] This flipchart explores the probability that events will occur. Integration of video and graphic arts used to get kids interested in the activity. Practical applications to everyday situations, math...