Khan Academy
Khan Academy: Algebra Ii: Manipulate Formulas
Manipulate multi-variable formulas to isolate specific variables in order to solve some word problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
E-learning for Kids
E Learning for Kids: Math: Soccer Stadium: Changing Numbers
On this interactive website students practice various math skills using a real life scenario on a soccer field. Those skills include creating numbers for a number pattern, creating patterns using manipulatives, and using diagrams to...
Illustrative Mathematics
Illustrative Mathematics: Building Toward Fluency
The purpose of this task is to promote certain addition strategies that will help learners learn to fluently add and subtract within 20. Students will use a number line or magnetic cubes to solve addition problems. Learners will be asked...
CK-12 Foundation
Ck 12: Matrices to Represent Data
[Free Registration/Login may be required to access all resource tools.] A collection of resources to help students understand how to use matrices to represent and manipulate data, e.g., to represent payoffs or incidence relationships in...
Oswego City School District
Regents Exam Prep Center: Central Tendency: Mean, Mode, Median
This tutorial discusses mean, median, and mode. It introduces the frequency table and gives several examples. A practice page is included and a teacher resource page that contains an activity using manipulatives.