It is common for algebra students to be confused about the difference between unknowns and variables. After all, they are both often represented by the letter x. But they are not at all the same things. An unknown in algebra is simply an amount whose value is not stated or
Real Curriculum is a US-based company that provides consultation and support to public and private educational organizations and institutions as well as to companies who are developing education-related products and services for children and adults.
Its president, Dave Hendry, has more than 40 years experience in a wide range of educational contexts, and is expert in the design of experiences that engage learners in the development of true understanding.






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