When students in Year 10 work on algebraic expressions, they often make the same mistakes. Here are some common ones to watch out for:
Order of Operations: Many forget the right order to solve problems (PEMDAS/BODMAS). This means they might do addition before multiplication, which can lead to the wrong answer.
Negative Signs: Sometimes, students mess up negative signs. Putting a negative sign in the wrong place can change the whole answer.
Wrong Values: Students might confuse letters (variables) or use the wrong numbers when they put values into the expressions.
Distributing Wrongly: When they need to expand or distribute expressions, students often forget to do it correctly, which causes mistakes.
Not Simplifying: After getting their answers, some students forget to simplify them, leaving their final answers looking complicated and messy.
When students in Year 10 work on algebraic expressions, they often make the same mistakes. Here are some common ones to watch out for:
Order of Operations: Many forget the right order to solve problems (PEMDAS/BODMAS). This means they might do addition before multiplication, which can lead to the wrong answer.
Negative Signs: Sometimes, students mess up negative signs. Putting a negative sign in the wrong place can change the whole answer.
Wrong Values: Students might confuse letters (variables) or use the wrong numbers when they put values into the expressions.
Distributing Wrongly: When they need to expand or distribute expressions, students often forget to do it correctly, which causes mistakes.
Not Simplifying: After getting their answers, some students forget to simplify them, leaving their final answers looking complicated and messy.