LEARNING OBECTIVE: understand how values can be represented in an expression by letters and how to use the values to then work out the answer
SUCCESS CRITERIA: You will be able to substitute a letter for a value in an expression and then work out the answer
ENGAGEMENT ACTIVITY: Play think of a number type games. with stuell them what has dents - I think of a number and then tell them what has happened to it and what the answer is. they have to then work out what the number is.
LESSON: USe examples from Engagement activity to show how the think of a number games can be written as an algebraic expression and then by looking at inverse operations yopu can work out answers.
Lots of examples on IWB
Use these Sweet Bag Presentations to practice writing algebraic expressions. Sweet Bag1, Sweet Bag 2.
Use this Presentation to get the idea of solving equations
Use these equations to get students to solve the problems - Cut out each problem, stick it into your book and then write down what number the letter must be for the sum to be true.
PLENARIES: Working with students at tables, marking work, explaingin if there are any difficulties....
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